GE MX350 User manual

Title page
GE Multilin's Quality
Management System is
registered to ISO9001:2000
QMI # 005094
GE Digital Energy
Multilin
Instruction manual
MX350 revision: 1.2x
Manual P/N: 1601-9071-A2
GE publication code: GEK-113497A
Copyright © 2010 GE Multilin
IISO9001:2000
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*1601-9071-A2*
MX350
Automatic Transfer Control
System
Low voltage power transfer control
GE Digital Energy
Power Quality / Zenith
830 W. 40th Street
Chicago IL, 60609
USA
Tel: [phone]
email: GEP[email protected]
Internet: http://www.gedigitalenergy.com/ats

© 2010 GE Multilin Incorporated. All rights reserved.
GE Multilin MX350 Automatic Transfer Control System instruction manual for revision 1.2x.
MX350 Automatic Transfer Control System, EnerVista, EnerVista Launchpad, EnerVista
MX350 Setup, and FlexLogic are registered trademarks of GE Multilin Inc.
The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part number: 1601-9071-A2 (April 2010)

MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL toc–i
Table of Contents
1. INTRODUCTION Overview ............................................................................................................1 - 1
Cautions and warnings............................................................................................................... 1 - 1
Description of the Automatic Transfer Controller system.......................................... 1 - 2
ATS types ........................................................................................................................................... 1 - 5
Specifications ....................................................................................................1 - 6
Timing specifications ................................................................................................................... 1 - 6
Protection specifications............................................................................................................ 1 - 6
User interface specifications.................................................................................................... 1 - 7
Metering and monitoring specifications............................................................................. 1 - 7
Inputs specifications .................................................................................................................... 1 - 7
Outputs specifications ................................................................................................................ 1 - 8
Power supply specifications.....................................................................................................1-8
Communications specifications ............................................................................................. 1 - 9
Testing and certification............................................................................................................. 1 - 9
Physical specifications..............................................................................................................1 - 10
Environmental specifications.................................................................................................1 - 10
Order codes for MX350................................................................................. 1 - 11
Example of an MX350 order code .......................................................................................1 - 11
2. INSTALLATION Mechanical installation ...................................................................................2 - 1
Dimensions....................................................................................................................................... 2 - 1
Product identification .................................................................................................................. 2 - 2
Mounting ........................................................................................................................................... 2 - 2
Module withdrawal and insertion.......................................................................................... 2 - 4
Module and terminal identification....................................................................................... 2 - 6
Electrical installation .......................................................................................2 - 7
Power supply module.................................................................................................................. 2 - 8
CPU module...................................................................................................................................... 2 - 9
Input/Output modules...............................................................................................................2 - 10
Dielectric strength testing .......................................................................................................2 - 14
3. INTERFACING WITH
THE MX350 AT
CONTROLLER
Graphical control panel...................................................................................3 - 1
Introduction to the graphical control panel...................................................................... 3 - 1
MX350 graphical display pages.............................................................................................. 3 - 6
MX350 programming techniques........................................................................................3 - 13
EnerVista™ MX350 Setup Software............................................................ 3 - 17
Software requirements.............................................................................................................3 - 17
Troubleshooting the USB driver............................................................................................3 - 17
Installing the EnerVista™ MX350 Setup software........................................................3 - 20
Connecting EnerVista MX350 Setup to the relay .........................................................3 - 20
Working with setpoints and setpoint files........................................................................3 - 23
Upgrading relay firmware.......................................................................................................3 - 29
Power analysis ............................................................................................... 3 - 30
Waveform capture......................................................................................................................3 - 30
Data logger.....................................................................................................................................3 - 34
4. ACTUAL VALUES Actual values overview....................................................................................4 - 1

