GE MULTILIN 269 MOTOR MANAGEMENT RELAY Series Instruction Manual

269

MOTOR MANAGEMENT RELAY

Instruction Manual

Firmware Rev.: 269P.D6.0.4

Manual P/N: 1601-0013-D3
Copyright 1999 GE Multilin

®

CANADA

215 Anderson Avenue, Markham, Ont., L6E 1B3
Tel: [phone] Fax: [phone]
Internet: http://www.ge.com/edc/pm

TABLE OF CONTENTS

1 INTRODUCTION

1.1 Motor Protection Requirements................1-1

1.2 269 Relay Features..................................1-1

1.3 Typical Applications.................................1-1

1.4 Order Code/Information..........................1-3

1.5 Technical Specifications...........................1-4

2 INSTALLATION

2.1 Physical Dimensions...............................2-1

2.2 Mounting.................................................2-6

2.3 External Connections...............................2-6

2.4 Control Power........................................2-12

2.5 Phase CT Inputs....................................2-12

2.6 Ground CT Input....................................2-15

2.7 Trip Relay Contacts...............................2-15

2.8 Alarm Relay Contacts............................2-16

2.9 Auxiliary Relay #1 Contacts...................2-16

2.10 Auxiliary Relay #2 Contacts.................2-16

2.11 RTD Sensor Connections.....................2-17

2.12 Emergency Restart Terminals..............2-18

2.13 External Reset Terminals.....................2-18

2.14 Analog Output Terminals

(Non-Isolated)......................................2-18

2.15 Programming Access Terminals...........2-18

2.16 Display Adjustment..............................2-19

2.17 Front Panel Faceplate..........................2-19

2.18 269 Drawout Relay..............................2-19

2.19 Meter Option Installation......................2-23

3 SETUP AND USE

3.1 Controls and Indicators............................3-2

3.2 269 Relay Display Modes........................3-6

3.3 ACTUAL VALUES Mode..........................3-6

3.3a Starts/Hour Timer...............................3-16

3.3b Time Between Starts Timer..................3-16

3.3c Cause of Last Trip................................3-16

3.3d Cause of Last Event.............................3-16

3.4 SETPOINTS Mode.................................3-16

3.5 HELP Mode..........................................3-41

3.6 TRIP/ALARM Mode...............................3-41

3.7 Phase CT and Motor Full Load Current

Setpoints..............................................3-44

3.8 Acceleration Time Setpoint....................3-44

3.9 Inhibits..................................................3-44

3.10 Unbalance Setpoints............................3-45

3.11 Ground Fault (Earth Leakage)

Setpoints............................................ 3-46

3.12 Undercurrent Setpoints........................3-49

3.13 Rapid Trip / Mechanical Jam Setpoints3-49

3.14 Short Circuit Setpoints.........................3-50

3.15 Immediate Overload Alarm Level

Setpoint...............................................3-50

3.16 Stator RTD Setpoints...........................3-50

3.17 Other RTD Setpoints............................3-51

3.18 Overload Curve Setpoints....................3-51

3.19 Thermal Capacity Alarm......................3-55

3.20 Thermal Memory.................................3-55

3.21 Emergency Restart..............................3-56

3.22 Resetting The 269 Relay......................3-57

3.23 269 Relay Self-Test..............................3-57

3.24 Statistical Data Features.....................3-58

3.25 Factory Setpoints................................3-58

3.26 Meter Option.......................................3-58

4 TESTING

4.1 Primary Injection Testing.........................4-1

4.2 Secondary Injection Testing.....................4-1

4.3 Phase Current Input Functions................4-1

4.4 Ground Fault Current Functions..............4-4

4.5 RTD Measurement Tests.........................4-4

4.6 Power Failure Testing..............................4-5

4.7 Analog Current Output............................4-5

4.8 Routine Maintenance Verification.............4-5

4.9 Dielectric Strength (Hi-Pot) Test...............4-5

5 THEORY OF OPERATION

5.1 Hardware................................................5-1

5.2 Firmware.................................................5-1

6 APPLICATION EXAMPLES

6.1 269 Relay Powered from One of Motor

Phase Inputs..........................................6-1

6.2 Loss of Control Power Due to Short Circuit

or Ground Fault......................................6-1

6.3 Example Using FLC Thermal Capacity

Reduction Setpoint.................................6-1

APPENDIX A

269 UNBALANCE EXAMPLE........................A-1

APPENDIX B

269 Thermal Model.......................................B-1

269 RTD Bias Feature...................................B-2

APPENDIX C

269 RTD Circuitry.........................................C-1

APPENDIX D

2φ CT Configuration......................................D-1

APPENDIX E

Asymmetrical Starting Current......................E-1

APPENDIX F

269 Do's and Don'ts Checklist.......................F-1

APPENDIX G

Ground Fault and Short Circuit Instantaneous

Elements...............................................G-1

APPENDIX H

I. 269 CT Withstand......................................H-1

II. CT Size and Saturation.............................H-1

APPENDIX I

269 Commissioning Summary.......................I-1

i

GLOSSARY

TABLE OF CONTENTS

ii

1 INTRODUCTION

1.1 Motor Protection Requirements

Three phase AC motors have become standard in
modern industry. These motors are generally rugged
and very reliable when used within their rated limits.
Newer motors, however, tend to be designed to run
much closer to these operational limits and thus, there
is less margin available for any type of abnormal sup­ply, load, or operating conditions.

In order to fully protect these motors, a modern protec­tive device is required. Accurate stator and rotor ther­mal modeling is necessary to allow the motor to
operate within its thermal limits and still give the maxi­mum desired output. As well, other features can be
incorporated into a modern relay to fully protect the
motor, the associated mechanical system, and the
motor operator from all types of faults or overloads.

Motor thermal limits can be exceeded due to increased
current from mechanical overloads or supply unbal­ance. Unbalance can greatly increase heating in the
rotor because of the large negative sequence current
components present during even small voltage unbal­ances. A locked or stalled rotor can cause severe
heating because of the associated large currents drawn
from the supply. Many motor starts over a short period
of time can cause overheating as well. Phase-to-phase
and phase-to-ground faults can also cause damage to
motors and hazards to personnel. Bearing overheating
and loss of load can cause damage to the mechanical
load being driven by the motor.

The ideal motor protection relay should monitor the
rotor and stator winding temperatures exactly and shut
off the motor when thermal limits are reached. This
relay should have an exact knowledge of the tempera­ture and proper operating characteristics of the motor
and should shut down the motor on the occurrence of
any potentially damaging or hazardous condition.

