C.7 diagnostic variables – Rockwell Automation SA3100 Distributed Power System Drv Config,Program User Manual

Page 132

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C-10

SA3100 Drive Configuration and Programming

C.7 Diagnostic Variables

The programmer enters the values in the diagnostic variables to establish thresholds
at which drive warnings are generated.

RES_GAN%

Resolver Gain

When RES_GA% is equal to zero, the gain
tuning procedure is performed automatically by
the operating system. Zero is the default value.

The value can range from 0 to 255 counts, with
1 count representing 0.15 volts of gain.

Units:

Counts

Default Value:

0

Low Limit:

0

High Limit:

255

Step:

1

This value should be generated using the auto-tuning procedure because the PMI
Processor can take into account the entire resolver circuit when setting the proper
gain value.

If the gain needs to be re-calibrated, reset the value of RES_GAN% to zero.
However, do not reset the value of RES_GAN% to zero while the inner loop is
running (i.e., TRQ_ON@ is set). If the value is adjusted too low, a drive fault
(register 202/1202, bit 8) will occur.

GIT_E1%

Ground Current Warning Threshold

A drive warning is generated (203/1203, bit 4) if
ground current exceeds the value stored in this
variable. The value is entered in amps times
10, e.g., 10.1 amps is entered as 101.

Units:

Amps

10

Default Value:

100

Low Limit:

10

High Limit:

2000

Step:

1

This value should be set above the value in the ground current feedback register
(208/1208) after the drive is operational.

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