WRS-2224
Programmable Relay Scanner
Instruction Manual
DOUGLAS
R
lighting controls
Contents
Contents
Introduction ........................................................................................................................... 1
Parts and Dimensions............................................................................................................. 2
Specifications ........................................................................................................................ 3
Installation ............................................................................................................................. 4
Switch Inputs ......................................................................................................................... 4
Basics: Normal Mode/Version Number ..................................................................................... 5
Setup: Input Configuration Mode ............................................................................................ 6
Setup: Program Mode ............................................................................................................ 7
Setup: Flick Warn Option ........................................................................................................ 8
Setup: Time Out Option .......................................................................................................... 9
Connections: Stand Alone Panels .......................................................................................... 10
Connections: Multiple Panels ................................................................................................ 12
Troubleshooting ................................................................................................................... 14
Appendix A -Input/Output Log............................................................................................... 15
Notes .................................................................................................................................. 16
DOUGLAS
WRS-2224: Directions & Applications
lighting controls
Introduction
WRS-2224 Programmable Relay Scanner
The WRS-2224 Scanner can be programmed so that when an input is signalled ON or OFF, it switches a
specific group of output relays ON or OFF. The WRS-2224 has 5 inputs and 24 relay outputs.
Each input can be have a unique relay group programmed to it. In addition to the basic ON and OFF
commands, an input can have the optional switching features of 'Flick-Warn' and 'Time-Out'.
24V Transformer
Connections
Relay Output Connections
n
24 outputs, 12 per side.
n
The relay scanner can be programmed
with the built-in keypad to switch a group
of relay outputs when signaled by an
input. There are 5 groupings (5 inputs)
available.
n
Each group can support the FLICK WARN
switching option, while only one group
can be programmed to support the TIME
OUT option.
Group Input Connections
5 available, each controlling one relay
group.
n
Up to 6 low-voltage switching devices can
be connected in parallel to each input.
n
Separate electrically isolated 24V return
connections provided for groups 1, 2 & 3
and for groups 4 & 5.
Digital Link Connection
n
n
Allows the scanner to be linked to a network or another system.
n
There are modules available for:
a. RS-485 Network on new line Proprietary
Communications Protocol;
b. FTT-10 Network on new line Lonworks
Open Standard Protocol.
WRS-2224: Directions & Applications
DOUGLAS
page 1
lighting controls
Parts & Dimensions
Relay Outputs
24 output terminals
(12 per side) are provided
for individual relay control.
n
Individual Output Buttons
Douglas 2-wire switches can
be connected in parallel to
permit individual control of a
relay by a switch.
n
n
In NORMAL mode, use these buttons to
switch the connected relay ON or OFF.
n
In PROGRAM mode, use these buttons
to enter or remove the connected relay
to/from the group being programmed.
Individual Output LEDs
n
In NORMAL mode, LEDs display
if the relay is ON or OFF.
n
In PROGRAM mode, LEDs display
if the relay is included in the
group that is being programmed
to the selected group input.
Master Switch 0verride Buttons
Use these buttons to switch all of
the relays in a selected input
group ON or OFF.
n
Mode Select Buttons & LEDs
n
NORMAL mode.
n
PROGRAM mode.
n
OPTIONS mode:
a. FLICK WARN after OFF;
b. TIME OUT after ON;
c. TIME OUT with FLICK WARN.
Input Select Button
Use this button to select the relay
groups/switch inputs 1, 2, 3, 4 or 5.
n
Group Switch Inputs (5)
n
Connect Douglas 2-wire switches to
switch the group of relays ON or OFF.
n
You can connect up to 6 switches
and/or 2-wire timer outputs to the
same switch input.
Directions
Directions are printed on the
keyboard for handy user reference.
n
Digital Link Control Socket
n
Plug-in for a RS-485 or Lonworks
network interface such as a
Douglas WNX-2624 module.
Dimensions
1
13
2
14
4
16
6
18
8
20
10
22
12
24
3
15
5
17
7
19
9
21
11
6.5"
(165 mm)
·
·
23
4.0"
(103 mm)
1.75"
(45 mm)
Plan View
Side View
Relay Scanners mount to 35mm DIN rail
installed in relay panels.
Each unit is shipped with DIN mounting rail.
DOUGLAS
WRS-2224: Directions & Applications
page 2
lighting controls
Specifications
Specifications
General
Programming
Power:
n
Use the membrane keypad built into the face of
the programmable relay scanner to assign relay
groups to each of the master switch inputs.
n
Program settings (relay groups) are not lost in the
event of a power outage.
n
Programming directions are printed into the front
cover for handy reference.
24VAC / 50mA Class 2 Low Voltage device.
n
Power rating does not include power used to switch relays.