The GE Multilin Model 269 Motor Management Relay
uses motor phase current readings combined with sta­tor RTD temperature readings to thermally model the
motor being protected. The relay also monitors the
motor and mechanical load for faults and problems.
With the addition of a GE Multilin meter (MPM), the
269 may also monitor voltages and power and perform
several protection functions based on these values.

alphanumeric display. A built-in "HELP" function can
instruct the user on the proper function of each of the
programming keys and on the meaning of each dis­played message.

One 269 relay is required per motor. Phase and
ground fault currents are monitored through current
transformers so that motors of any line voltage can be
protected. The relay is used as a pilot device to cause
a contactor or breaker to open under fault conditions;
that is, it does not carry the primary motor current.

All setpoints are stored in the 269 non-volatile memory
within the relay. Thus, even when control power is re­moved from the 269, all relay setpoints and pre-trip
values will remain intact.

The 269 can provide one of various output signals for
remote metering or programmable controller attach­ment. Analog signals of motor current as a percentage
of full load, hottest stator RTD temperature, percentage
of phase CT secondary current, motor thermal capac­ity, or bearing temperature are available by simple field
programming. A total of four output relays are provided
on the 269, including a latched trip relay, an alarm re­lay, and two auxiliary relays. All output relays may be
programmed via the keypad to trip on specific types of
faults or alarms.

When an output relay becomes active, the 269 will dis­play the cause of the trip, and if applicable, the lock-out
time remaining. Pre-trip values of average and individ­ual line motor current, unbalance, ground fault current,
and maximum stator RTD temperature are stored by
the 269 and may be recalled using the keypad.

The correct operation of the GE Multilin 269 relay is
continually checked by a built-in firmware self-test rou­tine. If any part of the relay malfunctions under this
self-test, an alarm indication will tell the operator that
service is required.

®

1.3 Typical Applications

The many features of the 269 make it an ideal choice
for a wide range of motor protection applications. Ver­satile features and controls allow the relay to protect
associated mechanical equipment as well as the motor.
The 269 should be considered for the following and
other typical uses:

1.2 269 Relay Features

The GE Multilin Model 269 Motor Management Relay
is a modern microcomputer-based product designed to
provide complete, accurate protection for industrial
motors and their associated mechanical systems. The
269 offers a wide range of protection, monitoring, and
diagnostic features in a single, integrated package. All
of the relay setpoints may be programmed in the field
using a simple 12-position keypad and 48 character

1. Protection of motors and equipment from operator
abuse.

®

2. Protection of personnel from shock hazards due to
winding shorts or earth leakage current from
moisture.

3. Protection of gears, pumps, fans, saw mills, cut­ters, and compressors from mechanical jam.

1-1

1 INTRODUCTION

Table 1-1 Model 269 Relay Features

Protection Features

-Overloads

-Stator Winding Overtemperature (Alarm, High Alarm and Trip)

-Multiple Starts

-Short Circuit

-Locked Rotor

-Rapid Trip/Mechanical Jam

-Unbalance/Single Phasing

-Ground Fault (Alarm and Trip)

-Bearing Overtemperature (Alarm and Trip)

-Undercurrent (Alarm and Trip)

-Variable Lock-Out Time

- Phase Reversal (Meter Option)

Operational Features

-Microcomputer controlled

-Keypad programmable

-48 character alphanumeric display

-Built-in "HELP" function

-Eight selectable standard overload curves

-Continual relay circuitry self-check

Monitoring and Display Features

-Negative sequence phase current unbalance measurement

-Ground fault (earth leakage) current measurement

-Up to six stator RTD inputs

-Two additional RTD inputs

-Monitoring of motor ambient air temperature

-Display of all SETPOINTS or ACTUAL VALUES upon request

-Display of relay TRIP/ALARM and HELP messages

Communications and Control Features

-One latched, main trip relay

-One alarm relay

-Two auxiliary relays

-Emergency restart capability

-Pre-trip alarm warnings

-4-20mA output of motor current as a percentage of full load, motor thermal capacity, hottest stator RTD tem­perature, percentage of phase CT secondary current, or bearing RTD

Statistical and Memory Features

-Recall of all pre-trip motor values

-Tamperproof setpoints stored in non-volatile memory

-Microcomputer "learns" motor inrush current

-Accumulation of motor running hours

Voltage and Power Metering (available with MPM)

-Display of 3 phase or line voltages, kWatts, kVars, Power Factor, and frequency.

-Protection features based on Voltage, Power Factor, kVars, and voltage sensed phase reversals.

-Pre-trip values of average voltage, kWatts, kVars, Power Factor, and frequency.

-Accumulated MegaWattHours.

4. Protection for loss of suction for pumps or loss of
air flow for fans using the undercurrent feature.

5. Protection of motor and load bearings from exces­sive heat buildup due to mechanical wear.

6. Protection of motors operated in environments with
varying ambient temperatures.

7. Complete protection, allowing maximum motor
utilization with minimum downtime, for all AC mo­tors.

1-2

1.4 Order Code/Information

1 INTRODUCTION

The model 269 relay is almost entirely field program­mable. The information shown above must be speci­fied when the relay is ordered, as these options are not
selectable in the field. Additional features can be made
available on special order by contacting the GE Multilin
factory.

** See Glossary for definitions

* CT information, failsafe code, and contact ar-

rangement must be specified for drawout relays
only; on standard 269's these features are field
selectable.

1-3

1 INTRODUCTION

1.5 Technical Specifications

Phase Current Inputs

conversion: calibrated RMS, sample time 2ms
range: 0.05 to 12 × phase CT primary amps set-

point
full scale: 12 × phase CT primary amps setpoint
accuracy: ± 0.5% of full scale

(0.05 to 2 × phase CT primary amps set-

point)

± 1.0% of full scale

(over 2 × phase CT primary amps set-

point)
Frequency: 20–400 Hz

Ground Fault Current Input

conversion: calibrated RMS, sample time 2ms
range: 0.1 to 1.0 × G/F CT primary amps set-

point (5 Amp secondary CT)

1.0 to 10.0 amps 50:0.025A (2000:1 ratio)

full scale: 1 × G/F CT primary amps setpoint

(5 Amp secondary CT)

10 amps (2000:1 CT)
accuracy: ± 4% of G/F CT primary amps setpoint

(5 Amp secondary CT)

± 0.3 amps primary (2000:1 CT)
Frequency: 20–400 Hz

Overload Curves

curves: 8 curves fixed shape
trip time accuracy: ± 1 sec. up to 13 sec.

