Accessories - ESAB A6 VEC Instruction Manual

GB
2.7

Accessories

For high demands on speed control and positioning the VEC motor can be fitted with
a suitable sensor.
The motor can be equipped with three types of sensors: AC tachometer, optical
pulse generator or incremental pulse generator.
The sensors can be ordered as separate add--on kits adapted for the motor in
question.
AC tachometer
The AC tachometer with six pulses per motor revolution is mostly used in ESAB's
wire feed units and in ESAB's automatic welding machines in combination with the
PEH regulator.
The tachometer consists of a rotating magnet to be fitted to the motor shaft, and a
surrounding coil.
The AC tachometer requires no external voltage supply and can be connected
directly to the motor contacts of the PEH regulator (pins five and six).
1. AC tachometer
2. Tachometer cable
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3. Motor cable
4. Circuit diagram
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