Encoder diagnostics – Pulsafeeder Pulsar DLCM User Manual

Page 106

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Original mode

100

Failed to detect shaft rotation with the
motor turned on

The tachometer has failed. Remove power to
the DLCM and pump motor. Turn the power
back on and repeat the start up procedure. If
the TACHOMETER FAILURE message is
displayed again, remove all power from the
DLCM.

Refer to Section 5 – Installation: Tachometer
Input for information on how to access the
Tachometer Sensor wiring connections,
located on the Field Wiring Board. Verify the
condition of the TACHOMETER SENSOR
connections (refer to Section 11.1.2 –
Tachometer Troubleshooting). If these
connections are correct, contact Technical
Services.