± 8% of trip time over 13 sec.

detection level: ± 1% of primary CT amps

Unbalance

display accuracy:± 2 percentage points of true negative

sequence unbalance (In/Ip)

Running Hours Counter

accuracy: ± 1%

Relay Lock-out Time

accuracy: ± 1 minute with control power applied

± 20% of total lock-out time with no con-

trol power applied

Trip/Alarm Delay Times

accuracy: ± 0.5 sec. or 2% of total time, whichever

is greater with the exception of:

1. "INST."setpoints: 20–45ms

2. Ground Fault 0.5 Second delay: +/­150 msec.

3. Ground Fault 250 msec delay: +75
msec, -150 msec.

4. Metering setpoints (Page 7): +/- 1.5sec
or 2% of total time

RTD Inputs

sensor types: 10 OHM copper

100 OHM nickel
120 OHM nickel

100 OHM platinum
(specified with order)
display accuracy: ± 2 C
trip/alarm setpoint range: 0-200 °C
dead band: 3 C
maximum lead resistance:25% of RTD 0 °C resistance

Analog Current Output (4-20 mA standard)

PROGRAMMABLE
OUTPUT 0-1 mA 0-20 mA 4-20 mA
MAX LOAD

2000 Ω 300 Ω 300 Ω

MAX OUTPUT 1.01 mA 20.2 mA 20.2 mA

accuracy: ± 1% of full scale reading
polarity: terminal 58 ("-") must be at

ground potential (i.e. output is

not isolated)
Isolation: non-isolated, active source
Update Time: 250 ms max.

Communications

Type: RS485 2-wire, half duplex, isolated
Baud Rate: 300, 1200, 2400
Protocol: Subset of Modbus® RTU
Functions: Read/write setpoints (03/16),

Read actual values (03/04)

Relay Contacts

VOLTAGE

30 VDC 10 30 10

RESISTIVE 125 VDC 10 30 0.5

250 VDC 10 30 0.3

30 VDC 10 30 5
INDUCTIVE 125 VDC 10 30 0.25
(L/R=7ms) 250 VDC 10 30 0.15
RESISTIVE 120 VAC 10 30 10

250 VAC 10 30 10

INDUCTIVE 120 VAC 10 30 4

PF=0.4 250 VAC 10 30 3
CONFIGURATION FORM C NO/NC
CONTACT MATERIAL SILVER ALLOY
MINIMUM PERMISSIBLE LOAD 5 VDC, 100 mA

MAKE/CARRY

CONTINUOUS

MAKE/CARRY

0.2 sec

12 VAC, 100 mA

BREAK

Switch Inputs

Type: dry contacts

Differential Relay Input

relay response time: 100 msec. maximum (contact

closure to output relay activation)

1-4

1 INTRODUCTION

CT Burden Due to Connection of 269 Relay

CT INPUT BURDEN

(AMPS) (VA)

1 0.04 43

PHASE CT 4 0.5 31

(1A) 13 4.8 28

5 0.06 2.4

PHASE CT 20 1 2.5

(5A) 65 8.5 2.01

G/F CT 5 0.08 3

(5A) 10 0.3 3

G/F CT 0.025 0.435

(50:0.025) 0.1 3.29

0.5 50

CT Thermal Withstand

Phase CT & G/F 5 amp tap:3 × - continuous

6 × - 40 sec
12 × - 3 sec

G/F 50:0.025 mA 6 × - continuous

Control Power (Includes Tolerances)

frequency: 50/60 Hz
24 VDC, range: 20-30 VDC
48 VDC, range: 30-55 VDC
120 VAC/125 VDC, range: 80-150 VAC/VDC
240 VAC/250 VDC, range: 160-300 VAC/VDC
max. power consumption: 20 VA
Voltage low ride-through time:

100ms (@ 120VAC/125VDC)

NOTE:Relay can be powered from either AC or DC

source. If Control Power input exceeds 250 V,
an external 3A fuse must be used rated to the
required voltage.

Fuse Specifications

T3.15A H 250V
Timelag high breaking capacity

Dielectric Strength

2200 VAC, 50/60 Hz for 1 sec.
GROUND (Terminal 42) to

Output Contacts (Terminals 29 through 40)
Control Power (Terminals 41 & 43)
Current Transformer Inputs (Terminals 72
through 83)

NOTE: If Hi-Pot tests are performed, jumper J201
beside terminal 43 should be placed in the "HI­POT" position. Upon completion of Hi-Pot tests, the
jumper should be placed in the "GND" position.
See Fig. 4.3.

(mΩ)

696 Ω
329 Ω
200 Ω

Type Tests

Dielectric Strength: 2.0 kV for 1 minute to relays,

CTs, power supply
Insulation Resistance:IEC255-5,500Vdc
Transients: ANSI C37.90.1 Oscillatory 2.5kV/1MHz

ANSI C37.90.1 Fast Rise 5kV/10ns
Ontario Hydro A-28M-82
IEC255-4 Impulse/High
Frequency Disturbance

Class III Level
Impulse Test: IEC 255-5 0.5 Joule 5kV
RFI: 50 MHz/15W Transmitter
EMI: C37.90.2 Electromagnetic Interference

@ 150 MHz and 450 MHz, 10V/m
Static: IEC 801-2 Static Discharge
Humidity: 95% non- condensing
Temperature: -25°C to +60°C ambient
Environment: IEC 68-2-38 Temperature/Humidity

Cycle
Dust/Moisture: NEMA 12/IP53

Ambient Temperature and Storage Temperature

-25°C to +60°C

Packaging

Shipping box: 11.40" x 7.50" x 16.00" (WxHxD)

290mm x 190mm x 410mm (WxHxD)

Ship weight: 3.5 kg

7.75 lb.

269 Plus drawout:
Shipping box: 13.25" x 12.50" x 20.50" (LxHxD)

340mm x 320mm x 520mm

Ship weight: 12 kg

26.4 lb.

Certifications

ISO: Manufactured to an ISO9001 certified program
UL: UL recognized under E83849
CSA: Approved under LR41286
CE: Conforms to IEC 947-1, IEC 1010-1
Overvoltage Category: II
Pollution Degree: 2
IP Code: 40X

Note: 269 Drawout does not meet CE compliance.

WARNING:HAZARD may result if the product is

not used for intended purposes.
This equipment can only be serviced
by trained personnel.

