1. MOTOR PROTECTION SYSTEM
MPS
MOTOR PROTECTION SYSTEM

2. High-End MOTOR PROTECTION
NEW PRODUCT
WHY IS THE STARTCO MOTOR PROTECTION SYSTEM UNIQUE ?
The MPS combines:
High-End MOTOR PROTECTION
with
MOTOR CONTROL ,
METERING ,
No other product available combines these features.
Details are on forthcoming slides.
and
DATA LOGGING

3. The MOTOR PROTECTION SYSTEM’S MODULAR DESIGN
OPERATOR
INTERFACE
(OPI)
RS-485
RTD MODULE
CONTROL UNIT
(CTU)

4. MPS MOTOR PROTECTION SYSTEM for THREE-PHASE INDUCTION MOTORS
MONITORS CURRENT, VOLTAGE,
SPEED, & TEMPERATURE to PROVIDE:
PROTECTION
NINETEEN PROTECTIVE FUNCTIONS
CONTROL
START AND STOP THE MOTOR
On-board and Remote Switches, Network
METERING
Current, Voltage, Power, Temperature, Speed...
DATA LOGGING
64-Event Data Logger
VFD Compatible

5. MPS MOTOR PROTECTION SYSTEM : APPLICATION
PROTECTION ONLY
CURRENT-BASED PROTECTION
VOLTAGE-BASED PROTECTION
TEMPERATURE PROTECTION
FAILURE-TO-ACCELERATE PROTECTION
INTERFACE WITH OTHER DEVICES
pressure xducers, accelerometers, etc.
PROTECTION & CONTROL
MOTOR START/STOP CONTROL
START TIME-OUT
CONTACTOR FAILURE
Auxiliary contacts
* These are not hardware options

6. MOTOR PROTECTION SYSTEM FEATURES
DFT, True-Sequence, and True-RMS Analysis
a Discrete Fourier Transform algorithm filters harmonics and the system responds only to fundamental frequency signals
Zero-, Positive-, and Negative-sequence components are measured
True-RMS current analysis can be used in thermal calculations
Flash program memory
Easy firmware updates
Upload the new program with any PC using FREE software
Latest version posted on our web site:
Nonvolatile memory
Set points
Logged Data

7. The MPS’s 16 PROTECTIVE FUNCTIONS: GENERAL
FOR EACH PROTECTIVE MODE:
Select a Trip Action: Trip1, Trip2, Trip3, Disable
Select a TRIP Set Point
Select a Trip Delay Time
Select an ALARM Action: Alm1, Alm2, Alm3, Disable
Select an ALARM Set Point
Select an Alarm Delay Time
When an ALARM Occurs:
Alarm relay contact(s) operate
Alarm LED’s light
When a TRIP Occurs:
Trip relay contact(s) operate
Starter-control relay contacts de-energise
Trip LED’s light

8. MPS CURRENT-BASED PROTECTIVE FUNCTIONS - 1
THERMAL OVERLOAD PROTECTION
Hot and Cold Times; 2 cold, 1 hot start
I2t: K-Factor or NEMA current model
Sequence Components or True-RMS
Thermal Lockout with Adjustable Level
Start-Inhibit capable
OVERCURRENT PROTECTION
Always active when enabled
DFT
JAM PROTECTION
Active in Run mode when enabled

9. MPS CURRENT-BASED PROTECTIVE FUNCTIONS - 2
PHASE UNBALANCE PROTECTION
True-Sequence Current Components
PHASE LOSS PROTECTION
PHASE REVERSE PROTECTION
UNDERCURRENT PROTECTION
Loss of Load Protection
DFT
EARTH-FAULT PROTECTION
Ground Faults, Earth Leakage

10. MPS VOLTAGE-BASED PROTECTIVE FUNCTIONS
PHASE UNBALANCE PROTECTION
True-Sequence Voltage Components
PHASE LOSS PROTECTION
PHASE REVERSE PROTECTION
UNDERVOLTAGE PROTECTION
DFT
OVERVOLTAGE PROTECTION
UNDERFREQUENCY PROTECTION
OVERFREQUENCY PROTECTION
Detect unacceptable supply conditions before attempting a start

11. MPS: OTHER PROTECTIVE FUNCTIONS
POWER FACTOR PROTECTION
PTC TEMPERATURE PROTECTION
RTD TEMPERATURE PROTECTION
Up to 24 RTD’s
Hot-Motor Compensation of Thermal Model
FAILURE-to-ACCELERATE PROTECTION
UNDERSPEED
with Tachometer Input
START TIME-OUT PROTECTION
CONTACTOR FAILURE PROTECTION
using contactor auxiliary contacts
ANALOG INPUT SET POINTS

12. THE MPS CONTROLS SEVENTEEN
MPS STARTER CONTROL
THE MPS CONTROLS SEVENTEEN
TYPES OF STARTERS:
FULL VOLTAGE NON-REVERSING
FULL VOLTAGE REVERSING
TWO SPEED
REACTOR CLOSED TRANSITION
REACTOR OPEN TRANSITION
RESISTOR CLOSED TRANSITION
RESISTOR OPEN TRANSITION
SLIP RING(Wound Rotor)
SOFT STARTER
SOFT STARTER w/BYPASS CONTACTOR
ADJUSTABLE SPEED DRIVE
PART WINDING
AUTO TRANSFORMER
TWO WINDING
DOUBLE DELTA
WYE-DELTA OPEN TRANSITION
WYE-DELTA CLOSED TRANSITION
- OR -
PROTECTION ONLY