Master Switches:
n
There are 5 master switch inputs that are compatible
with all models of Douglas relay switches.
A maximum of 6 switches can be connected in parallel to
the same master switch input.
Maximum wire length for a master switch is 2000'.
(600m) if using 18 AWG wire.
Environment
n
Digital Link:
Programmable scanners have a digital link socket
that permits connection of network communication
modules.
n
Indoors, stationary, non-vibrating, non-corrosive
atmosphere and non-condensing humidity.
n
Ambient operating temperature:
0O F to +1200 F (-15O to +50O C).
Outputs
n
24 Douglas relay outputs.
n
Outputs fire in sequence (<4 seconds) to prevent
overloads in the line and low voltage circuits.
n
Connect a maximum of 4 relays to each output. Maximum
wire length per output is 500' (150m).
n
Relay outputs are isolated from each other. The pulse of a
local switch connected to a relay on an output will not
pass through the scanner to a relay connected on
another output.
DOUGLAS
WRS-2224: Directions & Applications
page 3
lighting controls
Installation
INSTALLATION INSTRUCTIONS
1. Install the WRS-2224 Programmable Relay
Scanner inside the relay panel. The scanner Outputs
mounts to 35mm DIN rail, as shown in the
1-12
drawing to the right. Mounting rail is supplied
with each scanner unit.
13
1
2
14
4
16
6
18
3
15
5
Outputs
13-24
17
7
19
8
20
10
22
12
24
9
21
11
23
2. Connect the red terminal of each relay to an
output terminal of the scanner. You should
use 18 AWG wire. In most instances, If there
more than 24 relays, install additional scanners.
Inputs
1-5
are
DIN Rail
3. Connect the group switching devices (switch or timer) to the scanner's
group inputs. If you are connecting 24V contact switching devices other
than a Douglas switch or time clock, you must first configure the inputs
for a 24V contact. Use the keyboard on the scanner, as detailed in the
'Input Configuration' section on page 6 of this manual.
4. A maximum of 6 switching devices can be connected in parallel to
the same master input, with a maximum wire length of
2000'/600m if using 18 AWG wire. Refer to the Switch Inputs
section below for more information on input switching devices.
5. After all the output relays have been assigned to lighting loads,
determine which relays are to be switched together as groups.
6. Use the keypad built into the front surface of the scanner to assign
relay groups to be switched by each input. Refer to the SETUP
pages of this manual and the directions printed on the scanner for
details.
Switch Inputs
Douglas Relay Switches
Switching with Momentary
Contacts that use Diodes
· ON & OFF switching with contacts from another
device or system is best accomplished with
momentary type contacts that have a diode
connected in series (one contact and diode for ON
and another for OFF).
· Momentary contacts that utilize diodes have 2
advantages:
1. It is possible to have repeat ON or OFF
commands. For example, during the night, an
OFF signal could be issued every hour to ensure
lights are swept OFF.
2. Douglas relay switches can be connected in
parallel for convenient override.
1
2
3
4
5
6
7
8
9
10
11
12
1
13
2
14
4
16
3
15
5
17
6
18
8
20
10
22
7
19
9
21
11
23
12
24
· The inputs of the WRS-2224 scanner
are compatible with all models of
Douglas relay switches. However, If
you are connecting a different switch
type, you must re-configure the input
before connecting the switch. Follow
the procedure described in the 'Input
Configuration' section of this manual.
13
14
15
16
17
18
19
20
21
22
23
24
W
B
WRS-2224
Relay
1
Scanner SwitchB23
Inputs 4
5
B
B
W Tr
Momentary ON Contact
· Momentary contacts with diodes mimic the
Douglas relay switch. Thus, the default input
configuration of the WRS-2224 scanner is for
the Douglas WR-8501 relay switch.
Switching with 24V
Momentary or Maintained
Contacts (no Diodes)
· Inputs for the WRS-2224 can also be configured to
accept 24V signals that have no diode connected.
The signal can be momentary or maintained.
· When using the 24V contact control, be aware
there are some restrictions. An input can be
configured to switch relays ON when 24V is applied
and OFF when it is removed. However, when this
is the case it is not possible to send repeat OFF
signals without an intervening ON signal. You can
also configure the input so that only OFF signals
are sent if a repeat signal is desired, although in
this case there would be no ON signal. Should
repeat OFF as well as ON signals be needed, then
two 24V contacts would be needed with two
inputs, one for the OFF signal and one for the ON.
ON
Diode
OFF Contact
OFF
Diode
Red
Douglas switch OK with
momentary contacts.
NOT OK with maintained
contacts.