toc–ii MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
Metering ............................................................................................................ 4 - 2
Current metering............................................................................................................................4 - 2
Voltage metering............................................................................................................................4 - 2
Power metering ..............................................................................................................................4 - 3
PQ metering......................................................................................................................................4 - 3
Status................................................................................................................. 4 - 4
Status messages ............................................................................................................................4 - 4
Input and output status ..............................................................................................................4 - 4
System Page.....................................................................................................................................4 - 5
Flex Page............................................................................................................................................4 - 5
5. SETPOINTS Understanding setpoints................................................................................ 5 - 1
Setpoint text abbreviations .......................................................................................................5 - 2
Configuration setpoints ................................................................................. 5 - 3
ATS setpoints....................................................................................................................................5 - 3
ATS types............................................................................................................................................5 - 4
Chicago Transfer Alarm Panel (CTAP) option ....................................................................5 - 7
Common ATS setpoints ...............................................................................................................5 - 8
Current and voltage transformers.........................................................................................5 - 9
Inputs................................................................................................................................................5 - 10
Outputs ............................................................................................................................................5 - 10
Communications setpoints.....................................................................................................5 - 10
System..............................................................................................................................................5 - 12
Events ...............................................................................................................................................5 - 13
Zenith................................................................................................................................................5 - 13
Operation setpoints ...................................................................................... 5 - 14
Timers ...............................................................................................................................................5 - 15
Control............................................................................................................. 5 - 16
General.............................................................................................................................................5 - 16
Interlock...........................................................................................................................................5 - 18
Alarms ..............................................................................................................................................5 - 19
Security............................................................................................................ 5 - 20
6. EXERCISER Information....................................................................................................... 6 - 1
Setup....................................................................................................................................................6 - 2
Test........................................................................................................................................................6 - 2
7. DIAGNOSTICS Events ................................................................................................................ 7 - 1
Statistical information.................................................................................... 7 - 3
Phasors.............................................................................................................. 7 - 4
Product information........................................................................................ 7 - 5
Reports .............................................................................................................. 7 - 6
Waveform ......................................................................................................... 7 - 7
Datalog.............................................................................................................. 7 - 8
8. FLEXLOGIC™ FlexLogic™ overview....................................................................................... 8 - 1
Introduction to FlexLogic™........................................................................................................8 - 1
9. COMMUNICATIONS Communications interfaces .......................................................................... 9 - 1

MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL 1–1
MX350 Automatic Transfer Control
System
Chapter 1: Introduction
Digital Energy
Multilin
Introduction
Overview
The MX350 is a modular control and monitoring system designed specifically for low-
voltage transfer switch application. The MX350 provides the following key benefits.
• Flexible control and communication options to suit any low-voltage transfer switch
application.
• Small footprint.
• Modular design reduces the number of spare components for maintenance and
testing.
• Integrated pushbuttons and LED indicators reduce external components and wiring.
• DIN rail and Panel Mounting.
• Multiple communication protocols allows simple integration into monitoring and
control systems.
• Graphical control panel interface provides local control and access to system
information.
• Automation FlexLogic™ with interlocking and programmable logic control.
Cautions and warnings
Before attempting to install or use this device, it is imperative that all caution and danger
indicators in this manual are reviewed to help prevent personal injury, equipment damage,
or downtime. The following icons are used to indicate notes, cautions, and dangers.
Figure 1: Note icons used in the documentation
NOTE
CAUTION
DANGER

1–2 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
OVERVIEW CHAPTER 1: INTRODUCTION
The standard note icon emphasizes a specific point or indicates minor problems that may
occur if instructions are not properly followed.
The caution icon indicates that possible damage to equipment or data may occur if
instructions are not properly followed.
The danger icon provides users with a warning about the possibility of serious or fatal
injury to themselves or others.
Description of the Automatic Transfer Controller system
The MX350 is equipped with a graphical control panel:
• Includes a 89 mm (3.5-inch) 320 by 240 pixel backlit colour LCD screen, 15
pushbuttons, and 7 LED indicators, which provide access to actual values, fault and
alarm lists, event records, and setting configuration. A USB port is provided for laptop
computer connection.
Figure 2: MX350 feature overview
The MX350 includes the following input/output capabilities:
• 5 to 25 contact outputs
• 5 to 32 contact inputs
The following option packages are available:
Option A:
• Full function ATS control with full sensing and control capabilities, depending on order
option.
• Expanded diagnostics, high-speed 256-event capture, 365-day exerciser, EnerVista
launchpad, USB interface for uploading and downloading setup parameters
• 4 programmable inputs and 4 outputs assignable to additional ATS features
• Full complement of programmable ATS control switches (AUTO/MAN, Preferred Source
selector, Commit/No Commit Xfer, Transition Mode Select (for Closed Transition switch
models).
Option B:
Option Package A plus:
• 10 customer programmable digital and 10 analog alarms
Graphical display
• Large metering values
• Wide viewing angle
Soft key navigation
• Graphical module control
Front port access
• USB for laptop connection
Integrated functionality
• Metering, control
• Event recorder
LED indication
• Time delay indication
• Alarm indication
• Transfer inhibit indication
• Source available & connected
indication
Ease of use
• Graphical interface
• Self-description
Mounting options
•DINRail
• Through door
889723A1.CDR
Front panel control
• Integrated device control
• Dedicated control keys

