SAFETY Users of ESAB welding equipment have the ultimate responsibility for ensuring that anyone who works on or near the equipment observes all the relevant safety precautions. Safety precautions must meet the requirements that apply to this type of welding equipment.
INTRODUCTION General A6 VEC is one of the main components in the A6 system. A range of motor speeds and gearbox ratios makes it possible to regulate the speed range. A6 VEC is available with or without free--wheeling gears. A6 VEC motor with gearbox is a permanent magnet DC motor with combined toothed gears and worm gears.
Page 21
Table 1 Maximum per- missible torque Gear ratio 42 V DC on output shaft stub 1) Motor Gears Speed regula- Rated speed Armature cur- tion range for Power output at for various ar- rent at rated output shaft rated voltage matures voltage 2) stub 3)
Page 22
Table 2 Maximum per- missible torque Gear ratio 75 V DC on output shaft stub 1) Motor Gears Speed regula- Rated speed Armature cur- tion range for Power output at for various ar- rent at rated output shaft rated voltage matures voltage 2) stub 3)
A6 VEC A6 VEC can be supplied with a shaft stub fitted to the right (H) or the left (V), or to both sides (D), as shown in the figures below. Versions with a single shaft stub (right or left fitting) are available with manual or pneumatic free--wheel.
15. Toothed gear on motor shaft, ratio 8.2:1. 16. Worm gear, ratio as specified in tables 1 and 2. 17. Worm wheel. A6 VEC drive unit is prepared for fitting an angle sensor and tachometer sensor (specification according to order). - - 25 - - dgb3d1ea...
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.
Page 27
When the VEC motor is to be fitted to the wall, spacer no. 0497 967 880 must be used. The plastic cap normally protecting the AC tachometer must then be removed and the cable inserted through the cable support sleeve in the spacer. Order number of assembly set containing all parts necessary for the wall mounting: 0457 967 880.
Page 28
Incremental pulse generator The high--precision incremental pulse generator is used for position control in ESAB’s welding systems. The pulse generator is connected to the motor shaft over a shaft coupling. Amphenol contact MS 3106E- -14S- -6S - - 28 - -...
The installation shall be executed by a professional. Assembly instructions 1. Install the A6 VEC in the required position. Threaded holes are provided at both ends and on the sides of the motor and gearbox for this purpose and for the attachment of external components (see dimension drawing).
Rotating parts can cause injury, take great care. Set the desired speed manually using any of the regulators PEG1, PEH, PEF or PTF. All personnel who work with the A6 VEC must be thoroughly familiar with: the operation of the unit the function of the unit all relevant safety precautions.
T = Operating hours ORDERING OF SPARE PARTS Spare parts are ordered through your nearest ESAB representative, see back cover. When ordering spare parts, please state machine type and number as well as desig- nation and spare part number as shown in the spare parts list on page 35.
Need help?
Do you have a question about the A6 VEC and is the answer not in the manual?
Questions and answers