Inputs; Outputs - GE Multilin MM3 Motor Manager 3 Instruction Manual

CHAPTER 1: INTRODUCTION
1.2.2

Inputs

1.2.3

Outputs

MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
ANALOG INPUT
Range: ......................................4 to 20 mA
Accuracy: ................................±1% of full scale
Alarm: .......................................programmable 4 to 20 mA
Trip:............................................programmable 4 to 20 mA
Isolation:..................................15 V isolated, active source
GROUND FAULT CURRENT INPUT
Conversion: ............................true RMS, sample time 1.67 ms
Range: ......................................0.1 to 1.0 × FLC amps setpoint (for residual connection)
0.5 to 15.0 A (for 50:0.025 CT)
Full scale: ................................1.5 × FLC amps setpoint (for residual connection)
15 A (for 50:0.025 CT)
Accuracy: ................................± (2% + 2), for FLC < 32 A
± (2% + 6), for FLC ≥ 32 A
± 0.3 A (for 50:0.025 CT)
† Accuracy given as ± ([% of reading] + [number of least significant digits])
PHASE CURRENT INPUTS
Conversion:...................... true RMS, sample time 1.67 ms
Range: ......................................0.1 to 8 × PHASE CT PRIMARY AMPS setpoint when external CTs used
0.2 to 250 A when FLC < 32 A
1 to 2000 A when FLC ≥ 32 A
Accuracy: ...............................± (2% +1)
Frequency: .............................20Hz - 200Hz sine wave
SUPPLY VOLTAGE
AC nominal:............................115 V AC, range 80 to 135 V AC
230 V AC, range 150 to 250 V AC
Frequency: .............................50/60 Hz
Power: ......................................25 VA (maximum), 7 VA (nominal)
THERMISTOR INPUTS
Sensor types:.........................positive temperature coefficient (PTC) R
negative temperature coefficient (NTC) R
Delay:........................................1 second
Accuracy: ................................± 5% or 100 Ω (whichever is greater)
VOLTAGE INPUT / POWER READING
Conversion: ............................true RMS, sample time 1.67 ms
Voltage full scale:................1.5 × VT primary
Voltage accuracy:...............± 2% of VT primary or 2% of reading, whichever is greater
Power accuracy:..................± 5% of nominal or ± 5% of reading, whichever is greater
Input voltage:........................120 V AC or 240 V AC nominal;
250 V AC maximum
VT burden: ..............................0.01 VA
ANALOG OUTPUTS
Output: .....................................4 to 20 mA
Maximum load: ....................600 Ω
Maximum output: ...............21 mA
Accuracy: ................................±1% of full scale reading
Isolation:..................................36 V isolated, active source
†
(residual connection)
†
(residual connection)
†
TECHNICAL SPECIFICATIONS
= 100 to 30000 Ω;
HOT
= 100 to 30000 Ω
HOT
1–7