CHAPTER 1: INTRODUCTION OVERVIEW
MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL 1–3
• 20 channel data logger, customer configurable sample period from 1 cycle to 60
minutes
• Waveform capture, 10 channels, up to 256 cycles each 16 samples/sec
• Auto Load Shed with voltage, frequency and kW triggers
Option C:
Option Package B plus:
• 4 additional inputs and outputs (total 8 in, 8 out
Option D:
Option Package C plus:
• 4 additional inputs and outputs (total - 12 in, 12 out)
• FlexLogic for user-customized control logic
Option M:
• Configuration for Manual operation only (non-Automatic)
A single-line diagram for the MX350 is shown below.

1–4 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
OVERVIEW CHAPTER 1: INTRODUCTION
Figure 3: Single line diagram
Table 1: MX350 protection functions
GEN
X1
H1
H1
X1
METERING
V, A, W, VAR, VA, PF, HZ
TO LOAD
UTA
UTILITY
(SOURCE-1)
VOLTAGE
CARD
SOURCE
2
POWER
SUPPLY
1
SOURCE
CARD
VOLTAGE
METERING
NEUTRAL
CT CARD
ATS
CONTROLLER
170VDC
RS485 - MODBUS RTU
ETHERNET - MODBUS TCP/IP
NOTE:1
K
CARD
P
ENGINE START CONTACT
I/O
CARD
24VDC TO K CARD
AND
I/O CARD
SUPPLIED BY OTHERS
(3)
CT'S
(1) CT
NOTE:1
TO
SOURCE-2
NOTE:1- FOURTH POLE/NEUTRAL POLE IS AN OPTIONAL FEATURE.
NOTE:1
NOTE:1
27 59 47
25
475927
46
51R
50G 51G
889739A1.CDR
ANSI device Description
25 Synch check
27 Undervoltage
46 Current balance
47 Voltage phase reversal
50G (option) Ground instantaneous overcurrent
51G (option) Ground time overcurrent
51 (option) Overcurrent
59 Overvoltage

CHAPTER 1: INTRODUCTION OVERVIEW
MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL 1–5
ATS types
Automatic Transfer switch types to be controlled by the Controller are Standard (Open)
Transition, Delayed Transition, and Closed Transition. The figure below shows the one-line
diagram for all three types.
Figure 4: Automatic transfer switch types
In addtion, the MX350 can control the Bypass/Isolation type version of the three basic ATS
types.

1–6 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
Specifications
NOTE
NOTE: Specifications are subject to change without notice.
Timing specifications
GENERAL TIMING ACCURACY
Accuracy:................................................................±500 ms
Protection specifications
OVERVOLTAGE
Pickup level:........................................................... 1.05 to 1.10 × VT in steps of 0.01 (programmable)
Dropout:..................................................................1.03 to 1.08 × VT in steps of 0.01 (programmable)
Time delay: ............................................................ No programmable time delay
UNDERVOLTAGE
Pickup level:........................................................... 0.75 to 0.99 × VT in steps of 0.01 (programmable)
Dropout:..................................................................0.85 to 1.00 × VT in steps of 0.01 (programmable)
Time delay: ............................................................ No programmable time delay
OVERFREQUENCY
Pickup level:........................................................... 50.1 to 63.0 Hz in steps of 0.1 (programmable)
Dropout:..................................................................50.0 to 62.9 Hz in steps of 0.1 (programmable)
Time delay: ............................................................ No programmable time delay
Accuracy:................................................................±0.05 Hz
UNDERFREQUENCY
Pickup level:........................................................... 45.0 to 59.9 Hz in steps of 0.1 (programmable)
Dropout:..................................................................45.1 to 60.0 Hz in steps of 0.1 (programmable)
Time delay: ............................................................ No programmable time delay
Accuracy:................................................................±0.05 Hz
POWER FACTOR
Pickup level:........................................................... 0.99 lag to 0.99 lead in steps of 0.01 (programmable)
Dropout:..................................................................pickup + hysteresis
Time delay:............................................................0 to 65535 seconds in steps of 1
Accuracy:................................................................±0.05
VOLTAGE IMBALANCE
Pickup level:........................................................... 0.05 to 0.20 in steps of 0.01 (programmable)
Dropout:..................................................................0.03 to 0.18 in steps of 0.01 (programmable)
Time delay: ............................................................1 to 60 seconds in steps of 1
CURRENT IMBALANCE
Range:......................................................................4 to 40% in steps of 1
Pickup level:........................................................... 0.04 to 0.40 in steps of 0.01 (programmable)
Time delay: ............................................................1 to 60 seconds in steps of 1 s
Timing accuracy:................................................ ±500 ms
Elements:................................................................ alarm
Accuracy:................................................................±2%

