Warren Controls E025, Installation, Operation And Maintenance Instructions

Page: 6 / 28

6
2600 Emrick Blvd • Bethlehem, PA 18020 • USA • 800-922-0085 • www.warrencontrols.com
INSTALLATION - PROPORTIONAL CONTROL
1. Disengage the building power circuit before wiring. Verify that the battery inside the VMS-50 BCM has its wires disconnected and
leave them that way for now. Disconnect them if they are connected.
2. Connect the VMS-50 BCM to the actuator(s) as shown on wiring diagram. The VMS-50 BCM can power one, two or three actuators.
Actuator A: Connect Relay 1 Normally Open Contact RELAY 1 NO to white wire from actuator to drive the valve stem in the
direction determined by the actuator rotation switch position. Connect 24 Vdc (+) OUT 24 VDC +
→
to red wire from actuator to
provide power. Connect grounded reference - negative/black wire from actuator to 24 Vdc (-) OUT 24 VDC -
→
. Also connect the
control signal (-) to the black wire from the actuator. Connect Relay 1 Common Contact RELAY 1 COM to the control signal positive
(+). If the control signal is 4-20mADC a KR500 500 ohm resistor is required. Terminate the resistor between Relay 1 Normally Open
Contact RELAY 1 NO and 24 Vdc (-) OUT 24 VDC -
→
.
Actuator B: Connect Relay 2 Normally Open Contact RELAY 2 NO to white wire from actuator to drive the valve stem in the
direction determined by the actuator rotation switch position. Connect 24 Vdc (+) OUT 24 VDC +
→
to red wire from actuator to
provide power. Connect grounded reference - negative/black wire from actuator to 24 Vdc (-) OUT 24 VDC -
→
. Also connect the
control signal (-) to the black wire from the actuator. Connect Relay 2 Common Contact RELAY 2 COM to the control signal positive
(+). If the control signal is 4-20mADC a KR500 500 ohm resistor is required. Terminate the resistor between Relay 2 Normally Open
Contact RELAY 2 NO and 24 Vdc (-) OUT 24 VDC -
→
.
Actuator C: Connect Relay 3 Normally Open Contact RELAY 3 NO to white wire from actuator to drive the valve stem in the
direction determined by the actuator rotation switch position. Connect 24 Vdc (+) OUT 24 VDC +
→
to red wire from actuator to
provide power. Connect grounded reference - negative/black wire from actuator to 24 Vdc (-) OUT 24 VDC -
→
. Also connect the
control signal (-) to the black wire from the actuator. Connect Relay 3 Common Contact RELAY 3 COM to the control signal positive
(+). If the control signal is 4-20mADC a KR500 500 ohm resistor is required. Terminate the resistor between Relay 3 Normally Open
Contact RELAY 3 NO and 24 Vdc (-) OUT 24 VDC -
→
.
3. While still disconnected, wire the 24 Vdc External Power Supply LOAD to the VMS-50 BCM. Connect the POSITIVE (+) lead to the
24 Vdc (+) IN 24 VDC+
← terminal, then connect the NEGATIVE (-) lead to the 24 Vdc (-) IN 24 VDC - ← terminal.
4. Connect the 24 Vdc External Power Supply LINE into the building power source. For the VMS-50 PS plug the three pin LINE input
plug into the 115 VAC 50/60 Hz building power source.
5. Verify that building power is live then connect the loose red wire inside the VMS-50 BCM enclosure to the positive (+) battery
terminal and the black wire to the negative (-) battery terminal.
NOTE: Engage the building power to the VMS-50 BCM before connecting the battery. Connecting the battery first causes the VMS-
50 BCM to go into the power failure mode.
For On-Off control see pages 21-25.
Under normal conditions of 24Vdc power supplied to the VMS-50 BCM, a battery requiring an initial charge should become fully
charged in 2 to 4 hours and remain charged until a building power failure occurs. The VMS-50 BCM has a red REPLACE BATTERY
LED. For the LED to illuminate the VMS-50 BCM must be powered by a 24Vdc external power supply. The LED will illuminate if the
circuit board is unable to charge or maintain the charge of the battery. The LED will also illuminate if the battery terminals are not
connected to the circuit board. If the REPLACE BATTERY LED illuminates and the battery is connected to the circuit board replace
the battery. Typical battery life is 5 years. This common gel cell battery is available from most battery supply houses.
REPLACE BATTERY LED FUNCTION