1-5

1 INTRODUCTION
MPM OPTION SPECIFICATIONS

PHASE CURRENT INPUTS

Conversion: true rms, 64 samples/cycle
CT input: 1A & 5A secondary
Burden: 0.2 VA
Overload: 20xCT for 1s, 100xCT for 0.2s
Range: 1-150% of CT pri
Frequency: up to 32nd harmonic
Accuracy: ± 1% of display

VOLTAGE INPUTS

Conversion: true rms, 64 samples/cycle
VT pri/Sec: direct or 120-72000:69-240
Input range: 20-600 VAC
Full scale: 150/600 VAC autoscaled
Frequency: up to 32nd harmonic
Accuracy: ± 1% of display

ANALOG OUTPUTS

MAX LOAD
MAX OUTPUT 1.1 mA 21 mA

0-1 mA (T1 Option) 4-20 mA (T20 Option)

2400 Ω 600 Ω

Accuracy: ±2% of full scale reading
Isolation: 50V isolated, active source

MEASURED VALUES

OUTPUT

EMI: C37.90.2 Electromagnetic Inter-

ference @ 150 MHz and 450

MHz, 10V/m
Static: IEC 801-2 Static Discharge
Humidity: 95% non-condensing
Temperature: -10°C to +60°C ambient
Environment: IEC 68-2-38 Tempera-

ture/Humidity Cycle
Dust/moisture: NEMA 12/IP53

PACKAGING

Shipping box: 8½" × 6" × 6" (L×H×D) 215cm ×

152cm × 152 cm (L×H×D)

Ship weight: 5 lbs/2.3 kg

CERTIFICATION

ISO: Manufactured to an ISO9001 certified

program
UL: Recognized under E83849
CSA: Recognized under LR41286

Note: It is recommended that all relays be powered
up at least once per year to avoid deterioration of
electrolytic capacitors in the power supply.

Due to updating technology, specifications may be improved with­out notice.

PARAMETER ACCURACY (%

OF FULL SCALE)

VOLTAGE ±0.2% 20% TO 100% OF VT
kW ±0.4% 0-999,999.99 kW
kVar ±0.4% 0-999,999.99 kVar
kVA ±0.4% 0-999,999.99 kVA
kWh ±0.4% 0-999,999,999 kWh
PF ±1.0% ±0.00-1.00
FREQUENCY ±0.02Hz 20.00-70.00 Hz

RANGE

CONTROL POWER

Input: 90 – 300 VDC or

70 – 265 VAC, 50/60 Hz

Power: nominal 10VA

maximum 20VA

Holdup: 100 ms typical (@ 120 VAC/125

VDC)

TYPE TESTS

Dielectric strength: 2.0 kV for 1 minute to relays,

CTs, VTs, power supply
Insulation resistance: IEC255-5,500Vdc
Transients: ANSI C37.90.1 Oscillatory

2.5kV/1MHz

ANSI C37.90.1 Fast Rise

5kV/10ns

Ontario Hydro A-28M-82

IEC255-4 Impulse/High

Frequency Disturbance

Class III Level
Impulse test: IEC 255-5 0.5 Joule 5kV
RFI: 50 MHz/15W Transmitter

1-6

2.1 Physical Dimensions

2 INSTALLATION

The 269 relay is contained in a compact plastic and
metal housing with the keypad, display, and all
indicators located on the front panel. The physical
dimensions of the 269 unit are given in Figure 2.1.

GE Multilin also provides phase and ground fault CTs
if required. Dimensions for these are shown in Figure

2.2a, Figure 2.2b, Figure 2.2c, and Figure 2.2d.
Dimensions of a are for 100:5 to 1000:5 phase CT's;
for the dimensions of 50:5 and 75:5 CT's, consult
factory.

Note

:

Figure 2.1

Physical Dimensions

2-1

2 INSTALLATION

2-2

Figure 2.2a

Phase CT Dimensions

2 INSTALLATION

Figure 2.2b

Ground CT (50:0.025) 3” and 5” window

2-3

2 INSTALLATION

2-4

Figure 2.2c

Ground CT (50:0.025) 8” window

2 INSTALLATION

Figure 2.2d

Ground CT (x:5) Dimensions

2-5

2 INSTALLATION

2.2 Mounting

The 269 should be positioned so that the display is
visible and the front panel keypad is accessible. A
cut-out is made in the mounting panel and the unit is
mounted as shown in Figure 2.3. Four washers and
10-32 × 3/8" mounting screws are provided.

Although the 269 circuitry is internally shielded, to
minimize noise pickup and interference the relay
should be placed away from high current conductors
or sources of strong magnetic fields. Connections to
the relay are made through terminal blocks and CTs
located on the rear of the unit.

2.3 External Connections

The connections made to the 269 relay will vary
depending on the programming of the unit. It is not
necessary to use all of the connections provided; a
minimal configuration would include supply power,
three phase current CT inputs and the Trip relay
contacts wired in series with the contactor control
relay or circuit breaker shunt trip coil. Connections to
these and the other terminals outlined below will be
explained in the following sections.

2-6

Figure 2.3

Relay Mounting

Figure 2.4, Figure 2.6, and Figure 2.7 show typical
connections to the 269 relay.

NOTE: The rear of the 269 relay shows output relay
contacts in their power down state. Figure 2.4, Figure

2.6, and Figure 2.7 show output relay contacts with
power applied, no trips or alarms, Factory
Configurations, i.e. TRIP - fail-safe, ALARM - non-fail­safe, AUX.1 - non-fail-safe, AUX.2 - fail-safe). See
Figure 2.5 for a complete list of all possible output
relay contact states. See SETPOINTS page 5 for a
description of the RELAY FAILSAFE CODE.

2 INSTALLATION

Table 2-1

Inputs

-Supply Power L(+), G, N(–) - universal AC/DC
supply

-Phase CTs

-Ground Fault CTs (core balance CT)

-6 Stator RTDs

-2 additional RTDs

-Emergency Restart keyswitch

-External Reset pushbutton

-Programming Access jumper or keyswitch

-Meter Communication Port

Outputs

-4 Sets of Relay Contacts (NO/NC)

-Programmable Analog Current Output Terminals

WARNING: HAZARD may result if the product is

269 External Connections

not used for intended purposes. This
equipment can only be serviced by
trained personnel.

2-7

2 INSTALLATION

2-8

Figure 2.4

Relay Wiring Diagram (AC Control Power)

2 INSTALLATION

Figure 2.5

WARNING: In locations where system voltage
disturbances cause voltage levels to dip below the
range specified in the Specifications (1.5), any relay
contact programmed failsafe may change state.
Therefore, in any application where the "process" is
more critical than the motor, it is recommended that
the trip relay contacts be programmed non-failsafe. In
this case, it is also recommended that the AUX2

Output Relay Contact States

contacts be monitored for relay failure. If, however,
the motor is more critical than the "process," then the
trip contacts should be programmed failsafe.

2-9

2 INSTALLATION

2-10

Figure 2.6

Relay Wiring Diagram (Two Phase CTs)

2 INSTALLATION

Figure 2.7

Relay Wiring Diagram (DC Control Power)

2-11

2 INSTALLATION

2.4 Control Power

The relay is powered on using any one of four
different switching power supplies: 120-125
VAC/VDC, 240-250 VAC/VDC, 48 VDC, or 24 VDC.
The first two versions have been designed to work
with either AC or DC control power. Maximum power
consumption for the unit is 20 VA.

The 269 will operate properly over a wide range of
supply voltages typically found in industrial
environments (see control power specifications in
section 1.5). When the supply voltage drops below
the minimum, the output relays will return to their
power down states but all setpoints and statistical
data will remain stored in the relay memory. Motor
lock-out time will be adhered to with or without control
power applied. If control power is removed, the relay
keeps track of the Motor Lockout time for up to an
hour.

Control power must be applied to the 269 relay, and
the relay programmed, before the motor is energized.
Power is applied at terminals 41, 42, and 43 which
are terminal blocks having #6 screws.

Note: Chassis ground terminal 42 must be
connected directly to the dedicated cubicle
ground bus to prevent transients from damaging
the 269 resulting from changes in ground
potential within the cubicle. Terminal 42 must be
grounded for both AC and DC units for this
reason.

Verify from the product identification label on the back
of the relay that the control voltage matches the
intended application. Connect the control voltage
input to a stable source of supply for reliable
operation. A 3.15A, slow blow mini fuse (see Fuse
Specifications in Technical Specifications) is
accessible from the back of the 269 by removing the
perforated cover. See Figure 2.8 for details on
replacing the fuse. Using #10 gauge wire or ground
braid, connect terminal 42 to a solid ground which is
typically the copper ground bus in the switchgear.
Extensive filtering and transient protection is built into
the 269 to ensure reliable operation under harsh
industrial operating environments. Transient energy
must be conducted back to the source through filter
ground. The filter ground is separated from the safety
ground terminal 42 at jumper J201 on the back of the
relay to allow dielectric testing of a switchgear with a
269 wired up. Jumper J201 must be removed during
dielectric testing. It must be put back in place once
the dielectric testing is done.

When properly installed, the 269 will meet the
interference immunity requirements of IEC 1000-4­3/EN61000-4-3; EN 61000-4-6. It also meets the
emission requirements of IEC CISPR11/EN55011
and EN50082-2.

2.5 Phase CT Inputs

One CT for each of the three motor phases is
required to input a current into the relay proportional
to the motor phase current. The phase sequence
must be as shown in Figure 2.4 and Figure 2.7. The
CTs used can have either a 1 amp or 5 amp
secondary and should be chosen so that the motor
full load current is between 75 and 95 percent of the
rated CT primary amps. The CT ratio should thus be
of the form n:1 or n:5 where n is between 20 and

1500. The ratio of the CT used must be programmed
into the 269 (see section 3.7).

The CT connections to the relay are made between
the ":1" and "COM" terminals for 1 amp CTs or
between the ":5" and "COM" terminals for CTs with a
5 amp secondary.

The connections to the 269 internal phase CTs are
made directly via #10 screws.

CTs should be selected to be capable of supplying
the required current to the total secondary load which
includes the 269 relay burden of 0.1 VA at rated
secondary current and the connection wiring burden.
The CT must not saturate under maximum current
conditions which can be up to 8 times motor full load
during starting or up to 20 times during a short circuit.
Only CTs rated for protective relaying should be used
since metering CTs are usually not rated to provide
enough current during faults. Typical CT ratings are:

CSA (Canada): Class10L100 10=accuracy,

L=protection,
100=capacity, higher is
better

ANSI (USA): Class C 100 B4 C or T=protection,

100=capacity, higher is
better, B4=accuracy

IEC (Europe): 20 VA Class 5P20 P=protection,

20VA=capacity, higher is
better

Refer to Appendix H for details on CT withstand, CT
size and saturation, as well as the safe use of 600V
class window type CTs on a 5 kV circuit.

2-12

4

3

2 INSTALLATION

NOTES

REMOVE CONTROL POW ER FROM THE RELAY

BEFORE ATTEMPTING TO CHANGE THE FUSE.

WARNING :

CAUTION

CAUTION

ENSURE THAT THE PERFORATED COVER CLEARS ALL COMPONENTS

WHEN BEING RE-INSTALLED.

FOR DRAW OUTS, CONTACT THE FACTORY.

THIS PROCEDURE DOES NOT APPLY TO 269/269Plus DRAWOUT VERSIONS.

CAUTION

AND COMPLETELY PLUG GED IN THE MATING 968023A2.DWG

ENSURE THAT POWER SUPPLY PCB IS FIRM LY IN PLACE

CONNECTOR.

CAUTION

SWITCHGEAR PANEL

CAUTION

1

2

PROCEDURE

REMOVING FUSE:

REPLAC ING FU SE:4IN TECHNICAL SPECIFICATIONS.

USE MINI CARTRIDGE FUSE 3.15A/250V. SEE FUSE SPECIFIC ATIO NS

USING A FUSE PULLER, REMOVE THE FUSE FRO M HO LDER.

REMOVE PER FORATED COVER BY U NSCREW ING THE (4)- #8 -32 SCREW S.

REMOVING PERFOR ATED COVER:

1

REMOVE PO WER SUPPLY BY UNSCREW ING THE (4)- #8 -32 x 3/8" LG. STAND OFFS

& UNPLUGG ING THE INTERBOARD CONN ECTO R.

REMOVING POW ER SUPPLY PCB:

THIS PROCEDURE APPLIES TO 269/269Plus RELAYS

WITH REVISION "C" ONLY.

C = REVISION "C" UNITS.

EXAMPLE: SERIAL N O. C5261392

2

3

POSITION THE FUSE IN THE PULLER AND PLACE BACK IN FUSE HOLDER.

PERFORATED COVER & SCREWS.

RE-INSTALL POWER SUPPLY PCB, STA NDOFFS,

5

6

Figure 2.8

Replacing a blown fuse

2-13

2 INSTALLATION

SHIELDED

CABLE

Figure 2.9a

Core Balance Ground CT Installation using Shielded Cable

UNSHIELDED

CABLE

2-14

Figure 2.9b

Core Balance Ground CT Installation using Unshielded Cable

2 INSTALLATION

2.6 Ground CT Input

All current carrying conductors must pass through a
separate ground fault CT in order for the ground fault
function to operate correctly. If the CT is placed over
a shielded cable, capacitive coupling of phase current
into the cable shield during motor starts may be
detected as ground current unless the shield wire is
also passed through the CT window; see Figure 2.9a.
If a safety ground is used it should pass outside the
CT window; see Figure 2.9b.

