CONTREX CXB2040 User Manual
Page 12
8900 Zachary Lane N., Maple Grove, MN 55369 U.S.A.
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• Manual and external
Push button and a separate input is provided to reset the amplifier
fault reset:
after a fault.
• High-Speed Electronic
Instantly shuts down the amplifier in the event of a short across
Circuit Breaker
the outputs and or ground fault protection.
(HS/ECB):
(i.e. amplifier exceeds 80A for 10 micro seconds)
Low-Speed Electronic
Shuts down the amplifier if the amplifier is operated above the
Circuit Breaker
maximum continuous current rating for a pre-determined period
(LS/ECB):
3 seconds).
• Fold back current limit:
Folds back the continuous current delivered by the amplifier to a preset
value if the amplifier is operated above the maximum continuous current
rating for a pre-determined period.
• Over/under voltage
These circuits constantly monitor motor and amplifier power-
and over temperature:
supply voltages, and motor and amplifier-heatsink temperature. They will
shut down the amplifier in the event of any out-of-specification condition.
(The over voltage protection circuit is set to turn on at +250VDC for 120
VAC line input and +450 VDC for 240 VAC line input.)
CHAPTER 1: DESCRIPTION, FEATURES AND SPECIFICATIONS