Specifications
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SECTION 5 MACHINE TESTING / TROUBLESHOOTING / SERVICE
5.8.5 Overcurrent Sense
The current limit circuitry receives an input from the current sense transformer T4 and inputs that signal
on pin 3 of IC3. This IC is a voltage comparator circuit and when its threshold is reached, 1V from the T4
transformer, sends an error signal to Pin 10 of IC6 and pin 3 of IC2. This has the eect of shutting down
the pulses generated from IC6, and thereby shutting down the PC650.
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