(OR)
Maintained Form C
Contact Set
ON Diode
Coil
OFF Diode
COM
Refer to 'Input Configuration Mode' on page 6 for
all the settings available for 24V contact control.
WRS-2224: Directions & Applications
1
13
2
14
4
16
6
18
3
15
5
17
7
19
8
20
10
22
12
24
9
21
11
23
13
14
15
16
17
18
19
20
21
22
23
24
W
B
WRS-2224
Relay
1
Scanner Switch B23
Inputs 4
5
B
B Tr
W
WR-8001 Rocker Switch
Red
WR-8501 Pushbutton
Switch with
ON & OFF LEDs
Red
· Take care when using Douglas WR8501 switches. The WR-8501 push
button switch will always send a signal
that is opposite to its displayed state. If
repeat ON or OFF control is desired, use
the WR-8001 rocker switch which is
able to select an ON or OFF signal.
Master Sw Override
NO NC
· When connected to the scanner, the
LEDs of a Douglas switch will show the
state of the relay group. If any of the
relays in the group are ON, the group
is defined as being ON and the red LED
is lit. Only when all of the relays in the
group are OFF is the group defined as
being OFF and the green LED is lit.
1
2
3
4
5
6
7
8
9
10
11
12
Red
Maximum:
6 switches
Douglas Timer Automation
· The inputs of the WRS-2224 scanner
are compatible with Douglas timers,
such as the WTP-4408. When
connecting a Douglas timer to the WRS2224 scanner, the input must be
configured for a Douglas relay switch
(default).
WTP-4408
Time Clock
A
B
1
Esc
C
2
1
2
D
3
3
4
5
6
4
7
5
8
6
9
8
9
7
S e n s o r
S e n s o r
0
Clr
W
1
2
3
4
5
6
0
7
W
8
B
DOUGLAS
page 4
lighting controls
Basics: Normal Mode
Output Terminals
Output Leds
Output Buttons
NORMAL MODE
Allows the connected relays to be switched with
the scanner.
To Use Normal Mode:
1. Make sure the individual relays are properly connected to the
output terminals.
2. The WRS-2224 Scanner will usually be in NORMAL mode. If left in
PROGRAM mode, it will revert to NORMAL mode after 2 minutes.
If the NORMAL MODE indicator LED is OFF, press its select
button to exit the PROGRAM mode. The NORMAL MODE
indicator LED should turn ON.
3. In NORMAL MODE, the output LED will be ON if the connected
relay is on.
To switch any relay ON/OFF, press its output button.
Normal Mode
Select Button
4. A flashing LED indicates:
(a) There is a defect in the relay (or)
(b) There are 2 relays connected to the same terminal with one
relay ON and the other OFF.
Basics: Version Number Basics: Normal Mode
Binary Code
VERSION NUMBER DISPLAY
When you are in NORMAL mode and press the NORMAL
MODE select button, some output LEDs, as well as the
button's indicator LED, will flash for 10 seconds.
BINARY CODE is a method of
expressing all whole numbers as
some combination of powers of the
number 2.
The combination of flashing output LEDs 1-8 (left output
terminal) indicate the version number -in binary code- of
the Relay Scanner.
A power of 2 is the number of
times 2 is multiplied by itself, where
2O =1, 21=2, 22=4, 23=8, etc.
If any of the output LEDs 13-20 (right output terminal) are
flashing, their combination indicates the version number
-in binary code- of the WNX-2624 Network Node attached
to the Scanner's Digital Link.
In binary code, the number one
would be 2O, the number two would
be 21, the number three would be
20+21 (1+2), and the number four
would be 22. In like manner, you
can express all whole numbers as
either a power of 2 or as a combination of two or more powers of 2.
1. Any flashing output LEDs 1-8 indicate the version number of
the Relay Scanner, with any flashing LEDs 1-4 indicating the
integer after the decimal point and any flashing LEDs 5-8
indicating the integer before the decimal point.
Equivalent
Numbers Flashing LEDs
0 = none
(none flashing)
1 = 20
first
2 = 21
second
3 = 20+21
first & second
4 = 22
third
5 = 20+22
first & third
6 = 21+22
second & third
7 = 20+21+22 first, second & third
8 = 23
fourth
Scanner Version # LEDs Flashing
2. The combination of flashing numbers #1-4 and #5-8 denote
the integer in binary code (see the insert at upper right).
3.0
3.1
3.2
3.3
3.4
3. When a Network Node is attached to the Digital Link, some of
the output LEDs 13-20 will be flashing. They indicate the
version number of the Network Node, with the combination of
flashing LEDs 13-16 indicating the integer after the decimal
point and the combination of flashing LEDs 17-20 indicating
the integer before the decimal point.
