Siemens A Series - Remote Operation; A-Series 530 Lb-In 120 V On;Off Actuator with Interposing Relay Board (Servo IRB)

Actuation
Remote Operation
8 | 31
09/26/2023
A6V12069989
Remote Operation
CAUTION
● Verify that the main electric power supplied to the actuator is in compliance with
the specifications on the actuator label.
● Engaging the handwheel before or during the application of a supply voltage will
prevent the actuator motor from operating.
A-Series 530 lb-in 120V On/Off Actuator with
Interposing Relay Board (Servo IRB)
The back feeding of one actuator by another one wired in parallel is eliminated by
using the Servo IRB. If the actuator is running Open and the user switches
instantaneously to run Closed, the Open relay will take time to “drop-out” and the
Close relay will take time to “pull-in”. This time lapse is ~ 40 ms. The time delay
provided by the Servo IRB will protect the switches and gears from the controller’s
instantaneous command signal reversal. Current draws and field wirings are not
affected by the Servo IRB.
The host controller should use a one-second time delay for command signal reversal.
CAUTION
Apply voltage to only one direction terminal at a time.