Installation

Figure 15 Drive Enable Outputs

During a reset, bridge inhibit or a fault the normally on output is off and the normally off output is on. During operation the normally on output is on and the normally off output is off.

Drive Reset Outputs

The drive reset outputs allow the 525 PMC to reset the external drive after a fault. The output is provided with both normally on and normally off outputs. To utilize the normally on output connect between drive reset (+) and normally on drive reset (-). Consequently, to utilize the normally off output connect between drive reset (+) and normally off drive reset (-). The (+) indicates the collector of an optical isolator, while the (-) indicates the emitter as shown below.

Figure 16 Drive Reset Outputs

During a reset the normally on output is on and the normally off output is off. After completion of the reset and during operation, the normally on output is off and the normally off output is on.

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Emerson 400276-01 operation manual Drive Enable Outputs, Drive Reset Outputs