ABB MPS-C 2000 User manual

IB 6.1.2.8-1B

INSTRUCTIONS FOR MPS-C 2000

ELECTRONIC TRIP CONTROL UNIT

ABB

Courtesy of NationalSwitchgear.com

NOTE: This Instruction Book is provided solely for the convenience of the

purchaser, and does not purport to cover all details or variations in equipment nor

to provide contingency to be met in connection with installation, operation, or

maintenance. Should further information be desired or should particular problems

arise which are not covered sufficiently for the purchaser’s purposes, the matter

should be referred to the nearest Sales Representative.

CONTENTS

PAGE

INTRODUCTION................................................................................................ 3

FUNCTIONS...................................................................................................... 4

SETTINGS......................................................................................................... 4

RANGE SELECTION................................................................................ 4

LONG TIME FUNCTION........................................................................... 4

SHORT TIME FUNCTION......................................................................... 4

INSTANTANEOUS FUNCTION.................................................................. 5

GROUND FUNCTION............................................................................... 5

CURRENT UNBALANCE........................................................................... 6

CURRENT SENSOR THRESHOLDS......................................................... 6

INFORMATION FUNCTION...................................................................... 6

TEST FUNCTIONS............................................................................................ 7

VOLTAGE INTERFACE MODULE (VIM)............................................................. 7

SETTINGS.............................................................................................. 7

MPS-C 2000 SETUP INSTRUCTIONS................................................................ 8

GENERAL INSTRUCTIONS..................................................................... 8

MENU LAYOUT...................................................................................... 9

METERING SUBMENU........................................................................... 10

SETTINGS SUBMENU............................................................................ 11

CHANGE SETTINGS SUBMENU............................................................. 12

AVAILABLE SETTINGS.......................................................................... 13

PASSWORD PROTECTION................................................................... 13

RECORDS SUBMENU........................................................................... 14

Courtesy of NationalSwitchgear.com

IB 6.1.2.8-1B

Page 3 ABB

INTRODUCTION

The electronic trip control unit described in this publication is a solid state,

microprocessor controlled unit, used in conjunction with a power circuit breaker to

protect power systems. The power circuits being protected are typically 3-phase,

with and without a neutral connection, 50 or 60 Hz with AC RMS voltages between

208 and 600 volts and continuous currents as high as 4200 amps, while ground

currents may not exceed 1200 amps.

The primary function of the electronic trip control unit is the coordination in the

opening of circuit breakers to protect equipment in the event of a fault that

produces short circuit currents of up to 130 KA.

The MPS-C 2000 trip control unit measures current to an accuracy of within 1% of

the cicuit breaker rating.

The Voltage Interface Module (VIM) option measures voltage to an accuracy of

within 1% of the circuit breaker rating, and power to within 2% of the circuit

breaker rating.

The trip unit is completely self-powered, taking the the tripping energy from the

current through the breaker without any auxiliary power supply.

The complete control of the circuit breaker is achieved by a system comprising:

(a) current sensors, (b) an electronic trip control unit, and (c) a magnetic latch trip

device.

The sensors, the electronic trip control device and magnetic latch are mounted

as an integral part of the circuit breaker to provide complete protection for

overcurrent, short circuit and ground faults. Internal diagnostic circuitry is provided

to determine and visually identify the cause of circuit breaker tripping, either as

overload, short circuit or ground fault.

Courtesy of NationalSwitchgear.com

IB 6.1.2.8-1B

Page 4

ABB

1. FUNCTIONS.

The electronic trip control device provides the following four basic functions:

1.1 Protection Function

Four basic trip elements within the unit perform the protective functions:

Long time, short time, instantaneous and ground.

1.2 Information Function

An indicator (target) and an LCD screen display information for the tripping functions.The indicator shows if

the device has issued a trip command and the LCD can be polled to determine the type of trip. The LCD and

keypad buttons are used to determine the settings of the unit. A red LED indicates self-monitoring functions.

1.3 Test Functions

The unit can be connected to an external test set to check functions and settings.

1.4 Communication Functions

The unit can be connected to switchgear mounted devices which are connected to ABB INCOM Protocol.

2. SETTINGS.

2.1 Range Selection

The range selector provides the primary amperage used as the base for the unit. It is either set for the 1 X or

0.5 X the breaker rating: Default is 1 X.

2.2 Long Time Function

2.2.1 Threshold (pickup)settings- The range of settings is: 0.5 to 1.0 in steps of 0.1. Multipliers are used in

conjunction with sensor rating and the range selector. Multipliers are selected by keypad input and displayed on

the LCD. Default is 1.0.

2.2.2 Trip Time - Time is defined by long time overcurrent curves (graph) and intermediate values between band

limits. Default is MAX.

2.2.3 Reset Time - Real time is counted up if the current exceeds the function threshold and counted down if the

current drops below the function threshold. Real time is set to zero if the current drops below the power supply

threshold.

