Relay Card UF-DRY410
User Manual – APM, ITA 30 - 40kVA, EPM, NX, NXC 30 - 40kVA And NXr Series UPS
Pin No.
UPS Relay Card User Manual
PIN24
1. Brief Introduction
The UPS relay card is available in three models: UF-DRY210,
UF-DRY310 and UF-DRY410, among which, UF-DRY210 and
UF-DRY310 are used with the iTrust series UPS made by
Emerson Network Power Co., Ltd., and UF-DRY410 is used with
the NXr series UPS, EPM series, APS series, GXE, APM150,
APM300, APL (NXP), iTrust Adapt 16/20/30/40kVA UPSs made
by Emerson Network Power Co., Ltd. The relay card should be
installed in the SNMP card slot of the UPS. It is hot pluggable for
easy installation.
The relay card can provide four channels of relay digital signal
output to the remote site. They are UPS on Battery, Battery Low,
UPS on Bypass or in Standby, UPS Faulty. Each dry contact
signal output channel provides both normally open and normally
closed ports. The relay card can also receive three channels of
digital signal input, two of which control the UPS turn-on and
turn-off respectively, the third is reserved.
Pin name
DRY_IN2, Channel 2 dry contact
signal input
PIN12
DRY_IN1, Channel 1 dry contact
signal input
PIN25
DRY_IN0, Channel 0 dry contact
signal input
PIN9
PIN21
PIN13
RXD_PC, for communication to
PC, receive terminal
TXD_PC, for communication to
PC, send terminal
GND, common GND
Others NC
Description
Reserved
The UPS is turned off if this
contact is closed for more
than one second
The UPS is turned on if this
contact is closed for more
than one second
Reserved, for factory
commissioning
Reserved, for factory
commissioning
Power GND, dry contact
signal input common GND
-
3. Cable Options
Emerson provides three cable options to connect the DB25
connector of the relay card, to suit the user’s different
requirements on the functions of the connector.
Figures 2 to 7 show the appearance and wiring principle of each
cable.
Note
The iTrust UL33 UPS does not support the digital signal input function
of the relay card.
Figure 2 Appearance of cable 1 (UFDRY21SL1)
2. Appearance And Hardware Description
DB25 male (pin-type)
The appearance of the relay card is shown in Figure 1.
DIP switch
DB25 connector
Figure 1 Relay card appearance
The DIP switch is used to configure the UPS turn-on and turn-off
signal input function of the relay card. The DB25 connector
provides dry contact signal input and output. Its pin description is
shown in Table 1.
PIN1
PIN14
PIN2
PIN15
PIN3
PIN16
PIN4
PIN17
PIN5
PIN18
PIN6
PIN19
PIN7
K0_NO
K0_COM
K0_NC
K1_NO
K1_COM
K1_NC
K2_NO
K2_COM
K2_NC
K3_NO
K3_COM
K3_NC
Pin
Figure 3 Wiring schematic of cable 1 (UFDRY21SL1)
DB25 connector pin description
Pin name
Va, power output
K0_NO, Channel 0 dry contact
normally open output contact
K0_COM, Channel 0 dry contact
common output contact
K0_NC, Channel 0 dry contact
normally closed output contact
K1_NO, Channel 1 dry contact
normally open output contact
K1_COM, Channel 1 dry contact
common output contact
K1_NC, Channel 1 dry contact
normally closed output contact
K2_NO, Channel 2 dry contact
normally open output contact
K2_COM, Channel 2 dry contact
common output contact
K2_NC, Channel 2 dry contact
normally closed output contact
K3_NO, Channel 3 dry contact
normally open output contact
K3_COM, Channel 3 dry contact
common output contact
K3_NC, Channel 3 dry contact
normally closed output contact
Description
9~15Vdc (reserved for
factory use)
Closed: UPS on
Battery
Open: UPS on
battery
Closed: Battery Low
Open: Battery Low
Closed: UPS on
Bypass or in Standby
Open: UPS on
Bypass or in Standby
Closed: UPS Faulty
-
Electrical parameter: 30Vdc/1.8A， resistive load
Table 1
Pin No.
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
Figure 4 Appearance of cable 2 (UFDRY21SL2)
DB25 male (pin-type)
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
X14J7A plug (pin-type)
1
2
3
4
5
6
7
Figure 5 Wiring schematic of cable 2 (UFDRY21SL2)
Open: UPS Faulty
1
2. Insert the relay card into the UPS
Note
1. The relay card is hot-pluggable, you can install it without shutting
down the UPS.
2. For the location of the SNMP card slot on the UPS, refer to the user
manual of the UPS.
Figure 6 Appearance of cable 3 (UFDRY21SL3)
This end is labelled "UPS"
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
560 ohm/1W
DB25 male (pin-type)
DB25 male (pin-type)
Figure 7 Wiring schematic of cable 3 (UFDRY21SL3)
4. Installation
1) Remove the SNMP card slot cover on the back of the UPS,
save the screws.
2) Align the relay card with the SNMP card slot, insert the relay
card into the slot along the grooves on both sides of the slot.
3) Fix the relay card through the fixing holes on the relay card
panel with the screws obtained in step 1).
3. Connect the cable
You can select an optional cable per your needs, or make the
cable according to Table 1 and Figures 3 through 7. Connect the
cable end with a DB25 male connector to the DB25 connector of
the relay card, and the other end to the user equipment.
Warning
1. The DB25 connector must connect to SELV circuit. Failure to
observe this could cause damage to the relay card and even lead to
safety accidents.
2. The external equipment must meet the electrical parameter
requirement in Table 1, failure to observe this could cause damage to
the dry contact output terminal.
Note
1. The relay card should be installed in the SNMP card slot of the UPS,
which is also used for the installation of the SNMP card. Therefore, if
you use the relay card, you cannot use the SNMP card.
2. Some electronic components on the relay card are sensitive to static
electricity. To prevent static electricity from damaging the adapter, do
not touch its electronic components or circuits, also avoid their contact
with live objects. Please hold the side edges of the relay card when
moving or installing it.
5. Troubleshooting
Fault 1: The dry contact output signal does not change with the
UPS status.
Action to take: Verify the relay card is properly inserted into the
SNMP card slot.
Fault 2: The UPS does not respond to the UPS turn-on dry
contact input signal.
Unpacking inspection
After the relay card arrives, unpack it, take out the delivery list,
and check the goods against it. Should there be any discrepancy,
contact the distributor immediately.
Action to take: Verify bit 8 of the DIP switch of the relay card is
placed in the “ON” position.
Installation procedures
1. Set the DIP switch of the relay card
Skip this step if you need not control the UPS turn-on and turn-off
through the relay card.
The location of the DIP switch is shown in Figure 1. It is an 8-bit
DIP switch. Its factory default setting is shown in Figure 8.
ON
ON
OFF
1
2
3
4
5
6
7
8
Figure 8 Factory default setting of the DIP switch
Bits 1 through 7 are designed for use in factory, the user is not
allowed to change their default settings. Bit 8 is used to configure
the UPS turn-on and turn-off signal input function of the relay
card, its setting method is described in Table 2.
Table 2
UPS turn-on and turn-off signal input function setting
Bit 8
Function
ON
UPS turn-on and turn-off signal input function enabled
OFF
UPS turn-on and turn-off signal input function disabled
2
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