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Miller XMT 400 CC/CV User Manual

Miller XMT 400 CC/CV
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OWNER’S
MANUAL
March 1996 Form: OM-139 426K
Effective With Serial No. KG049529
cover_om 4/95 – ST-146 127-C PRINTED IN USA
1996 MILLER Electric Mfg. Co.
XMT 400 CC/CV -
CC/CV DC Welding Power Source For GMAW, GMAW-P, FCAW, GTAW, GTAW-P And SMAW Welding
Amperes Input at Rated Load
Output, 50 Hz, Three-Phase
Rated Voltage Amperage
Maximum
Open-
60% Duty Cycle 100% Duty
Cycle
Welding
Output
Range In
CV Mode
Range In
CC Mode
Circuit
Voltage DC
IP
Rating
380 V 415 V 380 V 415 V
KVA KW
60% Duty
Cycle: 400 A
@ 36 VDC
100% Duty
Cycle: 300 A
@ 32 VDC
10-36 5-400 80 23
32.6
(0.9)*
30.4
(0.9)*
23
(0.7)*
21.6
(0.6)*
21.7
(0.52)*
16.6
(0.16)*
* While idling
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Miller XMT 400 CC/CV Specifications

General IconGeneral
Input Frequency50 / 60 Hz
Output Current Range5 - 400 A
Power Factor CorrectionYes
Protection ClassIP23
Input PhaseSingle or Three Phase
Rated Output300 A at 32 V
Duty Cycle60% at 400 A
Welding ProcessesMIG (GMAW) Stick (SMAW) TIG (GTAW) Flux-Cored (FCAW)
Input Voltage208/230/460 V

Summary

Safety Precautions for Arc Welding

Symbol Usage

Explains the meaning of warning symbols used in the manual.

Arc Welding Hazards

Details critical hazards associated with arc welding processes and equipment.

Additional Installation, Operation, and Maintenance Hazards

Covers hazards related to installation, operation, and maintenance procedures.

Principal Safety Standards

Lists key safety standards relevant to welding and equipment operation.

EMF Information

Discusses considerations about welding and the effects of low frequency electric and magnetic fields.

Definitions

Manufacturer's Warning Label Definitions

Provides definitions for symbols found on the manufacturer's warning labels.

Manufacturer's Rating Labels For CE Products

Details the rating labels specific to CE products, including technical specifications.

Symbols And Definitions

A comprehensive table defining various symbols used throughout the manual.

Installation

Selecting A Location

Guidance on choosing an appropriate location and airflow for the welding unit.

Dimensions And Weights

Provides the physical dimensions and weight specifications of the welding unit.

Tipping

Cautionary advice regarding tipping hazards when placing or moving the unit.

Weld Output Receptacles And Selecting Cable Sizes

Information on weld output receptacles and guidance for selecting appropriate cable sizes.

Remote 14 Receptacle Information

Details the sockets and their functions for the Remote 14 receptacle.

Remote 17 Receptacle Information

Details the sockets and their functions for the Remote 17 receptacle.

115 Volt AC Receptacle

Description of the 115 Volt AC receptacle, its power output, and usage.

Electrical Service Guide

Provides essential electrical service information, including input voltage and amperage.

Placing Jumper Links

Instructions on how to correctly place jumper links to match the input voltage.

Connecting Input Power

Step-by-step guide for safely connecting the input power to the welding unit.

Operation

Front Panel Controls

Detailed explanation of all controls and indicators on the front panel of the unit.

Duty Cycle And Overheating

Information on duty cycle, potential overheating, and protective measures.

Maintenance & Troubleshooting

Routine Maintenance

Outlines recommended routine maintenance tasks and schedules.

Removing Top Of Case And Measuring Input Capacitor Voltage

Procedure for safely removing the top case and measuring capacitor voltage.

Circuit Breakers And Fuses

Identification and function of circuit breakers and fuses within the unit.

Selecting Meter Hold Function On/Off

Instructions on how to select and configure the meter hold function.

Troubleshooting

Lists common problems encountered and provides remedies for resolution.

Electrical Diagram

Circuit Diagram For Welding Power Source

Presents the detailed electrical circuit diagram for the welding power source.

Parts List

Main Assembly

Lists components and their part numbers for the main assembly of the unit.

Panel, Front w/Components

Details parts and components associated with the front panel assembly.

Chassis, Mid

Lists components and part numbers related to the mid-chassis assembly.

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