2.3. Short Time Function

2.3.1 Threshold (pickup) settings - 2 3 4 5 6 7 8 9 10 DISABLED. The settings are multiples of the sensor ratings

and the range selector. Settings are made by the keypad and the LCD display. If the INST function is disabled, the

short time unit cannot be disabled. Default is DISABLED.

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IB 6.1.2.8-1B

Page 5 ABB

2.3.2 Trip time - Time is defined by the short time overcurrent curves (graph). I²t function is selectable.

I²t curves are fixed and do not vary with pickup settings. I²t is operational only from 2X to 4X. Trip times with I²t out

are defined as follows: Default is maximum with I²t in.

Maximum = 0.350 - 0.500 sec

Intermediate = 0.20 - 0.320 sec

Minimum = 0.080 - 0.170 sec

2.3.3 Reset time - Real time is counted up if the current exceeds the function threshold and counted down if the

current drops below the function threshold.

2.4 Instantaneous Function

2.4.1 Threshold (pickup) settings - 3 4 5 6 7 8 9 10 11 12 DISABLED. The settings are multiples of the range

selector setting and are made via the keypad and the LCD screen. If the short time unit is disabled, the

instantaneous unit cannot be disabled. Default is 12.

2.4.2 Trip time - There is no intentional delay in the instantaneous function.

2.4.3 The instantaneous unit includes a jumper on the circuit board which eliminates the possibility of instantaneous

and short time being simultaneously disabled.

2.5 Ground Function

2.5.1 Threshold (pickup) settings - These settings are made via the keypad and the LCD screen. This function may

also be disabled. Default is 1200 A.

SENSOR RATINGS

SETTINGS

200

600

800

100,200,300,

600,900,& 1200A

1600

2000

2500

300,400,600,

800,1000,& 1200A

3000

3200

4000

4200

500,600,800,

900,1000, & 1200A

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IB 6.1.2.8-1B

Page 6

ABB

2.5.2 Trip time - The time is defined by the overcurrent curves (graph). I²t function is selectable. I²t curves are fixed

and do not vary with pickup settings. If the I²t function is out, the trip times are defined as follows: Default is

Maximum with I²t in.

2.5.3 Reset time - Real time is counted up if the current exceeds the function threshold and counted down if the

current drops below the function threshold. Real time is set to zero when the curent drops below the power pickup

point.

2.5.4 Residual ground current - In a three phase, four wire system the ground fault functions can discriminate

between a ground fault and a neutral current.

2.5.5 Ground fault summing - The reset technique used for long-time and short-time function is applied. i.e, real time

is counted up if the current exceeds the function threshold and counted down if the current drops below the function

threshold. The ground function includes arcing ground summation for tripping. This feature allows arcing grounds

occurring sufficiently close together to be summed so that their magnitude will exceed the threshold setting of the

ground element.

2.6 Current Unbalance

2.6.1 Pickup settings - 5% to 50% in increments of 1% and DISABLED. These changes can be made either via the

keypad and LCD or the NIM communications unit. Default is DISABLED. The current unbalance function is only

available for systems with VIM attached.

2.7 Current Sensor Thresholds

2.7.1 Long time - 0.5X to 1.0X of sensor rating in increments of 0.1.

Short time - 2X to 10X of sensor rating in increments of 1.

Instantaneous - 3X to 12X of sensor rating in increments of 1.

Ground - 100 amps to 1200 amps

300 amps to 1200 amps

500 amps to 1200 amps

Depending on sensor rating. See section 2.5.1

2.8 Information Function

2.8.1 The information function consists of an LCD screen, a mechanical target, a light emitting diode (LED) and six

keypad buttons.

2.8.2 The mechanical target provides indication that the unit has caused a circuit breaker opening. Further

information about the function such as the type of trip, LT, ST, INST, GND, I UNB, V UNB, or UV and the fault

current is displayed when any keypad button in depressed after a trip has occurred, or can be found in the records

menu.

DELAY

SETTING

100 - 800A

SENSORS

1600 - 2500A

3000 - 4200A

MAX 5.2 - 9.5 SEC 0.59 - 1.2 SEC 0.35 - 0.50 SEC

INT 2.1 - 4.2 SEC 0.24 - 0.47 SEC 0.20 - 0.32 SEC

MIN 0.68 - 1.3 SEC 0.07 - 0.18 SEC 0.05 - 0.17 SEC

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IB 6.1.2.8-1B

Page 7 ABB

2.8.3 The target resets automatically when the unit is re-energized. Reset occurs in 2 seconds.

2.8.4 The red LED blinks once per second to indicate that the MPS-C 2000 unit is powered up and functioning

normally. (self monitor light).

2.8.5 The red self monitor light blinks five times per second to indicate long-time pickup and continues to do so until

reset or the breaker trips.

2.8.6 When the unit is powered up and the settings table has timed out, the LCD screen will display metering

information provided that the unit has enough line current to power up or is externally powered.

3. TEST FUNCTIONS

3.1 The unit continuously monitors the condition of the microprocessor and is reported by a flashing LED on the front

panel. Upon failure, the LED will glow steadily.