#5, #6
#1, #5, #6
#2, #5, #6
#1, #2, #5, #6
#3, #5, #6
Node Version # LEDs Flashing
4.0
4.1
4.2
4.3
4.4
4. See the insert at lower right for examples of flashing LED
combinations for version numbers that may currently be in use.
#19
#13, #19
#14, #19
#13, #14, #19
#15, #19
DOUGLAS
WRS-2224: Directions & Applications
page 5
lighting controls
Setup: Input Configure Mode
INPUT CONFIGURE MODE
Output Buttons
#13-#23
Allows specifying which type(s) of switching hardware can be
connected to each group switch input.
Output LEDs
#13-#23
The default switch type for all inputs is the Douglas WR-8501
with Led Indicators. This configuration is compatible with all
models of Douglas relay switches, relay time clocks and photo
cells and no re-configuration is necessary for those devices.
However, if you will be connecting any different switch type(s)
to an input, follow this procedure.
Flick
Warn
LED
To Use Input Configure Mode:
1. Make sure NORMAL MODE is selected. Its top indicator light should be ON.
2. Use the INPUT SELECT BUTTON to scroll to the group input #1-5 you
wish to configure (when its INPUT LED is ON).
3. Press and hold the OPTIONS MODE select button. The FLICK WARN LED
will begin flashing.
Normal Mode
Select Button
Options Mode
Select Button
Input
Select
Button
4. One of the OUTPUT LEDs #13-23 will display, showing the current
configuration selected for the input. Refer to the table below for a list of all
available configurations. The factory default is #21, the Douglas WR8501 LED indicator rectified AC pulse switch.
5. Depress the OUTPUT SELECT BUTTON(S) (#13-23) to select the desired
configuration(s) for the input.
Input
LEDs
You have 10 seconds to do this. After 10 seconds, the FLICK WARN LED
stops flashing and the scanner reverts to NORMAL mode.
6. Repeat steps 2-5 to configure other group inputs.
Output Button
Pressed
Switch Type Configured for
13
AC
Momentary
Contact.
14
15
(13) - ON when switched
(14) - OFF when switched
(15) - OPEN=OFF / CLOSED=ON
16
17
Action
(16) - OPEN=ON / CLOSED=OFF
AC
Maintained
Contact.
Coil
(17) - OPEN=no action / CLOSED=ON
18
(18) - OPEN=no action / CLOSED=OFF
19
(19) - OPEN=ON / CLOSED=no action
20
(20) - OPEN=OFF / CLOSED=no action
21 (Default)
LEDs
22
23
Rectified AC Pulse.
Current for Indicator LEDs.
NOTE: Non-LED switches are also
compatible with this configuration.
Rectified AC Pulse.
No current for Indicator LEDs.
NOTE: LED switches will not function
properly with this configuration.
Table 1. Switch Hardware Type
WRS-2224: Directions & Applications
page 6
(21) - Positive=OFF / Negative=ON
(22) - Positive=ON / Negative=OFF
(23) - Positive=OFF / Negative=ON
DOUGLAS
lighting controls
Setup: Program Mode
PROGRAM MODE
Output
Buttons
Allows output relays to be grouped, with each group
controlled by a switch input.
Output
LEDs
To Use Program Mode:
Program Mode
Select Button
1. Make sure the output relays are properly connected to the output
terminals and that the group switches and/or timer outputs are
properly connected to the input terminals.
Normal Mode
Select Button
2. Make sure NORMAL MODE is selected. The top indicator LED of
the NORMAL MODE select button should be ON.
ON Override
Select Button
3. Use the INPUT SELECT button to scroll to the desired input #1-5
(when its indicator INPUT LED is ON).
OFF Override
Select Button
4. Press the PROGRAM MODE select button. Its indicator light will
begin flashing. The OUTPUT LEDs of the relays that are controlled
by the selected input will be ON.
Input
Select Button
5. Add or remove output relays from the selected input by pressing
the OUTPUT button of the desired relay.
6. When you have selected all the relays for the group, press the
NORMAL MODE select button to return to NORMAL mode.
Input
Terminals
7. Repeat steps #3 - 6 to program other inputs with a relay group.
NOTE: A relay can be in more than one group.
Input
LEDs
8. When you are programming a relay group, you can include or
exclude all the output relays by pressing the ON OVERRIDE or OFF
OVERRIDE button, respectively.
9. When you are in NORMAL mode, you can turn all the relays
assigned to an input ON or OFF by selecting that input with the
INPUT SELECT button, and then pressing the ON OVERRIDE or
OFF OVERRIDE button.
