User Manual RCx-B-xxxAx-8.09
Page 11 of 18
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Rev.2021.8 [email protected]
Manual Override
The RCx-B-xxxAx actuator with manual override can also be certified for hazardous locations (CSA and/or
IECEX). The additional manual override gear case and handle has no effective ignition sources and can
therefore be used in all hazardous locations for which the actuator enclosure is certified for.
Operation of the manual override when the actuator is powered will be difficult as the actuator will try to
maintain the valve in the position it has been commanded to.
Power should be removed if the valve is to be moved manually. If the valve is moved with
the manual override when its power is turned off, it will lose its position, and it will need
to be re-zeroed (as described in the Signal Loss and Calibration section).
Troubleshooting
Upon noticing a problem, your first step should almost always be to recalibrate the actuator by toggling DIP
12 while the actuator is powered. This alone can solve basic problems. See sub-section 3 above for more
details.
If the actuator does not move, try following these steps:
1)
Re-calibrate the actuator. This will move the actuator regardless of what signal it is receiving.
2)
A sticking valve may be the problem. Remove the valve from the actuator, and re-test the actuator.
3)
Remove power. Re-check the wiring and the power/signal apparatus. Power actuator and re-calibrate.
If the problem persists, please call Hanbay for technical support.