3.2 The unit is compatible with the 607 test set.

4. VOLTAGE INTERFACE MODULE (VIM)

4.1 The VIM performs the following functions:

a. Provides the phase voltage for remote display.

b. Houses the electronics for performing the power, power factor and frequency processing based

on current data from the MPS-C 2000 box.

c. Performs calculations to determine voltage unbalance and undervoltage faults.

4.2 If a VIM device is installed the MPS-C 2000 unit must be connected to a NIM communications unit.

4.3 If a VIM is installed in the unit, a cable connects the unit to the potential transformer located on the rear of the

MPS-C 2000 mounting plate and plugs directly into the VIM board.

4.4 Settings

4.4.1 Voltage unbalance

4.4.1.1 Pickup - 5% to 50% in increments of 1% and DISABLED. Set via the front panel or the NIM communication

unit. Default is DISABLED. Connection to a NIM is necessary for this function to be enabled.

4.4.1.2 Trip time - 0.1 to 25.0 seconds in increments of 1 second. Set via the front panel or the NIM communications

unit. Default is 25.0 seconds.

4.4.2 Undervoltage trip

4.4.2.1 Pickup - 1 to 600 volts in increments of 1 and DISABLED. Set via the front panel or the NIM communications

unit. Default is DISABLED. Connection to a NIM is necessary for this function to be enabled.

4.4.2.2 Trip time - 0.1 to 25.0 seconds in increments of 1 second. Set via the front panel or the NIM communications

unit. Default is 25.0 seconds.

Courtesy of NationalSwitchgear.com

IB 6.1.2.8-1B

Page 8

ABB

5. MPS-C 2000 SETUP INSTRUCTIONS

5.1 General Instructions

5.1.1 The front panel keypad consists of four directional arrow keys, a cancel key, an enter key, and an LCD

window.

5.1.2 When the MPS-C 2000 unit is connected to a power source, an initial title screen is displayed in the LCD

window.

This screen display is replaced after approximately three seconds by a setup screen.

Subsequent Main Menu screens are accessed by pressing the “E” key and the up and down keys. See section 6.

5.1.3 Each Main Menu has a Submenu, used for entering and displaying values. These are accessed by pressing

the “E” key while in the Main Menu. The up and down keys are used in the submenus to display the desired type of

values or settings and the “E” key is pressed again to access these. The up and down keys are then used to scroll

through the settings.

5.1.4 Pressing the “C” key in any screen will back up the display to the previous screen.

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IB 6.1.2.8-1B

Page 9 ABB

6. MENU LAYOUT

6.1 The following layout shows the Main Menus and submenus accessed by pressing the “E” key and the up and

down arrows. To exit the submenus to return to the Main Menu, the “C” key should be pressed.

For layouts of the submenus, refer to sections 6.2 through 6.5.

MPS-C-2000

Version 1.0

Ia: ## Ib: ##

Ic: ## In: ##

====MAIN MENU====

Metering Menu

====MAIN MENU====

Show Settings

====MAIN MENU====

Change Settings

====MAIN MENU====

Records Menu

INITIAL SCREEN

Press "E" (or wait 3 seconds)

Press "E"

Press "Up and Down

Arrows"

===METER MENU===

Load Values

Press "E"

=SETTINGS MENU=

MPS Settings

Press "E"

==CHANGE MENU==

MPS Settings

Press "E"

=RECORDS MENU=

MPS Fault Event

Press "E"

SUBMENUS

See sec 6.2

See sec 6.3

See sec 6.4

See sec 6.5

This screen is displayed

when unit has power and

MPS-C-2000 screen has

"timed out"

Press "Up and Down

Arrows"

Press "Up and Down

Arrows"

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IB 6.1.2.8-1B

Page 10

ABB

===METER MENU===

Load Values

SUBMENU

==LOAD VALUES==

Ia: ###

Press "E"

Ib: ###

Ic: ###

In: ###

Van: ###

Vbn: ###

Vcn: ###

Vab: ###

Vbc: ###

Vca: ###

KW3p: ###

KVAr3p:###

KVA3p: ###

KWHr3p: ###

KVarHr3p: ###

PF: ###

Freq: N/A

Scroll up and down

using arrow keys

These

values will

not be

displayed if a

VIM is not

attached

===METER MENU===

Demand Values

Press

"Up and

Down"

Arrows

=DEMAND VALUES=

Ia: ###

Press "E"

Ib: ###

Ic: ###

In: ###

KW3p: ###

KVAr3p: ###

KWHr3p: ###

KVarHr3p: ###

These

values will

not be

displayed if a

VIM is not

attached

Press "C"

6.2 METERING SUBMENU

KEYPAD INPUT SEQUENCE FOR METERING SUBMENU

Ia: ## Ib: ##

Ic: ## In: ##

C E

==LOAD VALUES==

Ia: ###

=DEMAND VALUES=

Ia: ###

===METER MENU===

Demand Values

Default

screen

display

Press keys in this sequence to access metering submenus.

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