13. MPS: STARTER CONTROL ECONOMIC BENEFITS
REDUCED COMPONENT COUNT
REDUCED COMPLEXITY
INCREASED RELIABILITY
DECREASED INSTALLATION TIME

14. MPS-CTU: THE CONTROL UNIT
THE CORE OF THE SYSTEM
THE CONTROL UNIT CAN FUNCTION AS A STAND-ALONE DEVICE:
Without an Operator Interface, and
Without an External Computer
* after initial set-up

15. MPS-CTU: CONTROL UNIT FEATURES
UNIVERSAL POWER SUPPLY
65 to 265 Vac, 40 to 400 Hz
80 to 275 Vdc
Power factor corrected
COMPACT SIZE
1/2 DIN
7.5”L x 4.8”W x 5”H
INPUTS and OUTPUTS
Voltage and Current Inputs
Five programmable output relays
Analog input and output
Seven programmable digital inputs
Tachometer Input
Communications I/O
OPERATOR INTERFACE
Four status LED’s
Power, Trip, Alarm, Error
Universal Reset switch

16. MPS-CTU: CONTROL UNIT INPUTS5 7 10 8 9 4 6 L 1 2 S P G
RELAY OUTPUTS 3 4 5 - AN
OUT V H
COMM
NETWORK C O M 6 7 8
DIGITAL INPUTS
24 VDC
SOURCE
PHASE CURRENT
EARTH
LEAKAGE
VOLTAGE C O M V A B
5 A
1 A
EFCT S H
COMM 2 4
IRIG AN IN
PTC
I/O MODULE 3 2 1
1. Phase-CT Inputs - 1 A or 5 A Module Communication
2. Earth-Leakage CT Input 7. IRIG Input (time synch)
- 1 A, 5 A, or Sensitive 8. Digital Field Inputs
3. Voltage Inputs - up to 600 V direct  24 to 120 Vdc/Vac
4. Analog Input mA, VFD, tach, etc 9. Digital Tach Input
5. PTC Temperature Input Network Communication

17. MPS-CTU: CONTROL UNIT OUTPUTS4 3 6 7 5 L 1 2 S P G
RELAY OUTPUTS 3 4 5 - AN
OUT V H
COMM
NETWORK C O M 6 7 8
DIGITAL INPUTS
24 VDC
SOURCE
PHASE CURRENT
EARTH
LEAKAGE
VOLTAGE C O M V A B
5 A
1 A
EFCT S H
COMM 2 4
IRIG AN IN
PTC
I/O MODULE 1 2
1. Relay Outputs 4. Network Communication
- 2 Form A, 2 Form C 5. Module Communication
2. Solid-State Output Vdc Supply (for digital
3. Analog Output inputs & digital tach.)
7. 24 Vdc Module Supply
Form-A contacts have a greater current-carrying capacity than Form-C.
24 Vdc supply is current-limited to 150 mA. (note that the peripheral module 24 Vdc supply is current-limited to 350 mA).

18. MPS-OPI: OPERATOR INTERFACE
Metering Displays
Information Displays
Motor-Control Switches
Status LED’s
System Programming

19. OPERATOR INTERFACE FEATURES
LED’s to Indicate:
Alarms and Trips, Motor or Starter State, Starter Control Source
Large Vacuum-Fluorescent Display
4 X 20 Characters
Menu-Structured Display Screens
Keys for Motor/Starter Control
Keys for Display Control,
Alpha-Numeric Input
Reset
“Hot Key”
-40 to 60 degrees C operating temperature range.
When a trip occurs pressing RESET jumps to Trips & Alarms screen where T’s & A’s are itemized and trips can be reset. Pressing ESC or left arrow returns to pre-called screen.
Stop & Run LED’s refer to starter if starter control is used, or motor if starter control is not used.
Stop key is always functional. It issues a trip if starter control is not used.

20. OPI MOUNTING OPTIONS
PANEL MOUNTED
CTU MOUNTED

21. OPERATOR INTERFACE : MAIN MENU
Main Menu: Metering
Messages
Setup

22. MPS-OPI METERING EXAMPLE: CURRENT UNBALANCE SCREEN
MAIN MENU
Metering 
Messages 
Setup 
 METERING
Current 
Unbalance (I) 
Earth Leakage 
 METERING
Current 
 Unbalance (I) 
Earth Leakage 
User-Selected Name
+ Seq. I1: pu
– Seq. I2: pu
Unbalance: pu

23. MPS-OPI: OPERATOR INTERFACE METER DISPLAYS 1/3
User-Selected Name
Ia: A pu
Ib: A pu
Ic: A pu
User-Selected Name
3Io: A
3Io: pu
Earth Leakage
Line Current
User-Selected Name
Used I2t: %
Trend I2t: %
Thermal Capacity
User-Selected Name
Vab: V pu
Vbc: V pu
Vca: V pu
Voltage
Time-to-trip, Time-to-reset, or
Inhibit time may be displayed

