Appendix A – Specifications
59
Undervoltage Protection
The Gemini drive’s undervoltage protection circuit monitors AC input voltage. If
input voltage falls below 75VAC while the drive is operating, the drive issues an
undervoltage fault, and turns off power to the motor.
Undervoltage protection has the following features:
Threshold Voltage: Voltage falling below 75VAC trips fault
Results of Fault: Power to motor is turned OFF
LEDs: Left = illuminated RED; Right = off
Fault output is activated
Latched fault
Regeneration Protection
The Gemini drive’s regeneration circuit protects it from regenerated energy—
excess energy from the load during deceleration.
NOTE: Regeneration for an extended period of time can cause a regeneration
fault.
Regeneration Protection Specifications
Continuous Activation
Drive Dissipation (watts): Conditions:
GT6-L5 24W Turn on at 215VDC; turn off at 208VDC
GT6-L8 24W Turn on at 215VDC; turn off at 208VDC
GT6-U5 10W Turn on at 92VDC; turn off at 83VDC
GT6-U8 10W Turn on at 92VDC; turn off at 83VDC
Results of Fault: Power to motor is turned OFF
LEDs: Left = illuminated RED; Right = off
Fault output is activated
Latched fault
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