CHAPTER 1: INTRODUCTION SPECIFICATIONS
MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL 1–7
THD ALARM (CURRENT/VOLTAGE)
Pickup level:...........................................................0.1% to 100.0% in steps of 0.1% (programmable)
Time delay:.............................................................0 to 65535 seconds in steps of 1
OVERCURRENT (PER PHASE/NEUTRAL)
Pickup level:...........................................................0.01 to 2.00 × Nominal Current in steps of 0.01%
(programmable)
Time delay:.............................................................0 to 65535 seconds in steps of 1
User interface specifications
GRAPHICAL CONTROL PANEL
Size: ...........................................................................height 102mm, width 153mm, depth 35mm
LCD: ...........................................................................89 mm (3.5-inch) colour, 320 by 240 pixels
LED indicators: .....................................................7 LEDs
Pushbuttons:.........................................................Alarm Reset, Test, Ctrl, Info, plus 11 LCD screen display
control keys
Ports:.........................................................................USB 2.0 type Mini-B for laptop computer connection
Metering and monitoring specifications
EVENT RECORDER
Capacity: .................................................................256 events
Data storage:........................................................non-volatile memory
FREQUENCY METERING
Range: ......................................................................40.00 to 70.00 Hz in steps of 0.01
Accuracy:................................................................±0.05 Hz
POWER METERING
Real power range: ..............................................–2000.0 to 2000.0 kW in steps of 0.1
Apparent power range:....................................0.0 to 2500.0 kVA in steps of 0.1
Accuracy:................................................................±2.0% of full scale with 5 A CT
POWER FACTOR METERING
Range: ......................................................................–0.99 to +0.99 in steps of 0.01
Accuracy:................................................................±0.05
Inputs specifications
CONTROL VOLTAGE INPUT
Input range:...........................................................60 V to 300 V AC
Nominal frequency: ...........................................50 or 60 Hz
DIGITAL INPUTS
Nominal input voltage:.....................................24 V DC
Recognition time:................................................2 cycles
Continuous current draw:...............................4 mA
Type:..........................................................................opto-isolated inputs
External switch: ...................................................wet contact
CALCULATION METHOD
( [IM- IAV] / IAV ) x 100%
Where:
IAV = average phase current
IM= current in a phase with maximum deviation from IAV

1–8 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
PHASE CURRENT INPUTS
Range:......................................................................2.5 to 7.5 A (1.5 × CT)
Input type:..............................................................5 A
Frequency: ............................................................. 50 or 60 Hz
Accuracy:................................................................±2.0% of Full Scale, where Full Scale = 1.5 × CT Primary
Withstand (at 5A nominal):.............................0.2 s at 100×
1.0 s at 50×
2.0 s at 40×
continuous at 3× rated current
PHASE VOLTAGE INPUTS (THREE-PHASE VOLTAGE)
Input range:...........................................................120 to 600 V (nominal)
Nominal frequency:........................................... 50 or 60 Hz
Accuracy:................................................................±2% of reading, or ±1 V, whichever is greater
NOTE
NOTE: Phase current Input Type of 1 A is not supported.
Outputs specifications
FORM-C RELAY
Contact material:................................................ silver-alloy
Operate time:........................................................10 ms
Maximum contact load: ..................................10 mA at 5 V DC
Maximum switching rate:...............................300 operations per minute (no load), 30 operations per
minute (load)
Mechanical life:....................................................10 000 000 operations
Continuous current:...........................................10 A
Make and carry for 0.2s:..................................30 A per ANSI C37.90
FORM-C OUTPUT RELAY BREAK CAPACITY
AC resistive, 120 V AC: ......................................10 A normally-open, 5 A normally-closed
AC resistive, 240 V AC: ......................................10 A normally-open, 8 A normally-closed
AC inductive, PF = 0.4 pilot duty:..................2.5 A
DC resistive, 30 V DC:........................................10 A
SOLID STATE OUTPUT RELAY
Operate time:........................................................< 1 ms
Nominal voltage:.................................................24 V DC
Maximum current:..............................................0.5 A
Power supply specifications
POWER SUPPLY
Nominal:..................................................................120 to 240 V AC
125 to 250 V DC
Range:......................................................................60 to 300 V AC (50 and 60 Hz)
84 to 250 V DC
Ride-Through:.......................................................35 ms
ALL RANGES
Voltage withstand:.............................................2 × highest nominal voltage for 10 ms
Power consumption: .........................................16 W typical, 25 W maximum

