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Produttore : Miller Electric File Size : 1.27 mb File Nome : o188304af_mil.pdf Lingua di insegnamento:

Reduce amperage or voltage, or duty cycle before welding. NOTICE . Exceeding duty cycle can damage unit and void warranty. Overheating 0 15 A or V OR Minutes Reduce Duty Cycle sduty1 5/95 / SA-207 877 6 Minutes Welding 4 Minutes Resting 60% Duty Cycle 3-3. Volt-Ampere Curves va_curve1 4/95 . SA-188 537 / SA-178 653 Volt-amperecurves show minimum and maximum voltage and amperage output capabilities of unit. Curves of other settings fall between curves shown. CC Mode CV Mode OM-188 304 Page 12 OM-188 304 Page 13 SECTION 4 . INSTALLATION 4-1. Selecting A Location loc_2 3/96 - Ref. ST-151 556 / ST-802 167 1 Lifting Handles Use handles to lift unit. 2 Hand Cart Use cart or similar device to move unit. 3 Rating Label Use rating label to determine input power needs. 4 Line Disconnect Device Locate unit near correct input power supply. ! Special installation may be required where gasoline or volatile liquids are present . see NEC Article 511 or CEC Section 20. 24 in (610 mm) 17 in (432 mm) 12-1/2 in (318 mm) Movement 1 1 2 ! Do not move or operate unit where it could tip. Location 4 3 Dimensions And Weight 18 in (460 mm) 18 in (460 mm) 76 lb (34.6 kg) OM-188 304 Page 14 4-2. Weld Output Receptacles And Selecting Cable Sizes ! ARC WELDING can cause Electromagnetic Interference. To reduce possible interference, keep weld cables as short as possible, close together, and down low, such as on the floor. Locate welding operation 100 meters from any sensitive electronic equipment. Be sure this welding machine is installed and grounded according to this manual. If interference still occurs, the user must take extra measures such as moving the welding machine, using shielded cables, using line filters, or shielding the work area. Weld Output Terminals Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit Not Exceeding*** ! Turn off power before connecting to weld output terminals. ! Do not use worn, damaged, undersized, or poorly spliced cables. 100 ft (30 m) or Less 150 ft (45 m) 200 ft (60 m) 250 ft (70 m) 300 ft (90 m) 350 ft (105 m) 400 ft (120 m) 100 4 (20) 4 (20) 4 (20) 3 (30) 2 (35) 1 (50) 1/0 (60) 1/0 (60) 150 3 (30) 3 (30) 2 (35) 1 (50) 1/0 (60) 2/0 (70) 3/0 (95) 3/0 (95) 200 3 (30) 2 (35) 1 (50) 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120) 4/0 (120) 250 2 (35) 1 (50) 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120) 2 ea. 2/0 (2x70) 2 ea. 2/0 (2x70) 300 1 (50) 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120) 2 ea. 2/0 (2x70) 2 ea. 3/0 (2x95) 2 ea. 3/0 (2x95) 350 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120) 2 ea. 2/0 (2x70) 2 ea. 3/0 (2x95) 2 ea. 3/0 (2x95) 2 ea. 4/0 (2x120) + . Output Receptacles 400 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120) 2 ea. 2/0 (2x70) 2 ea. 3/0 (2x95) 2 ea. 4/0 (2x120) 2 ea. 4/0 (2x120) 500 2/0 (70) 3/0 (95) 4/0 (120) 2 ea. 2/0 (2x70) 2 ea. 3/0 (2x95) 2 ea. 4/0 (2x120) 3 ea. 3/0 (3x95) 3 ea. 3/0 (3x95) 600 3/0 (95) 4/0 (120) 2 ea. 2/0 (2x70) 2 ea. 3/0 (2x95) 2 ea. 4/0 (2x120) 3 ea. 3/0 (3x95) 3 ea. 4/0 (3x120) 3 ea. 4/0 (3x120) * This chart is a general guideline and may not suit all applications. If cable overheats use next size larger cable. **Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere. ( ) = mm2 for metric use S-0007-F. ***For distances longer than those shown in this guide, call a factory applications representative at 920-735-4505. OM-188 304 Page 15 4-3. Remote 14 Receptacle Information Socket* Socket Information A J 24 VOLTS AC A 24 volts ac. Protected by circuit breaker CB2. B K I C L N H B Contact closure to A completes 24 volts ac contactor control circuit. D M G F 115 VOLTS AC I 115 volts ac. Protected by circuit breaker CB1. E J Contact closure to I completes 115 volts ac contactor control circuit. C Output to remote control; +10 volts dc. REMOTE OUTPUT D Remote control circuit common. CONTROL E 0 to +10 volts dc input command signal from remote control. A/V F Current feedback; +1 volt dc per 100 amperes. AMPERAGE VOLTAGE H Voltage feedback; +1 volt dc per 10 output receptacle volts. GND G Circuit common for 24 and 115 volts ac circuits. K Chassis common. *The remaining sockets are not used. 4-4. Optional 115 Volt AC Duplex Receptacle And Circuit Breakers ST-801 245-A 1 115 V 10 A AC Receptacle Power is shared between duplex receptacle and Remote 14 receptacle (see Section 4-3). 2 Circuit Breaker CB1 CB1 protects duplex receptacle and 115 volt ac portion of Remote 14 receptacle from overload. 3 Circuit Breaker CB2 CB2 protects 24 volt ac portion of Remote 14 receptacle from overload. Press button to reset breaker. 2 3 1 4-5. Electrical Service Guide NOTICE . INCORRECT INPUT POWER can damage this welding power source. This welding power source requires a CONTINUOUS supply of input power at rated frequency10%) and voltage 10%). Phase to ground voltage shall not exceed +10% of rated input voltage. Do not use a generator with automatic idle device (that idles engine when no load is sensed) to supply input power to this welding power s...

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