Greystone Energy Systems GT-AR2 Series User manual

IN-GE-GTAR2XXX-01-02 02/19 Page 1 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com
INTRODUCTION
The analog relay module accepts an analog voltage or current signal and controls four output
relays. The input signal has three jumper selectable ranges for either 0-7.5 Vdc, 0-15 Vdc, or 0-20
mA. Each relay has an independently adjustable set-point which is set with a multi-turn trim
pot.
Each form-C relay activates when the input signal is equal to the trip set-point and deactivates
when the input signal falls below the set-point by a deadband amount. The deadband is also
jumper selectable for 1, 3, or 5% of the range.
Features include a regulated power output that can be used to power a transducer or a
resistance input, top-adjust trim-pots for set-point adjustment, an LED power indicator, status
LEDs for each relay and 10 Amp form-C relays. The product comes with standard snap-track for
easy mounting.
BEFORE INSTALLATION
Read these instructions carefully before installing and commissioning the device. Failure to follow these instructions may result in product
damage. Do not use in an explosive or hazardous environment, with combustible or ammable gases, as a safety emergency stop device
or in any other application where failure of the product could result in personal injury. Take electrostatic discharge precautions during
installation and do not exceed the device ratings.
ANALOG RELAY MODULE
GT-AR2 Series - Installation Instructions
WIRING
• Deactivate the 24 Vac/dc power supply until all connections are made to the device to prevent electrical shock or equipment damage. Follow
proper electrostatic discharge handling procedures when installing the device or equipment damage may occur.
• Use 22 AWG shielded wiring for all connections and do not locate the device wires in the same conduit with wiring used to supply inductive
loads such as motors. Make all connections in accordance with national and local codes.
• Connect the plus DC or AC voltage hot side to the PWR terminal. The supply common is connected to the COM terminal. The supply common
is connected to the COM terminal. The device is reverse voltage protected and will not operate if connected backwards. It has half-wave
power supply so the supply common is the same as the input signal common.
• Several devices may be connected to one power supply and the output signals all share the same common. Use caution when grounding the
secondary of a transformer or when wiring multiple devices to ensure the ground point is the same on all devices and the controller.
• Ensure the supplied power is within the device ratings. Power supply voltages outside the ratings may cause over-heating, device damage
or unreliable operation.
• The analog input signal is connected to the IN terminal and the COM terminal.
• The 20V terminal is a regulated power supply output which provides a 20 Vdc power supply at 30 mA maximum that can be used to operate
an external sensor, for example.
• The relay contacts are labeled R1 to R2 to match the set-point pots and each relay has both a normally open and normally closed contact.
Ensure the load is within the contact specications.
MOUNTING
The snap-track device may be mounted in any position. Use only ngers to remove the
PCB from the snap-track, do not pry on the PCB with tools. Do not ex the PCB during
removal or installation. Slide the PCB out of the snap-track or push against one side of
the snap-track and lift the PCB out. Ensure any metallic mounting hardware does not
contact the underside of the PCB.
Avoid mounting in areas where the device is exposed to vibrations or rapid temperature
changes. Mount the snap track with the PCB removed using two screws as shown in
Figure 2.
Once the snap track is mounted, place the bottom edge of the PCB into the bottom
slot on the snap track and then gently press the top edge in both corners until the PCB
snaps into the top slot of the snap track. See Figure 3.
Figure 1
Figure 3
Figure 2

IN-GE-GTAR2XXX-01-02 02/19 Page 2 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com
PRINTED IN CANADA
FACTORY CONFIGURATIONS
The device preset is as follows:
• Range is 0-15 Vdc
• R1 is set to 6 Vdc
• R2 is set to 12 Vdc
• Deadband is set to 3%
CALIBRATION AND SETUP
• Set the INPUT RANGE jumper to the correct position for the signal to
be used. For example, if the input signal is 2-10 Vdc, select the 0-15 Vdc
range.
• Set the deadband jumper to the desired value. This can be changed at
any time with the power on.
• Connect the power supply and the input signal to the correct terminals.
• Turn the power on and the POWER LED will light.
• Apply an input signal equal to the R1 set-point.
• Adjust the R1 pot clockwise until the RELAY1 LED goes out, then slowly
adjust the R1 pot counter-clockwise until the LED lights.
• Apply an input signal equal to the R2 set-point and adjust the R2 pot the
same as for R1, watching the RELAY2 LED.
• Test the operation by increasing the input signal and watch as R1 and R2
turn on at the selected set-points. Then decrease the signal and watch as
the relays turn o at the selected set-points minus the deadband.
SPECIFICATIONS
POWER OUTPUT
Regulated Power Output........20 Vdc ±10% @ 30 mA max to
power an external sensor
INPUT SIGNAL
Input Voltage Range.................0 to 7.5 or 0 to 15 Vdc
Input Voltage Impedance.......>15 KΩ
Input Current Range.................0 to 20 mA
Input Current Impedance.......250 Ω
OUTPUT RELAYS
Type................................................SPDT Form C
Contact Rating............................10 Amps at 125 Vac
Contact Resistance....................100 mΩ maximum
Electrical Life ...............................100,000 operations
Mechanical Life ..........................10,000,000 operations
GENERAL
Power Supply..............................23 to 30 Vdc, 22 to 27 Vac
Consumption..............................80 mA maximum at 24 Vdc
Protection Circuitry...................Reverse voltage protected, overvoltage protected
Operating Conditions ..............0 to 50°C (32 to 122°F),
5 to 95 %RH non-condensing
Storage Conditions...................-30 to 70°C (-22 to 158°F),
5 to 95 %RH non-condensing
Wiring Connections..................Screw terminal block (12 to 24 AWG)
Enclosure......................................Snap track mounting standard,
99mm L x 82.5mm W 32mm H (3.9" x 3.25" x 1.25")
Weight ...........................................110gm (3.88oz)
Country of Origin.......................Canada
DIMENSIONS
99mm
3.9"
82.5mm
3.25"
0001259
R2R1
R1
R2
RELAY 1
RELAY 1 RELAY 2
RELAY 2
POWER
PWR COM 20V IN
DEADBAND
INPUT RANGE
1%
3%
5%
0-7.5V
0-15V
0-20mA
Figure 4
+
-
PWR
COM
20V
IN
24 Vac/dc Power Supply
+
-
Loop Powered Sensor
PWR
COM
20V
IN
+
-
24 Vac/dc Power Supply
R1
R2
0001259
R2R1
R1
R2
RELAY 1
RELAY 1 RELAY 2
RELAY 2
POWER
PWR COM 20V IN
DEADBAND
INPUT RANGE
1%
3%
5%
0-7.5V
0-15V
0-20mA
Input Range 1% 2% 3%
0- 7.5 Vdc 0.075 Vdc 0.225 Vdc 0.375 Vdc
0 - 15 Vdc 0.15 Vdc 0.45 Vdc 0.75 Vdc
0 - 20 mA 0.2 mA 0.6 mA 1 mA
Deadband Values
Figure 6