CHAPTER 1: INTRODUCTION SPECIFICATIONS
MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL 1–9
Communications specifications
ETHERNET (COPPER)
Modes:......................................................................10/100 MB (auto-detect)
Connector:..............................................................RJ-45
SNTP clock synchronization error: ..............<200 ms (typical)
Protocol: ..................................................................Modbus TCP
RS485 PORT
Port: ...........................................................................opto-isolated
Baud rates:.............................................................up to 115 kbps
Protocol: ..................................................................Modbus RTU, half-duplex
Maximum distance: ...........................................1200 m
Isolation:..................................................................2 kV
USB PORT
Standard specification:....................................Compliant with both USB 2.0 and USB 1.1
Data transfer rate:..............................................USB device emulating serial communications port at
115 kbps
Connector:..............................................................USB2.0 Mini-B
Testing and certification
TESTING AND CERTIFICATION
Test Reference Standard Test Level
Dielectric Voltage Withstand: EN60255-5 2.0 KV
Impulse Voltage Withstand: EN60255-5 5 KV
Insulation Resistance: EN60255-5 500 V DC > 100 Mohm
Damped Oscillatory: IEC61000-4-18/IEC60255-22-1 2.5 KV CM, 1 KV DM
Electrostatic Discharge: EN61000-4-2/IEC60255-22-2 Level 4
RF Immunity: EN61000-4-3/IEC60255-22-3 Level 3
Fast Transient Disturbance: EN61000-4-4/IEC60255-22-4 Level 4
Surge Immunity: EN61000-4-5/IEC60255-22-5 Level 3 & 4
Conducted RF Immunity: EN61000-4-6/IEC60255-22-6 Level 3
Power magnetic Immunity: IEC61000-4-8 Level 4
Voltage Dip & Interruption: IEC61000-4-11 0,40,70% dips 250/300cycle
interrupts
Radiated & Conducted Emissions: CISPR11 /CISPR22/ IEC60255-25 Class A
Ingress Protection: IEC60529 IP20 (base unit) IP54 (Control
Panel)
Environmental (Cold): IEC60068-2-1 -20oC 16 hrs
Environmental (Dry heat): IEC60068-2-2 85oC 16hrs
Relative Humidity Cyclic: IEC60068-2-30 6-day variant 2
Fast Transient Disturbance: IEEE C37.90.1 4 KV CM & DM
SWC Damped Oscillatory: IEEE C37.90.1 2.5 KV CM
Electrostatic Discharge: IEEE C37.90.3 8 KV CD, 15 KV AD

1–10 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
Physical specifications
DIMENSIONS
Size: ........................................................................... Base: 62 mm [2.44"] (W) × 90 mm [3.54"] (H) × 113 mm [4.45"]
(D) (+ terminals 10mm [0.39"])
Expansion: 62 mm [2.44"] (W) × 90 mm [3.54"] (H) × 113 mm
[4.45"] (D)
GCP: 153 mm [6.02"] (W) × 102 mm [4.02"] (H) × 35 mm [1.38"]
(D)
Weight (Base):.......................................................0.75 kg [1.65 lb]
Environmental specifications
APPROVALS
Applicable Council Directive According to
CE compliance: Low voltage directive EN60255-5, EN60947-1, EN60947-6-1
EMC Directive EN61000-6-2/ EN61000-6-4
ISO: Manufactured under a registered
quality program
ISO9001
ENVIRONMENTAL SPECIFICATIONS
Ambient temperatures:
Storage/shipping: - 40oC to 90oC *
Operating: -20oC to 60oC * (Base Unit and Basic Control Panel)
-20oC to 50oC * (Graphical Control Panel)
* 1" around Base Unit
Humidity: Operating up to 95% (non condensing) @ 55oC (As
per IEC60068-2-30 Variant 2, 6days)
Altitude: 2000 m (max)
Overvoltage Category: II
Ingress Protection: IP20 (Base Unit), IP54 (Control Panel)

CHAPTER 1: INTRODUCTION ORDER CODES FOR MX350
MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL 1–11
Order codes for MX350
The information to specify an MX350 relay is provided in the following order code figure.
Figure 5: MX350 order codes
Example of an MX350 order code
MX350-GEHE3BBAKLL: MX350 with graphical control panel incl. USB port, English
language display, high voltage control power supply (84 to 250 VDC or 60 to 300VAC), RS-
485 Modbus RTU port and 10/100 Modbus TCP/IP Ethernet port), data logger and
waveform capture, source 1 voltage sensing, source 2 voltage sensing, load current
sensing, P relay function, and two input/output cards.

