Rockwell Automation SA3100 Distributed Power System Drv Config,Program User Manual

Page 75

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Configuring the UDC Module’s Registers

3-37

Drive Warning Register

203/1203

Ground Current Warning

Bit 2

The Ground Current Warning bit is set if
ground current exceeds the ground current
level stored in local tunable GIT_E1%.

Hex Value:

0004H

Sug. Var. Name:

WRN_GND@

Access:

Read only

UDC Error Code:

N/A

LED:

N/A

Voltage Ripple Warning

Bit 3

The Voltage Ripple Warning bit is set if the
ripple on the DC bus exceeds the voltage
ripple threshold value stored in local tunable
VRT_E0%.

Hex Value:

0008H

Sug. Var. Name:

WRN_VR@

Access:

Read only

UDC Error Code:

N/A

LED:

N/A

This bit is intended to be used to detect an input phase loss if three-phase AC input
is used, but it can also be used for a common bus supply.

Reference In Limit Warning

Bit 4

In Vector mode, the Reference in Limit
Warning bit is set if the reference to the
regulator exceeds the maximum value
permitted (+/- 4095) or is being limited by
the system in response to an overvoltage or
undervoltage warning.

Hex Value:

0010H

Sug. Var. Name:

WRN_RIL@

Access:

Read only

UDC Error Code:

N/A

LED:

N/A

In Volts per Hertz mode, this bit is set if current limit is selected and the regulator
has detected a specified current output within a specified time limit. The regulator
will begin adjusting output frequency to limit current.

This bit is also used by the bridge test to indicate an illegal test code. Refer to the
Bridge Test Enable bit (register 100/1100, bit 2) for additional information on the
bridge test.

Tuning Aborted Warning

Bit 5

The Tuning Aborted Warning bit is set if any
of the automatic tuning procedures (e.g.,
resolver balance and gain calibration) is not
successful.

Hex Value:

0020H

Sug. Var. Name:

WRN_TUN@

Access:

Read only

UDC Error Code:

N/A

LED:

N/A

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