9. Troubleshooting - Introduction
Revision 5
10260S HercuLine® Actuator Installation, Operation and Maintenance Manual
97
7/07
9. Troubleshooting
Introduction
Troubleshooting procedures can be followed when inaccurate or faulty actuator operation is detected. In
this section, troubleshooting procedures consist of a few simple flow charts to test for proper function of
various actuator components. Component replacement is at the PWA or assembly level.
Table 34 indicates some of the observable symptoms of failure that can be identified by noting the faulty
actuator operation.
Table 34 Observable Symptoms of Failure
Symptom
Procedure
No Actuator current output.
Replace CPU Assembly
No Actuator slidewire output.
Replace CPU Assembly
Local display does not light.
See Figure 34
Actuator fails one or more power up diagnostics.
See Figure 35
Actuator motor does not drive in response to input signal.
Perform input calibration.
See Figure 34
Actuator motor does not drive to proper position.
Perform motor calibration.
Non-contact sensor position is not correct.
See “Non-Contact Sensor
Operation” in Section 5.
Auto/Manual Switch does not operate correctly.
See Figure 37
Relay(s) does not operate.
See Figure 38
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