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Rockwell Automation GMLC Reference Manual User Manual

Page 600

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Publication GMLC-5.2 - November 1999

563

System Over Temp Fault 1394

The System_over_temp_fault_1394 is activated if the ambient air
temperature inside the system module becomes too hot.

System_over_temp_fault_1394 is a logical (Boolean) variable, with a
value of:

1 (true) if the ambient air temperature inside the system module
becomes too hot, and

0 (false) if not.

This fault could occur for any of the following reasons:

Excessive ambient temperature,

Insufficient air flow, or

Excessive acceleration and deceleration duty cycle.

When System_over_temp_fault_1394 = 1,
System_module_hard_fault_1394 = 1, and Drive_hard_fault_1394 = 1.

Clearing this fault clears Drive_hard_fault_1394.

Clear this fault with a Reset Fault block, set to Reset 1394.

Important: Do not use an Equation block to clear this fault. The Reset

Fault block not only resets this variable to zero, it also resets
the Drive OK Relay inside the 1394 system module. This
relay must be reset before program execution can be
resumed.

!

ATTENTION: A hard fault is a serious condition! Be
certain to correct the underlying cause of this fault,
before clearing the fault and reactivating the drive.