1–12 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
ORDER CODES FOR MX350 CHAPTER 1: INTRODUCTION

MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL 2–1
MX350 Automatic Transfer Control
System
Chapter 2: Installation
Digital Energy
Multilin
Instal latio n
Mechanical installation
This section describes the mechanical installation of the MX350 system, including
dimensions for mounting and information on module withdrawal and insertion.
Dimensions
The MX350 is packaged in a modular arrangement.
The dimensions of the MX350 are shown below. Additional dimensions for mounting and
panel cutouts are shown in the following sections.

2–2 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION
Figure 1: MX350 dimensions
Product identification
The product identification label is located on the side panel of the MX350. This label
indicates the product model, serial number, firmware revision, and date of manufacture.
Figure 2: MX350 label
Mounting
The MX350 can be mounted three ways: standard panel mount, DIN rail mount, and screw
mount for high vibration environments.
The standard panel mount and cutout dimensions are illustrated below.
2.425”
(61.6 mm)
0.525”
(13.3 mm)
889748A1.CDR
Model:
Serial Number:
Firmware: Mfg. Date:

CHAPTER 2: INSTALLATION MECHANICAL INSTALLATION
MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL 2–3
Figure 3: Panel mounting and cutout dimensions
The DIN rail mounting is illustrated below. The DIN rail conforms to EN 50022.
CAUTION
CAUTION: To avoid the potential for personal injury due to fire hazards, ensure the unit is
mounted in a safe location and/or within an appropriate enclosure.
Figure 4: DIN rail mounting
The screw mount for high vibration environments is illustrated below.
#4 - 40x3/8in SELF-TAP PAN HD PHILIPS
QTY: 6 (SUPPLIED); GE PART NO. 1402-0017
TIGHTENING TORQUE: 8 lb-in
REAR OF PANEL
CUTOUT AND
MOUNTING HOLES
INSTALL RELAY
FROM FRONT
OF THE PANEL
3.775”
(95,89 mm)
5.580”
(141,73 mm)
0.105”
(2,67 mm)
0.138”
(3,49 mm)
3.500”
(88,90 mm)
0.130”
(3,30 mm) (QTY: 6)
5.790”
(147,07 mm)
1.750”
(44,45 mm)
889725A1.CDR
SNAP-IN THE DIN CLIPS (QTY: 4)
FOR DIN RAIL MOUNTING 0.30”
(7,6 mm)
1.38”
(35,1 mm)
DIN 3 RAIL
889726A1.CDR

2–4 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION
Figure 5: Screw mounting
Module withdrawal and insertion
DANGER
DANGER: Module withdrawal and insertion may only be performed when control power has been
removed from the unit. Inserting an incorrect module type into a slot may result in
personal injury, damage to the unit or connected equipment, or undesired operation!
CAUTION
CAUTION: Proper electrostatic discharge protection (for example, a static strap) must be used
when coming into contact with modules while they are removed from the MX350.
The MX350 is a modular protection system. This allows for easy withdrawal and insertion
of modules for fast replacement. Modules must only be replaced in their original factory
configured slots.
Use the following procedure to withdraw a module.
1. Ensure that control power has been removed from the MX350.
2. Record the slot location of the module to ensure that the same or replacement
module is inserted into the correct slot.
3. Remove the two captive screws at the top and bottom of the module.
4. Slide a flat-blade screwdriver into the opening above the module marked by the two
arrows on top of the MX350 case.
5. Press down on the screwdriver and pivot towards the unit to unlatch the module from
the MX350 case.
MEETS VIBRATION REQUIREMENT OF
IEC 60255 SEC 21.1, 21.2, & 21.3
2.250”
(57,15 mm)
#6 -32 THREADED HOLE
QTY: 2
4.100”
(104,14 mm)
889727A1.CDR