Example Of An Mm300 Order Code; Specifications; Protection Specifications - GE MM300 Instruction Manual

SPECIFICATIONS

Example of an MM300 order code

Specifications
NOTE:
NOTE

Protection specifications

1–6
MM300-GEHS1CAXXXX: MM300 with graphical control panel and USB port, English
language display, high voltage 84 to 250 V DC and 60 to 300 V AC power supply, RS485
Modbus RTU communications, starter control, event recorder, undervoltage autorestart,
three-phase current, thermal overload, undercurrent, single phase underpower, two 10 A
form-A contact output relays, and six digital inputs.
Specifications are subject to change without notice.
ACCELERATION TIMER
Pickup:...................................................................... I
Dropout: .................................................................. I
Time delay:............................................................ 0.5 to 250.0 seconds in steps of 0.1
Timing accuracy:................................................ ±500 ms or 1.5% of total time
Elements: ................................................................ trip and alarm
AUXILIARY UNDERVOLTAGE
Pickup level:........................................................... 60 to 90% of NCV
Time delay:............................................................ 1 to 60 seconds in steps of 1
Timing accuracy:................................................ ± 500 ms
Elements: ................................................................ trip and alarm
CURRENT UNBALANCE
Range:...................................................................... 4 to 40% in steps of 1
Accuracy: ............................................................... ±2%
Time delay:............................................................ 1 to 60 seconds in steps of 1 s
Timing accuracy:................................................ ±500 ms
Elements: ................................................................ trip and alarm
CALCULATION METHOD
If I ≥ I : ( [I - I ] /I ) x 100%
AV FLA M AV AV
If I ≤ I : ( [I - I ] /I ) x 100%
AV FLA M AV FLA
Where:
I = average phase current
AV
I = current in a phase with maximum deviation from I
M
I = MOTOR FULL LOAD CURRENT setpoint
FLA
FUSE FAILURE (RUNNING STATE ONLY)
Timing:..................................................................... <500 ms
Elements: ................................................................ trip and alarm
> I
av pu
< I or timer expired
av pu
AV
MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION