1800IF - PAGE 18 OF 19
Valvcon Corporation
http://www.valvcon.com
phone: 603-249-9020 fax: 603-249-9140
2.2.5 RELAY BOARD OPTION (ORDER CODE "R")
The relay board option allows "two wire" or low power control of the actuator for two-position operation. While
115VAC is supplied constantly to power the motor, a two wire signal controls the position of the actuator. The
most common uses for the relay board option are:
1) To provide isolation for actuators wired in parallel.
2) For applications where the control signal is different from the actuator power.
3) For control from low power relays
When the control signal is DE-ENERGIZED, the actuator rotates clockwise. When the control signal is
ENERGIZED, the actuator rotates counter-clockwise.
Valvcon offers relay boards for the following control signal voltages: 115, 230, and 24 VAC, and 12 and 24 DC.
The motor voltage and control signal can be, but do necessarily need to be, of the same voltage. For example, a
115 VAC actuator may be controlled by a 24 VDC control signal. Be sure you have the appropriate board option
for your application.
Single Relay Wiring
2.2.6 DUAL RELAY BOARD OPTIONS (ORDER CODE "R2")
The dual relay board option allows "three wire" or low power control of the actuator. The most common uses for
the relay board option are:
1) To provide isolation for actuators wired in parallel.
2) For applications where the control signal is different from the actuator power.
3) For control from low power relays
While 115VAC is supplied constantly to power the motor, two control signals power relays to drive the actuator.
One control signal drives the actuator clockwise, and another drives it counterclockwise. When neither control
signal is energized, the actuator will stop in position. The actuator may stop in any position.
Valvcon offers dual relay boards for the following control signal voltages: 115, 230, and 24 VAC, and 12 and 24
DC. The motor voltage and control signal can be, but do necessarily need to be, of the same voltage. For
example, a 115 VAC actuator may be controlled by a 24 VDC control signal. Be sure you have the appropriate
board option for your application.
