Relay Control
Relay Control -- Introduction
Two-position control, using a digital
(relay) output, is used to turn something
on and off. We use a differential and an
offset to tell an output when to open and
close based on the control variable and
setpoint.
Relay Control -- Definitions
• Differential – amount of change in the
control variable from when the output
turns on to when it turns off
• Offset – a value that creates a deadband
for a stage – the first stage typically has
an offset of 0
Offsets and Differentials, 2 Setpoints
"COOLING" or
"HIGH ALARM"
Differential
Output turns ON
Output turns OFF
Offset
Cool
Setpoint
Offset
Heat
Setpoint
Differential
Output turns OFF
Output turns ON
"HEATING" or
"LOW ALARM"
Offsets, Differentials and Deadband, 1 Setpoint
"COOLING" or
"HIGH ALARM"
Differential
Output turns ON
Output turns OFF
Offset
Deadband
Setpoint
Deadband
Offset
Differential
Output turns OFF
Output turns ON
"HEATING" or
"LOW ALARM"
Used
on the
SZ1025b
and
SZ1143b
Proportional Control
Proportional Control -- Introduction
Analog outputs are called modulating
outputs. These outputs vary based on
how far the input is away from setpoint.
Modulating outputs provide tighter
control than two position outputs.
Proportional Control -- Definitions
• Proportional Control – generates an
output that is related to the distance
between the active setpoint and the
input
• Proportional Band/Throttling Range –
number of degrees (or percent of span) that
the input must change to drive the
output from 0 to 100% (either 0 to 20 mA or 4
to 20 mA)
Proportional Control -- Definitions
• Setpoint Offset – a value that creates a
deadband before modulation starts
• Aquastat – allows the action to reverse
when a digital input is made (SZ1017a,
SZ1018, SZ1143b, SZ1051) or an analog input
exceeds a certain value (SZ1025a, SZ1018,
SZ1062, SZ1064)
Proportional Control -- Definitions
• Direct Acting – the output increases as
the input increases
• Reverse Acting – the output decreases
as the input increases
Direct Acting
Direct Acting - Output 12mA @ Setpoint
Input
Setpoint + 1/ 2 P
}
Setpoint
Setpoint - 1/ 2 P
4m A
12m A
20m A
Output
P
Reverse Acting
4m A
12m A
20m A
Reverse Acting - Output 12mA @ Output
Setpoint
Input
Setpoint + 1/ 2 P
}
Setpoint
Setpoint - 1/ 2 P
4m A
12m A
20m A
Output
P
Direct Acting - Output 4 or 20mA @ Setpoint
Cooling
} }
P
PSetpoint + 1/ 2P
nt
Setpoint
12m
4m A
4m A
20m
12mAA
Input
P
Setpoint + P
PSetpoint + 1/ 2 P
Setpoint
Input
Setpoint
Setpoint - P
Setpoint - P
12m
4m A
4m A
Input
} }
20m
12mAA
P
Setpoint
P
20m A
Output
Output
P
}
Setpoint - 1/ 2P Setpoint - 1/ 2P
20m A
Output
ut
P
Direct Acting
Setpoint + P
rse Acting
P
Input
Direct Acting
Input
rse Acting
ut
Heating
Ou
Input
Setpoint
Setpoint - 1/ 2 P Setpoint - 1/ 2 P
}
P
Direct Acti
Direct Acti
} }
}
P
Reverse Acting -POutput
4 or 20mA @ SetpointP
2PSetpoint + 1/ 2P
Setpoint
12m
4m A
20m
12mAA
20m A
Output
Cooling
ut
Input
P
Setpoint + P
} }
12m
4m A
20m
12mAA
Output
20m A
Output
12m
4m A
4m A
Heating
Output
P
Setpoint
4m A
Setpoint - P
Input
PSetpoint + 1/ 2 P
int
Setpoint - P
P
Reverse Acting
4m A
Reverse Acting
int
Setpoint - 1/ 2P Setpoint - 1/ 2P
Setpoint
20m
12mAA
Output
Ou
Input
Setpoint
}
Setpoint - 1/ 2 P Setpoint - 1/ 2 P
Setpoint - P
20m A
Setpoint - P
4m A
12m
4m A
20m
12mAA
Output
P
20m A
Ou
Keypad Programming
Thermostat Keypad Layout
Occupied
Heating
Cooling
fan
switch
service
status
Fan
Service
Program/
Data
WARMER
system
switch
COOLER
program
setup
clock
setup
SZ1060 Series Keypad Layout
Comparison of Thermostat Keypads
Occupied
Heating
Cooling
fan
switch
service
status
Fan
Service
Program/
Data
WARMER
system
switch
COOLER
program
setup
clock
setup
Typical Superstat™ Keypad
SZ1060 Series Keypad
SL1001a & SZ1140 Series Keypad Layout
SCROLL
NEXT
UP
DOWN
Conventional Thermostats
• Menu-by-Menu Example
– Follow Along Using Demo Panel
– Slides Printed in Handout
– Catalog Page 183
• All Thermostats Basically the Same
• Complete Sequences in Product
Manuals
• All Sequences in Product Catalog
• www.tcsbasys.com
SZ-QD Trainer Demo Panel (SZ1031)
p ro g ra m
s e tu p
248 always works!!!
p ro g ra m
s e tu p
Use down arrow to get
to 248 more quickly.