24. OPERATOR INTERFACE METER DISPLAYS 2/3
User-Selected Name
+ Seq. V1: 0.93 pu
– Seq. V2: 0.07 pu
Unbalance: pu
Voltage Unbalance
User-Selected Name
P= 0.0 kW PF=+0.00
S= 0.0 kVA
Q=0.0 kVAR
Power
User-Selected Name
0.0 kWh
0.0 kVAh
0.0 kVARh
Energy

25. OPI METER DISPLAYS 3/3 SUMMARY Max/Min Stator: 146/141°C
Bearing: /62 °C
Load: No Data
RTD Temperature Summary
RTD Name 
RTD ID: M1N1
Function: Stator
Reading: 146°C
RTD Individual Temperature
Can also display
open or short sensor
User-Selected Name
Analog In: mA
DI :
RY :
Input/Output Status
99/08/ :58:58
Starter: Stop
Motor: No Current
Speed: RPM
System State

26. OPERATOR INTERFACE MENU: Messages
Trips and Alarms Present
Status Messages
Event Records (64 latest events)
Statistics
Emergency Thermal Reset

27. OPERATOR INTERFACE MENU: Status Messages
Digital Input STOP Open
Digital Input Interlock Open
I2t Start Inhibit
Temperature protection disabled (due to ETR)
Backspin Timer On

28. MPS MESSAGES: DATA RECORDING
EVENT RECORDS: (64 records; FIFO)
At a TRIP Record
Source, Ia, Ib, Ic, 3Io, Vab, Vbc, Vca, An. In, U/B(I), U/B(V), I2t, Temperatures
Time and Date Stamped
At a START Record
Maximum Ia, Ib, Ic, 3Io, U/B(I), U/B(V);
Minimum Vab, Vbc, Vca;
I2t Used, during each start
Time and date stamped
STATISTICS:
Trip Counters
Number of each type of trip
Running Hours
Since last reset
Starting I2t: Current based. Last ten successful starts.

29. OPERATOR INTERFACE MENU: SETUP
Protection: Set Points Digital Inputs
Starter Relay Outputs
System Ratings: CT’s, PT’s, etc. Analog Input
Hardware: RTD Module enable Analog Output
VFD Sampling enable System Configuration: System Name
Network Comm setup Password Change
All set points are password protected

30. MPS-RTD: RTD MODULE FEATURES
Eight Inputs per Module
Inputs Individually Configured
RTD Type
Alarm and Trip Set Points
24 Vdc Control Power supplied by
Control Module (or other source)
Solid-State Multiplexing
Up to Three RTD Modules per MPS
Compact Design; 4.4 x 3.4 x 2.1”
Surface and DIN-rail mounting
LED Indication
Power, Communication
MPS-RTD

31. MPS-RTD: RTD MODULE BENEFITS
ADVANTAGES:
Design permits mounting in motor’s RTD junction box
Only four wires brought back to base unit
Life not limited by mechanical relay lifetime
Add the modules needed to match number of inputs
Don’t have to purchase RTD-matched modules
No separate power supply required
MPS-RTD

32. ICT-2 INTERFACE CT CONNECTION
SUPPLY
The MPU-16A comes complete with the ICT-2, 6 m of interconnection cable, and mounting hardware.
Phase CT’s and the Earth-Fault CT are connected to the ICT-2. The ICT-2 accepts both 1 A and 5 A CT-secondary windings. The ICT-2 should be placed close to the current transformers to reduce CT lead length, and burden. This also minimizes electrical noise picked up by the CT leads. The ICT-2 terminates all of the CT’s connected to it. This eliminates open-CT hazards should the MPU-16A be removed from service. The ICT-2 output is communications signal strength (thus not a hazard if open) and is carried to the MPU-16A via a 6 conductor shielded cable. This modular approach to interface current transformer design allows the main control unit to be mounted where most convenient for observing, programming, etc, while the CT connection is made close to the CT’s. With the Startco MPU-16A there is no trade-off between convenience and function. Competitive motor protection relays all include their interface current transformers as part of the main package necessitating such a trade-off.
ICT-2 connections may be made such that ground-fault protection is provided without a separate earth-fault CT, as a residual connection. As few as two phase CT’s may be used, with the third phase being derived.
On the bottom of the ICT-2 are shorting screws. These screws must be removed to isolate Phase-CT and Earth-Fault-CT secondaries for in-line applications. Shorting screws must not be removed for residual or two-CT applications.
TO MOTOR

33. MPS SIMPLIFIED CONNECTION DIAGRAM
CONTACTOR K1
MOTOR
SUPPLY
UP TO 8 RTD’S PER MODULE
Va, Vb, Vc
UP TO 600-V DIRECT
4-WIRE CONDUCTOR K1
8 DIGITAL INPUTS
NETWORK COMMUNICATIONS

34. SE-COMM-MPS: I/V/P METERING SCREEN