Troubleshooting; Led Indicators - Siemens Micromaster Operating Instructions Manual

Troubleshooting

5 Troubleshooting
There are two types of fault indication on the MICROMASTER Encoder
Module:
Three status LED's on the front panel for indicating the operational
status of Channels A, B and Z (See Figure 5-1 below).
Fault code display specific to the Encoder Module on the AOP, BOP.
5.1
The LED's monitor the continuity of the connections between the Encoder
Module and the attached encoder.
Table 5-1 lists the possible conditions of the LED's and the remedial action
required to resolve the fault condition.
NOTE
At high motor speeds the LED's appear permanently on – this is due to the
high pulse rates.
Table 5-1 Encoder LED Display
LED LED Condition
Flashing
Permanently ON
All
Channels
Permanently OFF
18
Figure 5-1 Encoder Module LED's

LED Indicators

MICROMASTER Encoder Module
Meaning
Normal operating condition.
Fault condition has occurred or the Channel is
not connected.
Check the connections of the cables from the
Encoder Module to the attached encoder.
Fault condition has occurred.
Check the connections of the cables from the
Encoder Module to the attached encoder.
Issue 04/04
Operating Instructions
A5E00146708A2