The connections to the 269 internal ground CT are
made directly via #10 screws. The ground CT is
connected to terminals 73 and 72 for a 5 amp
secondary CTs, or to terminals 73 and 74 for a GE
Multilin 50:0.025A (2000:1 ratio) CTs, as shown in
Figure 2.4, Figure 2.5, and Figure 2.7. The polarity of
the ground CT connection is not important. It is
recommended that the two CT leads be twisted
together to minimize noise pickup. If a 50:0.025A
(2000:1 ratio) ground CT is used, the secondary
output will be a low level signal which allows for
sensitive ground fault detection.

NOTE: The GE Multilin 2000:1 CT is actually a
50:0.025A CT recommended for resistance
grounded systems where sensitive ground fault
detection is required. If higher levels are to be
detected, a 5 Amp secondary CT should be used.

For a solidly grounded system where higher ground
fault currents will flow, a 5 amp secondary CT with a
primary between 20 and 1500 A may be used to
surround all phase conductors. The phase CTs may
also be residually connected to provide ground
sensing levels as low as 10% of the phase CT
primary rating. For example, 100:5 CTs connected in
the residual configuration can sense ground currents
as low as 10 amps (primary) without requiring a
separate ground CT. This saves the expense of an
extra CT, however 3 phase CTs are required. If this
connection is used on a high resistance grounded
system verify that the ground fault alarm and trip
current setpoints are below the maximum ground
current that can flow due to limiting by the system
ground resistance. Sensing levels below 10% of the
phase CT primary rating is not recommended for
reliable operation.

2.7 Trip Relay Contacts

The main control relay or shunt trip coil of the motor
starter or circuit breaker should be connected to the
Trip relay contacts of the 269. These contacts are
available as normally open (NO), normally closed
(NC), and can switch up to 10 amps at either 250
VAC or 30 VDC with a resistive load. Silver cadmium
oxide contacts are used because of their ability to
handle high inrush currents on inductive loads.
Contact GE Multilin if these contacts are to be used
for carrying low currents since they are not
recommended for use below 0.1 amps. Connection to
the motor contactor or breaker is shown in Figure 2.4,
Figure 2.5, and Figure 2.7.

The Trip output relay will remain latched after a trip.
This means that once this relay has been activated it
will remain in the active state until the 269 is manually
reset. The Trip relay contacts may be reset by
pressing the RESET key (see section 3.1) if motor
conditions allow, or by using the Emergency Restart
feature (see section 2.12), or the External Reset
terminals, or by remote communications via the
RS485 port.

The Trip relay may be programmed to be fail-safe or
non-fail-safe. When in the fail-safe mode, relay
activation or a loss of power condition will cause the
relay contacts to go to their power down state. Thus,
in order to cause a trip on loss of power to the 269,
output relays should be programmed as fail-safe.

The Trip relay cannot be reset if a lock-out is in effect.
Lock-out time will be adhered to regardless of
whether control power is present or not. A maximum
of one hour lockout time is observed if control power
is not present.

The Trip relay can be programmed to activate on any
combination of the following trip conditions: overload,
stator RTD overtemperature, rapid trip, unbalance,
ground fault, short circuit, RTD overtemperature,
acceleration time, number of starts per hour, single
phase (see section 3.4 for factory preset
configurations).

Connections to the Trip relay contacts are made via a
terminal block which uses #6 screws.

When the phase CTs are connected residually, the
secondaries must be connected in such a way to
allow the 269 to sense any ground current that might
be flowing. To correctly display ground current and
trip or alarm on ground fault, the connection to the
269 must be made at terminals 72 and 73 as shown
in Figure 2.4 and Figure 2.7. These terminals are
designed to accept input from a 5A secondary CT.
The 269 must also be programmed for a 5A
secondary ground CT with the primary being equal to
the phase CT primary. This is done in SETPOINTS,
page 1.

NOTE: The rear of the 269 relay shows output relay
contacts in their power down state. Figure 2.4, Figure

2.6, and Figure 2.7 show output relay contacts with
power applied, no trips or alarms, and Factory
Configurations in effect (i.e. TRIP - fail-safe, ALARM ­non-fail-safe, AUX.1 - non-fail-safe, AUX.2 - fail-safe).
See Figure 2.5 for a list of all possible contact states.

WARNING: In locations where system voltage
disturbances cause voltage levels to dip below
the range specified in the Specifications (1.5), any
relay contact programmed failsafe may change

2-15

2 INSTALLATION

state. Therefore, in any application where the
"process" is more critical than the motor, it is
recommended that the trip relay contacts be
programmed non-failsafe. In this case, it is also
recommended that the AUX2 contacts be
monitored for relay failure. If, how ever, the motor
is more critical than the "process" then the trip
contacts should be programmed failsafe.

2.8 Alarm Relay Contacts

These contacts are available as normally open (NO),
normally closed (NC), with the same ratings as the
Trip relay but can only be programmed to activate
when alarm setpoint levels are reached. (On a
Drawout version of 269, only one set of alarm
contacts is available and the user must specify
normally open or normally closed and failsafe or non­failsafe when ordering). Thus these contacts may be
used to signal a low level fault condition prior to motor
shut-down.

Conditions which can be programmed to activate the
relay are alarm levels for the following functions:
immediate overload; mechanical jam; unbalance;
undercurrent; ground fault; stator RTD
overtemperature; RTD overtemperature; broken RTD;
low temperature or shorted RTD; and self-test alarm
(see section 3.4 for factory preset configurations).
The relay can be configured as latched or unlatched
and fail-safe or non-fail-safe.

These contacts may be used for alarm purposes or to
trip devices other than the motor contactor. For
example, the ground fault and short circuit functions
may be directed to Auxiliary relay #1 to trip the main
circuit breaker rather than the motor starter.

Connections to the relay contacts are made via a
terminal block which uses #6 screws.

NOTE: The rear of the 269 relay shows output relay
contacts in their power down state. Figure 2.4, Figure

2.6, and Figure 2.7 show output relay contacts with
power applied, no trips or alarms, and Factory
Configurations in effect (i.e. TRIP - fail-safe, ALARM ­non-fail-safe, AUX.1 - non-fail-safe, AUX.2 - fail-safe).
See Figure 2.5 for a list of all possible contact states.