NOTE:
If there is 2 minutes of inactivity during
PROGRAM mode, the scanner will revert to
NORMAL mode.
To return to PROGRAM mode, press the
PROGRAM MODE selectbutton.
DOUGLAS
WRS-2224: Directions & Applications
page 7
lighting controls
Setup: Flick Warn Option
FLICK WARN OPTION
Allows any relay group to have the FLICK WARN feature.
FLICK WARN warns occupants that the lights will be switched
OFF in 5 minutes.
Occupants can cancel the OFF sweep for the local circuit by
flicking the local switch. Or, they can cancel the OFF sweep for
the entire group by pressing the group's input switch once.
FLICK WARN Sequence
12
9
OFF
PM
3
2
1
6
OFF Signal
4
Sw
Sw
Lights flash to
warn of OFF
3
Occupant has
5 minutes to
cancel OFF
Sw
Sw
If cancelled,
lights stay ON
If not cancelled,
lights go OFF
To Assign the Flick Warn Option:
1. Make sure the output relays are properly connected to the output
terminals and that the group switches and/or timer outputs are
properly connected to the input terminals.
2. Make sure NORMAL MODE is selected. Its top indicator LED should
be ON.
Time Out
LED
Flick Warn
LED
3. Use the INPUT SELECT button to select the desired group #1-5
(when its indicator INPUT LED is ON).
4. Press the PROGRAM MODE select button. Its indicator LED will
begin flashing. If you have not already done so, select the output
relays that belong to that input's group.
Normal Mode
Select Button
5. Press the OPTIONS MODE select button once. The FLICK WARN
indicator LED will turn on. (Pressing the OPTIONS MODE button
will cycle the selections from FLICK WARN to TIME OUT to TIME
OUT with FLICK WARN back to NO SELECTION.)
Flick/
Time Out
Active LED
Output Mode
Select Button
Program Mode
Select Button
6. Return to NORMAL mode.
7. Repeat steps #3 - 6 to assign the FLICK WARN option to another
group.
Input
Select
Button
8. For any group assigned the FLICK WARN option, the FLICK WARN
indicator LED will be ON whenever the group is selected and the
FLICK/TIME-OUT ACTIVE LED will flash whenever the flick warning
operation is occurring.
To De-Assign the Flick Warn Option:
Input
LEDs
NOTE:
Assigning the FLICK WARN option to a relay group that
controls any HID lighting is NOT RECOMMENDED.
1. Select the group (with INPUT SELECT).
2. Go to PROGRAM mode.
(HID lights require more than 5 minutes to turn ON after
being turned OFF.)
3. Press the OPTIONS button (usually 3 times) so that both the
FLICK WARN LED and TIME OUT LED are OFF.
4. Return to NORMAL mode.
DOUGLAS
WRS-2224: Directions & Applications
page 8
lighting controls
Setup: Time Out Option
TIME OUT OPTION
W h e n a c t iv e ,T IM E O U T c a u s e s th e r e la y o u tp u t t o s t a r t a n in t e r n a l
tim e r w h e n e v e r th e c o n n e c te d r e la y is s w itc h e d O N . U p o n tim e
e x p ir y (2 h o u r s la te r ) th e o u tp u t s w itc h e s th e r e la y O F F .
A llo w s o n e r e la y g r o u p to h a v e th e T IM E O U T fe a tu r e .
IMPORTANT: I f
fe a tu r e a s s ig n e
In s te a d , th e in p
tu rn e d O N a n d
th e
d , th
u t w
d is a
r e la
e in
ill e
b le
y g r o u p o f a n in p u t h a
p u t w i l l not sw i t c h t h e
n a b le th e T IM E O U T fe
th e T IM E O U T fe a tu r e
s th e
r e la y
a tu re
w h e n
T IM E O U T
g ro u p .
w h e n
tu rn e d o ff.
T IM E O U T is
c o n n e c te d to
c lo c k to e n a b
s w itc h e s w ill
w ith T IM E O U
ty p ic a
th e in
le T IM
w o rk
T d u r
lly e n a b le d a n d d is
p u t. A s a c o m m o n
E O U T d u r in g c lo s
n o r m a lly d u r in g b u
in g c lo s e d h o u r s .
TIME OUT during Closed Hours
1
PM
9
Mode
Change
12
3
2
3
5
4
OFF
Sw
TIME OUT mode
enabled at start of
closed hours
Sw
Light turned ON
with wall switch:
timer starts
Sw
Sw
Exit without
switching OFF
6
d w ith a tim e c lo c k
m p le , u s e th e tim e
o u r s . T h u s , lo c a l
s s h o u r s a n d fu n c tio n
6
12
9
6
a b le
e x a
e d h
s in e
3
AM
Sw
Sw
Timer expires,
lights switched OFF
TIME OUT mode
disabled at start of
business hours
Switches work normally
(no TIME OUT) during
business hours
To Assign the Time Out Option:
To De-Assign the Time Out Option:
1. Make sure the output relays are properly connected to the output
terminals and that the timer output is properly connected to the
selected input terminal.