SZ-QD Trainer Demo Panel (SZ1031) --
continued
Use your
badge number
as the address
for your stat.
p ro g ra m
s e tu p
p ro g ra m
s e tu p
p ro g ra m
s e tu p
SZ-QD Trainer Demo Panel (SZ1031) --
pro gra m
s e tu p
pro gra m
s e tu p
continued
SZ-QD Trainer Demo Panel (SZ1031) --
p ro g ra m
s e tu p
p ro g ra m
s e tu p
p ro g ra m
s e tu p
continued
SZ-QD Trainer Demo Panel (SZ1031) --
continued
This Screen is
Repeated for
Occupied Periods
B, C, and D
This Screen is
Repeated for
Occupied Periods
B, C, and D
SZ-QD Trainer Demo Panel (SZ1031) --
program
setup
pro gra m
s e tu p
pro gra m
s e tu p
continued
Model Specific Features – SZ1035
p ro g ra m
s e tu p
p ro g ra m
s e tu p
Additional Model Specific Features --
p ro g ra m
s e tu p
p ro g ra m
s e tu p
p ro g ra m
s e tu p
continued
SZ-QD Trainer Demo Panel (SZ1031) --
program
setup
program
setup
program
setup
program
setup
continued
SZ-QD Trainer Demo Panel (SZ1031) --
p ro g ra m
s e tu p
p ro g ra m
s e tu p
program
setup
continued
SZ-QD Trainer Demo Panel (SZ1031) --
p ro g ra m
s e tu p
p ro g ra m
s e tu p
p ro g ra m
s e tu p
continued
SZ-QD Trainer Demo Panel (SZ1031) --
continued
SZ-QD Trainer Demo Panel (SZ1031) --
continued
SZ-QD Trainer Demo Panel (SZ1031) --
p ro g ra m
s e tu p
p ro g ra m
s e tu p
program
setup
continued
SZ-QD Trainer Demo Panel (SZ1031) --
p ro g ra m
s e tu p
s e tu p
p ro g ra m
s
e
t u
p
p ro g ra m
continued
SZ-QD Trainer Demo Panel (SZ1031) --
p rs oe gt ur ap m
s e t u p
p ro g ra m
p ro g ra m
s e tu p
continued
SZ-QD Trainer Demo Panel (SZ1031) --
continued
p ro g ra m
s e tu p
NOTE:
This is a secondary
access code.
p ro g ra m
s e tu p
Setting the Clock & Schedule (SZ1031)
248 always works!!!
Use down arrow to get
to 248 more quickly.
Setting the Clock & Schedule (SZ1031) -- continued
This Screen is
Repeated for
Occupied Periods
C and D
Setting the Clock & Schedule (SZ1031) -- continued
These Screens are
Repeated for Wed.,
Thurs., Fri., Sat., Sun.,
Plus
Holiday #1 & #2.
This Screen is
Repeated for
Occupied Periods
C and D
Setting the Clock & Schedule (SZ1031)-- continued
Total Possible Holidays
2 x 12 x 99 = 2,376
scheds.
instances
days
days
.
Setting the Clock & Schedule (SZ1031)-- continued
Where to Get Help or Answers
•
•
•
•
Instructions Sent with Product
TCS Basys Controls Catalog
Training & Reference Manual
www.tcsbasys.com
• Call TCS Directly – 800-288-9383
Software Programming
PC Based Software -- Revelation Professional
• Menu Driven Programming
• Use for Network Setup & Testing,
Commissioning, & Load Balancing
• “Read” Before Making Changes
• “Write” Before Going to NEXT Menu
• “Write” vs. “Write Half / Write Page”
• “Load All” & “Save All” Options
*** NOT SUPPORTED AS OF JAN 2009 ***
Superstat™ – conventional heat/cool…
Rev Pro Manual pg C-9
Superstat™ – conventional heat/cool…
Rev Pro Manual pg C-9
Superstat™ – conventional heat/cool…
Rev Pro Manual pg C-9
PC Based Software -- Insight
Similar to Revelation Professional…
• Tab Driven Interface
• Uses Same Datasheets as Ubiquity
• Use for Network Setup & Testing,
Commissioning, & Load Balancing
• Shows Current Values (no “read” required)
• “Write Page” Before Going to New Tab
*** NEW SOLUTION AS OF JAN 2009 ***
Superstat™ – heat pump…
Superstat™ – heat pump…
Superstat™ – heat pump…
Superstat™ – heat pump…
Superstat™ – heat pump…
Superstat™ – heat pump…
Internet Style Software – Ubiquity
Similar to Revelation Professional…
• Single Page for All Programming Info
• Shows Current Values (no “read” required)
• Writes All Values on “Submit”
• “Read Controller” Option (if needed)
Single Page Programming Screen
General Info, Alarms, & Assigned Assets
Schedule
Controller Summary & Ubiquity Functions
System and Setpoints & Digital Inputs
Digital Outputs
Additional Functions, Comments & Buttons
Superstat™ – heat pump…SZ1033
Superstat™ with 1 analog output…SZ1017a
Superstat™ with 1 analog output…SZ1041
Superstat™ with 2 analog outputs…SZ1051
Superstat™ with 2 analog outputs…SZ1053
General Purpose Controller…SZ1143b
General Purpose Controller…SZ1143b - cont’d
General Purpose Monitor…SZ1145
General Purpose Monitor…SZ1145 - cont’d
General Purpose Monitor…SZ1145 - cont’d
VAV Box Controller…SZ1025b
VAV Box Controller…SZ1025b
- cont’d
VAV Box Controller…SZ1025b
- cont’d
2 Channel, 365-Day Time Clock…SL1001a
2 Ch., 365-Day Time Clock…SL1001a - cont’d
Where to Get Help or Answers
•
•
•
•
Instructions Sent with Product
TCS Basys Controls Catalog
Training & Reference Manual
www.tcsbasys.com
• Call TCS Directly – 800-288-9383
 Controller Wiring