2.10 Auxiliary Relay #2 Contacts

This relay provides another set of NO/NC contacts
with the same ratings as the other relays. (On a
Draw-out version of 269, only one set of Aux.2
contacts is available and the user must specify
normally open or normally closed when ordering).
This relay is different from the others in the fact that it
is permanently programmed as latched and fail-safe.

This relay may be programmed to activate on any
combination of alarm conditions (see section 3.4 for
factory preset configurations). The feature
assignment programming is thus the same as for the
Alarm relay.

Connections to the Alarm relay contacts are made via
a terminal block which uses #6 screws.

NOTE: The rear of the 269 relay shows output relay
contacts in their power down state. Figure 2.4, Figure

2.6 and Figure 2.7 show output relay contacts with
power applied, no trips or alarms, and Factory
Configurations in effect (i.e. TRIP - fail-safe, ALARM ­non-fail-safe, AUX.1 - non-fail-safe, AUX.2 - fail-safe).
See Figure 2.5 for a list of all possible contact states.

2.9 Auxiliary Relay #1 Contacts

Auxiliary relay #1 is provided to give an extra set of
NO/NC contacts which operate independently of the
other relay contacts. (On a Drawout version of 269,
only one set of Aux.1 contacts is available and the
user must specify normally open or normally closed
and failsafe or non-failsafe when ordering). This
auxiliary relay has the same ratings as the Trip relay.

Auxiliary relay #1 can be configured as latched or
unlatched and fail-safe or non-fail-safe. The
conditions that will activate this relay can be any trip
or alarm indications (see section 3.4 for factory preset
configurations).

Connections to the relay contacts are made via a
terminal block which uses #6 screws.

NOTE: The rear of the 269 relay shows output relay
contacts in their power down state. Figure 2.4, Figure

2.6, and Figure 2.7 show output relay contacts with
power applied, no trips or alarms, and Factory
Configurations in effect (i.e. TRIP - fail-safe, ALARM ­non-fail-safe, AUX.1 - non-fail-safe, AUX.2 - fail-safe).
See Figure 2.5 for a list of all possible contact states.

2-16

2 INSTALLATION

Figure 2.10

2.11 RTD Sensor Connections

Up to six resistance temperature detectors (RTDs)
may be used for motor stator temperature monitoring.
The remaining RTD inputs may be used for motor
and load bearing, or other temperature monitoring
functions. All RTDs must be of the same type. RTD
#8 may be used to monitor ambient air temperature.
This is done to enhance protection in environments
where the ambient temperature varies considerably.
The number of stator RTDs used together with RTD
trip and alarm temperatures must be programmed
into the 269 (see sections 3.16, 3.17). The RTD type
to be used must be specified when ordering the 269
relay. If the type of RTD in use is to be changed, the
269 must be returned to the factory.

Each RTD has four connections to the 269 relay as
shown in Figure 2.4, Figure 2.6, and Figure 2.7.
Since the RTD indicates temperature by the value of
its resistance, it is necessary to compensate for the
resistance of the connecting wires, which is
dependent on lead length and ambient temperature.
The 269 uses a circuit to cancel this resistance and
reads only the actual RTD resistance. Correct
operation will occur providing all three wires are of the
same length and the resistance of each lead is not
greater than 25% of the RTD 0°C resistance. This
can be accomplished by using identical lengths of the
same type of wire. If 10 ohm copper RTDs are to be
used, special care should be taken to keep the lead
resistance as low as possible.

If RTD #8 is to be used for ambient air temperature
measurement, the RTD should be placed and
mounted somewhere in the motor cooling air intake
flow. The sensor should be in direct contact with the
cooling air but not with any surface that is at a
temperature other than the cooling air. This RTD is

RTD Wiring

selected for ambient temperature use in page 5 of
SETPOINTS mode.

If no RTD sensor is to be connected to any of the
RTD terminals on the 269, the terminals may be left
open.

If fewer than 6 stator RTDs are to be employed, they
should be connected to the lowest numbered relay
RTD connections. For example, if 3 stator RTDs are
to be used they should be connected to the terminals
for RTD1, RTD2, and RTD3 (terminals #1-12). Other
RTDs should be connected to the terminals for RTD7­RTD10 (terminals #13-28) as shown in Figure 2.4.

The connections are made via terminal blocks which
can accommodate up to #16 AWG multi-strand wire.

Note: Shielded, three-wire cable must be used in
industrial environments to prevent noise pickup.
Wherever possible, the RTD leads should be kept
close to grounded metal casings and avoid areas
of high electromagnetic or radio frequency fields.
RTD leads should not run adjacent to, or in the
same conduit as high current carrying wires. It is
recommended to use a three wire shielded cable
of #18 AWG copper conductors. The shield
connection of the RTD should not be grounded at
the sensor end as there is an internal ground on
the 269. This arrangement prevents noise pickup
that would otherwise occur from circulating
currents due to differences in ground potentials
on a doubly grounded shield.

2-17

2 INSTALLATION

2.12 Emergency Restart Terminals

If it is desired to override relay trips or lock-outs and
restart the motor, a normally open keyswitch should
be installed between terminals 54 and 55.
Momentarily shorting these terminals together will
cause the thermal memory of the 269 to discharge to
0% (if RTD input to thermal memory is enabled,
thermal memory can be reduced to 0% by keeping
terminals 54 and 55 shorted together for more than
11 seconds; see section 3.20). The Emergency
Restart terminals can thus be used to override an
OVERLOAD TRIP. Shorting the Emergency Restart
terminals together will also decrement the relay's
internal starts/hour counter by 1 and therefore allow
the operator to override a STARTS/HOUR inhibit or
time between starts inhibit.

Note: This option should be used only when an
immediate restart after a lock-out trip is required for
process integrity or personnel safety. Discharging
the thermal memory of the 269 gives the relay an
unrealistic value for the thermal capacity remaining in
the motor and it is possible to thermally damage the
motor by restarting it. Thus, complete protection may
be compromised in order to restart the motor using
this feature.

A twisted pair of wires should be used. Connection to
the 269 is made via a terminal block which can
accommodate up to #16 AWG multi-strand wire.

2.13 External Reset Terminals

An external reset switch, which operates similarly to
the keypad RESET key (see section 3.1), can be
connected to terminals 56 and 57 for remote reset
operation. The switch should have normally open
contacts. Upon closure of these contacts the relay
will be reset. This external reset is equivalent to
pressing the keypad RESET key. Keeping the
External Reset terminals shorted together will cause
the 269 to be reset automatically whenever motor
conditions allow.

A twisted pair of wires should be used. Connection to
the 269 is made via a terminal block which can
accommodate up to #16 AWG multi-strand wire.