1. Select the group (with INPUT SELECT).
2. Make sure NORMAL MODE is selected. Its top indicator LED should be ON.
3. Press the OPTIONS button so that both the TIME OUT and the
FLICK WARN indicator LEDs are OFF.
3. Use the INPUT SELECT button to select the designated group #1-5
(when its indicator INPUT LED is ON).
4. Return to NORMAL mode.
2. Go to PROGRAM mode.
4. Press the PROGRAM MODE select button. Its indicator LED will begin
flashing. If you have not already done so, select the output relays that
belong to that input.
5. Press the OPTIONS MODE button until the TIME OUT indicator LED
turns ON. (Pressing the OPTIONS MODE button will cycle the
selections from FLICK WARN to TIME OUT to TIME OUT with FLICK
WARN back to NO SELECTION.)
6. If you want to assign the TIME OUT option with a FLICK WARN to the
group, press the OPTIONS MODE button until both the TIME OUT and
the FLICK WARN indicator LEDs are ON.
Time Out
LED
Flick Warn
LED
Normal Mode
Select Button
7. Return to NORMAL mode.
8. For the group assigned the TIME OUT option, the TIME OUT indicator
LED will be ON whenever the group is selected, and the FLICK/TIME
OUT ACTIVE LED will flash whenever the TIME OUT operation is
occuring.
Flick/Time Out
Active LED
Output Mode
Select Button
Scanner Input
When set in TIME OUT mode,
the time clock enables TIME OUT
with an ON signal and disables
TIME OUT with an OFF signal.
Relays that are assigned to the
group are not switched.
Program Mode
Select Button
NOTE:
Only one group can be assigned the TIME OUT option. If
more than one group is assigned TIME OUT, those groups
will not respond to input or override switch commands.
Input
Select
Button
It will be necessary, in that case, to shut off and restart the
Relay Scanner, and then re-program all of the input groups
with only one all-inclusive group assigned TIME OUT.
WTP-4408
Input
LEDs
Time Clock
A
B
1
Esc
2
5
4
7
7
S e n s o r
S e n s o r
C
2
1
4
0
D
3
3
Clr
6
5
8
6
9
8
9
W
1
2
3
4
5
6
0
7
W
8
B
DOUGLAS
WRS-2224: Directions & Applications
page 9
lighting controls
Connections: Stand Alone Panels
Office Floor -Reflected Ceiling Plan
Office
Office
Sw
Office
Office
Office
Hall
NE Quadrant
Office
Sw
Sw
Office
Office
NW Quadrant
Sw
Office
Storage
Library
Office
Zones
Office
Office
Sw
Elevator
Hall
Office
NW Quadrant NE Quadrant
Hall
Hall
Sw
Office
Office
Core
Reception
Hall
Core
SW Quadrant SE Quadrant
Mens
Office
Office
Womens
SW Quadrant
Office
Photo
Copy
SE Quadrant
Hall
Office
Office
Individual
Switches
Office
Office
Office
Office
Office
Relay Panel
White
Transformer
W
B
Group 1
Relay #
1
2
Relays
Lighting Circuit
NW Priv Office
NW Priv Office
Relays
Outputs
1
2
3
4
5
6
7
8
9
10
11
12
OP TIONS
3
Group
Switch
Station
NW
Quad
SW
Quad
NW Priv Office
1
2
14
4
16
6
18
8
20
10
22
12
24
3
15
5
17
7
19
9
21
11
PG M
MODE
13
14
15
16
17
18
19
20
21
22
23
24
W
B
13
23
NORMAL
MODE
ON
OVERRIDE
WRS-2224
Relay
Scanner
OFF
OVERRIDE
INP UT
SE LEC T
4
Library
5
NW Priv Office
6
NW Priv Office
24VAC
1
2
3
B
4
5
B
Inputs
WTP-4408
Time Clock
NE
Quad
SE
Quad
A
B
1
Esc
Core
Core
Core
C
2
1
2
D
3
3
4
5
6
4
7
5
8
6
9
7 08
9
S e n s o r
S e n s o r
Clr
W
1
2
3
4
5
6
0
7
W
8
B
W
24VAC
Power
DOUGLAS
WRS-2224: Directions & Applications
page 10
lighting controls
Connections: Stand Alone Panels
Simple Stand Alone Panels
n
The WRS-2224 Programmable Relay Scanner permits a group of relays to
be controlled with a single switch. The scanner can support up to 5
groups of relays, each controlled by one of 5 switch inputs.
n
In this example, the 24 output relays are divided into 4 groups, with each
group controlling the lights in an area, or zone, of the Office. Group 1
controls the lights in the NW Quadrant (shaded area in Ceiling Plan).
