4
MM300 MOTOR MANAGEMENT SYSTEM – QUICKSTART GUIDE
CONTROL SPECIFICATIONS
CHAPTER 7: SPECIFICATIONS
Control specifications
UNDERVOLTAGE RESTART
Dropout/Pickup Level: ...................................... 60 to 100% NCV in steps of 1%
Short Dip Time: .................................................... 100 to 500 ms or OFF in steps of 10 ms
Medium Dip Time: .............................................. 0.1 to 10.0 s in steps of 0.1 s
Medium Dip Delay: ............................................ 0.2 to 90 s in steps of 0.2 s
Long Dip Time:..................................................... 0.5 to 60.0 min or OFF in steps of 0.5 min
Long Dip Delay: ................................................... 1.0 to 1200.0 s in steps of 1.0 s
Short Dip Time Accuracy:............................... ±5% of total time
Medium and Long Dip Time Accuracy:.... ±1 s or ±5% of total time, whichever is greater
Inputs specifications
AUXILIARY VOLTAGE INPUT (UNDERVOLTAGE RESTART SOURCE)
External VT primary: ......................................... 110 to 690 V AC in steps of 1 (if used)
Input range:........................................................... 60 to 300 V AC
Nominal frequency:........................................... 50 or 60 Hz
Accuracy: ............................................................... ±5% of reading
DIGITAL INPUTS (IO_C MODULE)
Fixed pickup:......................................................... 65 V AC
Recognition time:................................................ 2 cycles
Current draw at rated voltage: .................... 75 mA @ 120 V AC for 200
µ
s every cycle
60 mA @ 240 V AC for 800
µ
s every cycle
Input impedence:................................................ 1.7 k
Ω
Type: ......................................................................... opto-isolated inputs
External switch: ................................................... wet contact
Maximum input voltage: ................................. 300 V AC
DIGITAL INPUTS (IO_E MODULE)
Fixed pickup:......................................................... 20 V DC
Recognition time:................................................ 2 cycles
Current draw at rated voltage: .................... 7 mA @ 24 V DC
14 mA @ 48 V DC
Input impedence:................................................ 1.23 k
Ω
Type: ......................................................................... opto-isolated inputs
External switch: ................................................... wet contact
Maximum input voltage: ................................. 60 V DC
GROUND CURRENT INPUT (50:0.025)
CT primary:............................................................ 0.5 to 15.0 A
Nominal frequency:........................................... 50 or 60 Hz
Accuracy (CBCT):................................................. ±0.1 A (0.5 to 3.99 A)
±0.2 A (4.0 A to 15 A)
Burden: ....................................................................<8.6 mVA at 25 A