2.14 Analog Output Terminals (Non­Isolated)

Terminals 58 and 59 of the 269 are available for an
analog current output representing one of:
percentage of motor thermal capacity used; motor
current as a percentage of full load (i.e. 0.25-2.5
XFLC); hottest stator RTD temperature as a
percentage of 200°C; RTD#7 (bearing) temperature
as a percentage of 200°C; or CT secondary current

as a percentage of CT secondary amps rating. The
choice of output is selected in page 5 of SETPOINTS
mode. This selection can be made or changed at any
time without affecting the protective features of the
relay.

The output current range is factory default at 4-20
mA. However, this range may be enlarged in page 5
of SETPOINTS mode. 4 mA output corresponds to a
low scale reading (i.e. 0% thermal capacity used,

0.25xFLC, 0
RTD#7 temperature, or 0 A phase CT secondary
current). 20 mA output current corresponds to a high
scale reading (i.e. 100% thermal capacity used,

2.5xFLC or lower phase current, 200
stator RTD and RTD#7 temperature, or either 1 A or
5 A phase CT secondary depending on the CT used).

This output is an active, non isolated current source
suitable for connection to a remote meter, chart
recorder, programmable controller, or computer load.
Current levels are not affected by the total lead and
load resistance as long as it does not exceed 300
ohms for the 4-20 mA or the 0-20 mA range (2000
ohms for 0-1 mA range). For readings greater than
100% of full scale the output will saturate at 20.2 mA.

This analog output is not isolated. Terminal 58 is
internally connected to system ground. Consequently
the negative terminal of the connected load device
must be at ground potential. When isolation is
necessary, an external two-wire isolated transmitter
should be used between the 269 and the load (e.g.
PLC).

A twisted pair of wires should be used. Connection to
the 269 is made via a terminal block which can
accommodate up to #16 AWG multi-strand wire.

o

C hottest stator RTD temperature,

o

C for hottest

2.15 Programming Access Terminals

When a jumper wire is connected between ACCESS
terminals 52 and 53 all setpoints and configurations
can be programmed using the keypad. Once
programming is complete the jumper will normally be
removed from these terminals. When this is done all
actual and setpoint values can still be accessed for
viewing; however, if an attempt is made to store a
new setpoint value the message "ILLEGAL ACCESS"
will appear on the display and the previous setpoint
will remain intact. In this way all of the programmed
setpoints will remain secure and tamperproof.
Alternatively, these terminals can be wired to an
external keyswitch to permit setpoint programming
upon closure of the switch. For additional tamper
proof protection, a software access code may be
programmed on Page 6 of SETPOINTS. See section
3 (Setup and Use).

2-18

A twisted pair of wires should be used for connection
to an external switch. Connection to the 269 is made
via a terminal block which can accommodate up to
#16 AWG multi-strand wire.

2.16 Display Adjustment

Once the 269 relay has been installed and input
power applied, the contrast of the LCD display may
have to be adjusted. This adjustment has been made
at the factory for average lighting conditions and a
standard viewing angle but can be changed to
optimize the display readability in different
environments. To alter the display contrast the
trimpot on the rear of the unit marked "CONTRAST"
must be adjusted with a small slotted screwdriver.

2 INSTALLATION

thin panels, the relay will not seat properly and the
door will not shut over the relay when installed on a
thick panel. Loosening the screws and moving the
relay forward before retightening will fix the problem.

RELAY REMOVAL - Open the hinged door. Next
remove the two ten finger connecting plugs making
sure the top one is removed first. Swivel the cradle­to-case hinged levers at each end of the 269 cradle
assembly and slide the assembly out of the case.

RELAY INSTALLATION - Slide the 269 cradle
assembly completely into the case. Swivel the hinged
levers in to lock the 269 cradle assembly into the
drawout case. Install the two ten finger connecting
plugs making sure the bottom plug is installed first.
Close the hinged door and secure with the captive
screw.

2.17 Front Panel Faceplate

The front panel faceplate is composed of a
polycarbonate material that can be cleaned with
isopropyl or denatured alcohol, freon, naphtha, or
mild soap and water.

2.18 269 Drawout Relay

The model 269 relay is available in a drawout case
option. The operation of the relay is the same as
described elsewhere in this manual except for the
differences noted in this section. The physical
dimensions of the drawout relay are as shown in
Figure 2.11. The relay should be mounted as shown
in Figure 2.12.

The drawout 269 relay can be removed from service
without causing motor shut-down. This can be useful
for replacing, calibrating, or testing units.

RELAY MOUNTING - Make cutout as shown and drill
six 7/32" holes on mounting panel. Approximately 2­1/2" should be clear at the top and bottom of the
cutout in the panel for the hinged door. Ensure that
the five #6-32 nuts are removed from the threaded
studs in the mounting flange and that the drawout
chassis has been removed from the drawout case.
Install the case from the rear of the mounting panel
by aligning the five #6-32 threaded case studs to the
previously drilled holes. With the studs protruding
through the holes secure the case on the right hand
side with two #6-32 nuts provided. Install the hinged
door on the front of the mounting panel using three
#6-32 nuts provided.

NOTE: There must be at least ½" clearance on the
hinged side of the drawout relay to allow the door
to open.

IMPORTANT NOTE

relay cradle assembly the top ten finger connecting
plug must be withdrawn first. This isolates the 269
output relay contacts before power is removed from
the relay. When installing the drawout relay cradle
assembly the bottom ten finger connecting plug must
be installed first. This causes power to be applied to
the 269 relay before the output relay contacts are
placed in the circuit.

After a 269 relay cradle assembly has been removed
from the drawout case it is recommended that the
hinged door be closed in order to reduce the risk of
electric shock.

Due to the hardware configuration of the drawout
relay shorting bars, the RELAY FAILSAFE CODE
(SETPOINTS, page 5) should not be changed without
consulting the factory. Spare shorting bars are
included with each drawout specifically for the
required modification. Wiring for the 269 drawout is
shown in Figure 2.13. If it is required that any of the
output relay configurations in Figure 2.13 be different
than shown, this information must be stated when the
relay is ordered.

The 269 Drawout does not meet the IEC947-1 and
IEC1010-1.

No special ventilation requirements need to be
observed during the installation of this unit

: When removing the drawout

.

FIELD ADJUSTMENTS - There are four screws
holding the plastic 269 case to the drawout cradle.
These screw into holes which are slotted to
compensate for panel thickness. If the 269 case is
mounted at the extreme end of the slot intended for

2-19

2 INSTALLATION

2-20

Figure 2.11

269 Drawout Relay Physical Dimensions

2 INSTALLATION

Figure 2.12

269 Drawout Relay Mounting

2-21