Motorola MVME162P344E Channel isolation module

The reference index pulse, generated by the encoder simulation circuit, can be displaced from its 0° position by up to 360°. Although the displacement is specified in degrees, the resolution is approximately 1.4° (i.e. the nearest of 256 possible locations will be selected).Manual offset is used to correct for speed controller offsets which cause the motor shaft to slowly rotate CW or CCW when the speed reference is set to zero. The parameter should be increased to correct CCW drift and decreased to correct CW drift. The default value is 100. Before making the adjustment you must ensure the drive is in the ‘run’ mode and that the speed reference value is zero.

By setting parameter P31 to ‘1’ the offset of the speed controller 

can be automatically corrected. In practice, auto offset can be used to correct large offsets, with the fine adjustment being made via parameter P30. The adjustment has auto timeout; unless the adjustment is made within 7 seconds error E5 will be reported and the drive will de-energise. Before making the adjustment you must ensure the drive is in the ‘run’ mode and that the speed reference value is zero.A fine adjustment of the actual speed of the motor for a given input voltage can be made using parameter P32. To perform this adjustment the speed of the motor will need to be monitored using an external instrument. The default value is 100. If parameter P15 (speed limit) is changed this adjustment will need to be repeated.

Maintenance

 Routine maintenance is not necessary, but occasional checking of the following points is recommended. Motor You should inspect the motor to ensure that no bolts or couplings have become loose during operation. This will prevent minor defects from developing into more serious problems. You should inspect the motor cable or leads periodically for signs of wear. Do not attempt to stretch or force the cable around tight bends.Check that the drive is free of loose particles and has a free flow of air over its heatsink. Where a fan is fitted, make sure it is operating and blowing air over the entire length of the heatsink. Check the security of ground connections made to the drive

Common problem

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