Littelfuse MPU-32 (PGR-6200) Series - Manual (Page 2)

Protection Relays & Controls
© 2013 Littelfuse Protection Relays & Controls
Littelfuse.com/mpu-32
Motor Protection–Advanced
FEATURES IEEE # BENEFITS
Overload 49, 51 Extends motor life and prevents insulation failures and fires
Dynamic thermal model Provides protection through starting, running, and cooling cycles
Communications Remotely view measured values and event records, reset trips, and access setpoints
Ground fault 50G/N, 51G/N Prevents catastrophic failures and fires
Current unbalance/
Phase loss/Phase reverse
46 Prevents overheating due to unbalanced phases
RTD temperature 38, 49 RTD temperature protection (MPS-RTD module) for high-ambient or loss-of-ventilation protection
Phase loss/Phase reverse (current) 46 Detects unhealthy supply conditions
Overcurrent 50, 51 Prevents catastrophic failures and fires; extends motor life
Jam Prevents motor damage by detecting mechanical jams or excessive loading
Undercurrent 37 Detects low level or no-load conditions
PTC overtemperature 49 Overtemperature (PTC) protection for high-ambient or loss-of-ventilation detection
Starts per hour 66 Limits the motor starts per hour to prevent overheating
Differential 87 Optional MPS-DIF module for sensitive winding-fault protection
Reduced overcurrent mode Minimizes arc-flash hazards during maintenance
Metering View measured and calculated parameters with on-board display
MPU-CIM Separate current input module to reduce risk of open-CT hazard and for convenient installation
Analog output Provides means for metering selectable parameters
Data logging On-board 100-event recorder for data logging
Conformal coating Internal circuits are conformally coated to protect against corrosion and moisture
Features & Benefits
Wiring Diagram
Specifications
Protective Functions
(IEEE Device Numbers)
Input Voltage 65-265 Vac, 25 VA; 80-275 Vdc, 25 W
Power-Up Time 800 ms at 120 Vac
Ride-Through Time 100 ms minimum
24-Vdc Source 100 mA maximum
AC Measurements True RMS and DFT, Peak, 16 samples/cycle, and
positive and negative sequence of fundamental
Frequency 50, 60 Hz or ASD
Output Contacts Three Form C programmables
Communications TIA-232 (standard); TIA-485, DeviceNet™, Ethernet (optional)
Analog Output 4-20 mA, programmable
Conformally Coated Standard feature
Warranty 10 years
Mounting
(Control Unit) Panel (standard)
Surface (with MPU-32-SMK converter kit)
(Current Input Module) DIN, Surface
Approvals CSA certified, CE (European Union),
C-Tick ( Australian )
Overload (49, 51)
Phase reverse (current) (46)
Overcurrent (50, 51)
Jam
Ground fault (50G/N, 51G/N)
PTC overtemperature (49 RTD temperature (38, 49)
Unbalance (current) (46)
Starts per hour (66)
Differential (87)
Phase loss (current) (46)
Undercurrent (37)
......
+
12 11 10 9 8 7 6 5 4 3 2 1
13 14 15 16 17 18 19
26 25
21 22 23 24 27 31
PHASE CURRENT
TRANSFORMERS GROUND-FAULT
CURRENT
TRANSFORMER
(recommended) (required)
MPS-RTD
(optional)
INPUT MODULE
MPU-32
MOTOR PROTECTION UNIT
TEMPERATURE INPUT
4-20 mA
ANALOG
OUTPUT
CIM
I/0 MODULE
RELAY 2
RELAY 3
RELAY 1
CONTROL
POWER
DIG IN
CURRENT INPUT MODULE
MPU-CIM
MPS-DIF
DIFFERENTIAL
MODULE
(optional)
A B
C
D
2
1
MPU-32 SERIES (PGR-6200)
Motor Protection Unit
Rev: 4-A-050213
Based on Manual Rev 4