Group 2 controls the SW Quadrant, Group 3 the NE Quadrant and Group 4
the SE Quadrant. The Core circuits are controlled directly by a switch in
the Group Switch Station.
n
Use the keypad built into the front of the scanner to assign the relay
groups. Changes to relay groups are easy to accomplish with the keypad;
no rewiring is necessary. In this example, Relays #1-6 are assigned to
Group 1.
n
Install wall switches to provide for occupant override. They can be either
individual wall switches connected directly to the relays or group switches
connected to the scanner inputs.
In this example, Relays #1-6, which comprise Group 1, are each
connected to a wall switch in a Private Office, as shown in the diagram on
the previous page.
Another application, which can yield significant energy savings, is the use
of the TIME OUT feature. During any period TIME OUT is activated, any
lights in the designated TIME OUT group that are left on for 2 hours will
be switched OFF automatically.
n
In this example, Group 5, to which all of the relays on the floor are
assigned, is programmed for the TIME OUT option. TIME OUT will be
activated and de-activated by the WTP-4408 Timer connected to Group
5's input terminal.
n
The scanner can be set to provide groups with FLICK WARN, in which the
lights flick to warn occupants they will be automatically shut off in 5
minutes. Occupants can then cancel the OFF sweep by flicking the local
switch or by pressing the group switch once.
In this example, each of Groups #1-4 is programmed for FLICK WARN
which is to occur 5 minutes before the OFF sweep time designated for
that group by the WTP-4408 Timer. Group #5 is programmed for the
FLICK WARN along with the TIME OUT option, so its flick warning will
occur with any lights left on 2 hours when TIME OUT is enabled.
DOUGLAS
WRS-2224: Directions & Applications
page 11
lighting controls
Connections: Multiple Panels
Multiple Relay Panels
n
In larger buildings, there often are several load centers that need to be
controlled from one location.
n
A simple wiring strategy is to interconnect the relay panels with a multiconductor bus. This method permits several building-wide controls to
exist at each relay panel. Connect the relay panel's scanner inputs to
the appropriate control wire of the bus.
Main Panel
WRS-2224
Scanner
Projects that are interconnected with a multi-conductor bus should use
a separate transformer to supply the multi-conductor bus.
n
W Tr
B
This is done so the power that switches the relays in each panel is
isolated from the power used for the building-wide switching circuit.
As all Douglas scanners have optically-isolated master switch inputs,
the WRS-2224 Relay Scanner in the panel will isolate the power in the
bus signal from the power used in the panel.
Lights
Rly
Lights
Rly
Lights
Rly
Rly
rN
o d
eM
o
m
l
a
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Individual
Occupant
Switches
Remote Panel
Sw
Rly
Lights
Sw
Rly
Lights
Rly
Lights
Sw
WRS-2224
Scanner
Tr
WRS-2224
Scanner
Lights
Rly
Lights
Rly
Lights
Rly
rN
o d
eM
om
l
a
Rly
Lights
Rly
Lights
Rly
Lights
Rly
Rly
Rly
Rly
Rly
Sw
Rly
Lights
Rly
Rly
Lights
Rly
Rly
Lights
Lights
Rly
Rly
Lights
Lights
Rly
Rly
Lights
Lights
Lights
Rly
Rly
Lights
r d
o
N
em
o
M
l
a
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Sw
Rly
Sw
Rly
Sw
Rly
12345678 WB
2
3
4
5
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Lights
Rly
Rly
Lights
Rly
Rly
Lights
Rly
Rly
1
Lights
Rly
Rly
Sw
Rly
rNo d
eM
om
l
a
Rly
Rly
Rly
WRS-2224
Scanner
Lights
Rly
Lights
Tr
Rly
Rly
Rly
Remote Panel
WRS-2224
Scanner
Lights
Rly
rN
o d
e
o
M
m
l
a
Rly
Sw
Lights
12345678 WB
6
7
8
24V W
B
WTP-4408
W
B
Inter-Connected Panels
A 10-conductor bus will provide eight master switch
controls that can be used in several panels.
n
n
Connect a master switch station and/or timer to the bus
for override and automation.
