Manual

204 Rockwell Automation Publication 1407-UM001G-EN-P - April 2013
Appendix D Specifications
Rotating Diode Monitor - Open and Shorted Diode Inhibit Levels
Phase Rotation Check
Soft Start Function
Voltage Matching
Over-excitation Limiting - Online
Attribute 1407-CGCM
Field current < 1.5 A DC
Generator frequency < 45 Hz
Generator frequency >70 Hz
Attribute Range Accuracy
Pickup 67% of rated voltage ±2% of rated voltage
Time delay 1 s ±0.1 s
Attribute 1407-CGCM
Soft start initial voltage 0…90% of rated voltage in 1% increments
Soft start time 1…7200 s in 1 s increments
Attribute 1407-CGCM
Accuracy Generator rms voltage is matched with the rms
bus voltage to within ±0.5% of the generator
voltage.
Attribute High Limiting Medium Limiting Low Limiting
Pickup range 0…30.0 A DC 0…20.0 A DC 0…15 A DC
Pickup increment 0.1 A DC 0.1 A DC 0.1 A DC
Time range 0…60 s 0…120 s Continuous
Time increment 1 s 1 s
Response time < 3 cycles