GE MOTOR MANAGER 2 Instruction Manual page 15

1 INTRODUCTION
CALCULATION METHOD: if I
THERMAL COOLING TIMES
RANGE:
ACCURACY:
UNDERCURRENT
RANGE:
DELAY RANGE:
ACCURACY:
STALLED ROTOR
RANGE:
DELAY RANGE:
ACCURACY:
THERMISTOR INPUTS
SENSOR TYPES:
DELAY:
ACCURACY:
ANALOG INPUT
RANGE:
ACCURACY:
ALARM:
TRIP:
COMMUNICATIONS
TYPE:
BAUD RATE:
PROTOCOL:
FUNCTIONS:
GE Power Management
I
M
≥ I
UB%
: = ----------------------
AV FLC
i
I
M
< I
UB%
if I : = ----------------------
AV FLC
i
where I = average phase current
AV
I = current in a phase with maximum deviation from I
M
I = MOTOR FULL LOAD CURRENT setpoint
FLC
5 to 1080 min when motor is stopped;
50% of motor stopped value when motor is running.
± 1 minute
10 to 100% × motor FLC or OFF
1 to 60 seconds
±1 second
1.15 to 4.50 × FLC or OFF
0.5 to 5 seconds
±0.5 second
positive temperature coefficient PTC; R
negative temperature coefficient NTC; R
1 second
±5% or 100 Ω (whichever is greater)
4 to 20 mA
±1% of full scale
programmable 4 to 20 mA
programmable 4 to 20 mA
RS485 2 wire, half duplex
1200 to 19200 baud
Modbus RTU
Read/write setpoints, Read coil status, Read actual values, Read device status,
Execute commands, Loopback Test
MM2 Motor Manager 2
I
–
AV ×
100%
AV
I
–
AV ×
100%
AV
=100 to 30000 Ω
HOT
=100 to 30000 Ω
HOT
1.3 SPECIFICATIONS
AV
1-5
1