Sw
1
Sw
2
Sw
3
Sw
4
Sw
5
Sw
6
Group
Switch
Station
WRS-2224: Directions & Applications
page 12
Time Clock
Sw
7
Sw
8
A
B
1
Esc
C
2
1
2
3
4
5
6
4
7
5
8
6
9
708
9
Sensor
Sensor
0
12345678
D
3
Clr
W
1
2
3
4
5
6
7
8
W
B
Global
Transformer
W
B
DOUGLAS
lighting controls
Connections: Multiple Panels
Relay Scanner Networks
n
Another method of interconnecting load centers/relay panels is to use
the Douglas WNX-2624 Network Node. With the WNX-2624 Node, you
can network the WRS-2224 Programmable Relay Scanner with a nonpolarized data signal to other WRS-2224 Relay Scanners.
n
Up to twenty-four WRS-2224/WNX-2624 scanner/node combinations
can exist within a self-configured system.
n
In a self-configured system, the input of one scanner can control relays
that are connected to any of the scanners that are a part of the system.
n
The WNX-2624 Network Node is LonMark compliant and can be
integrated to be part of and to be controlled by another system.
WRS-2224
Relay Scanner
Relay Panel
Relays
R
R
R
Transformer
WNX-2624
Network Node
24V
w
mt
o
c
.
s
l
r
o
C
g
n
i
h
I
L
s.
a
l
u
o
D
R
R
R
R
R
Scanner
R
R
R
Remote Panels
R
Node
DOUGLAS
WRS-2224: Directions & Applications
page 13
lighting controls
Troubleshooting
WRS-2224 Troubleshooting Guide
General Guidelines:
n
Make sure that 24V power exists (always measure between 22V and
30VAC);
n
Make sure all inputs and outputs are tightly connected;
n
Make sure all relay groups are programmed correctly;
n
If non-default input switching devices are used, make sure all inputs are
configured properly.
Problem Encountered
Flashing output LED(s)
during NORMAL mode
Output relay(s) not
tripping properly
FLICK WARN not working
TIME OUT not working
Possible Cause(s)
Corrective Action
Defective output relay
- replace relay
2 relays connected to same output
with one relay ON and the other OFF
- reset relays
- if either relay is in another input group,
remove it from that group
External AC current leaking into circuit
- check wiring
Improper input voltage (must be
between 22V and 30VAC)
- check input configuration
- check input switching device(s) and connections
- check power source
Input(s) not configured when non-default
input switching device(s) used
- configure input(s) per instructions on page 6
Relay(s) also part of another input group
with contradictory input signals
- remove relay(s) from other group
Relay(s) not included in input group
- check programming, re-program if necessary
FLICK WARN not properly programmed
- check programming, re-program if necessary
HID lighting used in FLICK WARN group
- use circuits with non-HID lighting
Inappropriate input switching device used
- make sure input is only ON during TIME OUT period
- use timer as input instead of switch
Relay group not programmed properly
- check programming, re-program if necessary
TIME OUT assigned to more than one group
- assign TIME OUT only to one all-inclusive group
Table 2. WRS-2224 Troubleshooting Guide
DOUGLAS
WRS-2224: Directions & Applications
page 14
lighting controls
Appendix A - Input/Output Log
Date
Output Relays
Input Switches
Input
Type
Remarks
#
Remarks
#
Remarks
Type
Remarks
#
Remarks
#
Remarks
Type
Remarks
#
Remarks
#
Remarks
Type
Remarks
#
Remarks
#
Remarks
Type
Remarks
#
Remarks
#
Remarks
1.
2.
3.
4.
5.
Additional Remarks:
DOUGLAS
WRS-2224: Directions & Applications
page 15
lighting controls
Notes
DOUGLAS
WRS-2224: Directions & Applications
page 16
lighting controls
Notes
DOUGLAS
WRS-2224: Directions & Applications
page 17
lighting controls
WARRANTY
lighting controls
DOUGLAS products are warranted for one year from the
date of purchase by the consumer against defects due
to materials and the company's worksmanship only. The
sole obligation hereunder shall be to repair, or at the
company's option to replace, products as aforesaid,
provided same are returned, upon authorization,
'Transportation Prepaid' to the company's Burnaby,
CANADA office within the said period. Defects or failures
due to improper or careless installation, storage or
handling, or usage other than rated conditions, are
specifically excluded from this warranty. No liability is
accepted for return transportation charges following
repair or replacement as aforesaid or for reinstallation
costs. No other liability of any nature or kind, whether
arising out of or from the use of the product, whether or
not defective, is assumed.
www.DouglasLightingControls.com
4455 Juneau Street • Burnaby, B.C. • CANADA
phone: (604) 873-2797 • fax: (604) 873-6939
DOUGLAS lighting controls reserves the right to cancel or
change items shown in this publication without notice.
DOUGLAS
R