The MEA-100Ais a single-phase AC resistance-welding power supply designed for fine
spot welding. The control method can be selected from secondary constant-current
control and power supply voltage fluctuation compensation control. The MEA-100A
realizes high quality welding, so it is suitable for small size precise welding.
①Four welding current control systems are currently available for the MEA-100A. Select
the control system best suited to the particular workpiece.
[Multicycle Welding + Secondary Constant-Current Control]
Returns welding current feedback to the control at each half-cycle, using the toroidal
coil. The control makes adjustments based on this feedback to maintain a constant
current, compensating for voltage fluctuation and workpiece load variances.
[Multicycle Welding + Power Supply Voltage Fluctuation Compensation Control]
Monitors and compensates for power supply voltage fluctuation to maintain a constant
current. Compensation begins from the first half-cycle.
[Single-Cycle Welding + Power Supply Voltage Fluctuation Compensation
Control]
Permits the flow of one cycle current only. You can set the first half wave and the
second half wave separately. Compensation begins with the first half wave.
[Half-Cycle Welding + Power Supply Voltage Fluctuation Compensation Control]
Permits the flow of one half-cycle current only. The direction of the current is inverted
with each current flow.