Miller Electric CP-252TS, CP-302 manual Slope Selection 250 Ampere Model

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2-8. Slope Selection (250 Ampere Model)

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YDisconnect and lockout/tag- out input power before re- moving side panel.

Lockout/tagging procedures con- sist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

1Slope Connection Label

2Tapped Reactor AC-Z And Slope Coils

Tapped reactor AC-Z is factory con- nected to slope tap 8 which is suit- able for most GMAW applications.

AC-Z controls the inductance applied to the weld current. To increase inductance and wet out the weld puddle, connect to a higher tap number. To stiffen the weld puddle, connect to a lower tap num- ber.

3Leads 70, 71 and 72 With Pressure Connectors

Slide pressure connectors onto the same tap of each coil, and secure them.

YAn unbalanced secondary current can damage the main transformer and cause errat- ic weld conditions. Be sure leads 70, 71 and 72 are con- nected to the same numbered slope turn tap on each coil. See slope connection label .

4Firing Board PC1

5Receptacle RC2

6Lead 36

7Receptacles RC3 Through RC6

Connect lead 36 from RC2 to correct receptacle RC4, RC5, RC6 or RC7 to match tap slope connec- tions made in Section A as follows:

RC3 − 300A (Used With 300A Mod- els Only)

RC4 for 4 turns RC5 for 6 turns RC6 for 8 turns

SLOPE TURNS

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TAP SLOPE CONNECTIONS

IMPORTANT:

Be sure connections are clean

before reconnecting tap.

IMPORTANT:

Move friction lug on PC1 to correct tab to insure proper operation of voltmeter preset.

S-177 763-B

RC7 for 10 turns. Reinstall right side panel.

1/2 in 3/8 in

Ref. ST-801 518-A

OM-259 Page 14

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Contents Processes DescriptionFrom Miller to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killMoving Parts can cause injury Welding Wire can cause injuryFire or Explosion hazard Falling Unit can cause injuryPrincipal Safety Standards EMF InformationAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux Signification des symbolesLES Décharges Électriques peuvent être mortelles Identifie un message de sécurité particulierLES Pièces Chaudes peuvent cau- ser des brûlures graves LE Soudage peut causer un incen- die ou une explosionLES Particules Projetées peu- vent blesser les yeux LE Bruit peut affecter l’ouïe’EMPLOI Excessif peut Faire Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser LES Pièces Mobiles peuvent cau- ser des blessuresPrincipales normes de sécurité Information sur les champs électromagnétiquesConsignes relatives aux stimulateurs cardiaques 200 SpecificationsDuty Cycle And Overheating 230 380 400Volt-Ampere Curves Ampere ModelsDimensions And Weights DimensionsWeight Do not move or operate unit where it could tip Selecting a LocationMovement Tipping For GMAW, use optional gas valve Slope Selection 250 Ampere Model Slope Connection Label Tapped Reactor AC-Z And Slope CoilsInductance Selection 300 Ampere Models Weld Output Terminals And Selecting Cable Sizes Remote 14 Receptacle InformationARC Welding can cause Electromagnetic Interference Connecting To 115 Volts AC Duplex Receptacle Electrical Service GuidePlacing Jumper Links +/- 5 in lbConnecting Input Power = GND/PE Earth GroundControls Routine MaintenanceDisconnect power MonthsOverload Protection Replacing FusesTroubleshooting Trouble Remedy− Electrical Diagrams Circuit Diagram For 300 Ampere Models OM-259 − Parts List Complete Assembly Panel, Front w/Components RC8 Rectifier Assembly Service SupportOwner’s Record Miller Electric Mfg. Co

CP-302, CP-252TS specifications

The Miller Electric CP-252TS and CP-302 are advanced power sources designed to meet the demands of both the industrial and manufacturing sectors. Known for their reliability and performance, these models are ideal for a variety of welding applications, including MIG, TIG, and stick welding.

One of the main features of the CP-252TS is its superior arc stability, which is essential for achieving high-quality welds. This model integrates Miller's Auto-Set technology, enabling users to easily configure their welding parameters for optimal performance. By simply selecting the material type and thickness, the machine automatically adjusts voltage and wire feed speed, streamlining the setup process and significantly reducing the likelihood of user error.

In contrast, the CP-302 model emphasizes versatility and connectivity, offering multiple welding processes in one machine. It is equipped with a robust wire feeder that can handle various wire diameters, making it suitable for both thin sheet metal and thicker materials. The CP-302 also features Miller’s advanced inverter technology, ensuring high energy efficiency and reducing power consumption. This makes it an environmentally friendly option without compromising on performance.

Both models come equipped with a user-friendly interface, allowing operators to monitor and adjust settings with ease. The clear LCD display provides critical information at a glance, improving workflow and efficiency in high-demand environments. Additionally, these machines are designed with durability in mind, featuring rugged construction that withstands the rigors of daily use in challenging industrial conditions.

Safety is a priority with the Miller Electric CP-252TS and CP-302. They include advanced protection features that prevent overheating and electrical overloading, ensuring both equipment longevity and operator safety. Furthermore, Miller's commitment to compliance with industry standards means these machines offer peace of mind in terms of regulatory adherence.

In summary, the Miller Electric CP-252TS and CP-302 are exceptional choices for professionals looking for reliable, efficient, and versatile welding solutions. Their combination of advanced technology, user-friendly design, and robust safety features make them indispensable tools in any welding operation. Whether for fabrication, maintenance, or production, these power sources deliver the performance and efficiency required to keep pace with modern industrial demands.
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