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Table 3-3. fault configuration for fault alarm – Hamilton Sundstrand Company ACT2000 User Manual

Page 48

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42

ACT2000 USER GUIDE

Fault Alarm Type

Persist Time

Fault Action


Driver Over Current

10 Secs


1 Sec

Driver current > Max Force equivalent

current, Fault.

Driver current > Max Force equivalent

current, Fault. If persists for 1 Min.,

Shutdown

Driver current > 18 Amps, Fault. If

persists for 1 Min., Shutdown


Tracking Error

10 Secs

If in RUN state, not in home dead band

and position error > allowable,

Fault.

If not in overcurrent, RDC not faulted and

feedback not equal to demand, Fault.

Watchdog Expired

< 1 Sec

If last reset was caused by watchdog

timer timeout or illegal address attempt,

Fault.

RDC Failure

< 1 Sec

Tests hardware for RDC failure, sets

Fault if RDC failure bit set.

Retract/Extended

Command

N/A

Fault not used.

Unregulated Voltage Low

10 Secs

Unregulated voltage low, Fault.

+14 Volts Low

7.5 Secs

< 1 Sec

+14 V supply < 12 V, Fault.

+14 Volts High

7.5 Secs

< 1 Sec

+14 V supply > 16 V, Fault.

-14 Volts Low

7.5 Secs

< 1 Sec

-14 V supply > -12 V, Fault.

-14 Volts High

7.5 Secs

< 1 Sec

-14 V supply < -16 V, Fault.

Input Voltage Low

7.5 Secs

< 1 Sec

Input Voltage < 75 V, Fault.

Input Voltage High

7.5 Secs

< 1 Sec

Input Voltage > 180 V, Fault.

DSP Failure

N/A

Fault not implemented.

Electronics Over Temp

10 Secs

Electronics

temp

≥ 110 °C, Fault

Table 3-3. Fault Configuration For FAULT Alarm