Creep Start / Normal Start - ESAB MEK 4 Service Manual

Potentiometer RP01 is disengaged when a remote control unit is connected to input
XS13. The circuit board microprocessor senses that the remote control unit is
connected by means of the voltage drop across diode D35. When the remote control
unit is connected, the voltage on connector E11 cannot drop below about 0.6 V.
9

Creep start / Normal start

Creep start means that the motor runs at a speed of 1.9 m/minute until the current
relay is activated. When the relay operates, the speed increases to the set speed.
If the current relay has not operated within one second after starting, the motor
increases to the set speed.
MEK 4 with circuit board 0486 205 880 will start at a speed of 3 m/minute when the
creep start is activated. If the set speed is less than 3 m/minute, wire feed starts at
the set speed.
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Activation of creep start, circuit boards with part no. 0486 205 880 and 0486 205 882
The wire feed unit is delivered with creep start activated. If it is to be disengaged, so
that the unit starts immediately at the set speed, connector XS02 must be changed
over.
Note: creep start is activated when terminals B01 and B02 are short- -circuited by
connector XS02.
Spare part boards
Circuit boards with part no. 0486 205 886 and 0487 166 880 can be used as spare
parts to the MEK 4.
Note: if these boards are used, creep start is activated when terminals B02 and B03
are short- -circuited by connector XS02.
Activation of creep start, circuit boards with part no. 0486 205 886 and 0487 166 880
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