You are here

HF2 High Frequency Inverter Spot Welding Power Supply

The HF2 High Frequency Inverter Spot Welding Power Supply recisely controls and monitors electrical AND mechanical weld parameters. Miniature welds are highly sensitive to small heat profile fluctuations in the resistance welding process. Overheating deforms and destroys parts, while underheating results in a weak and unacceptable bond. To achieve consistent, reliable welds of small to micro-miniature parts, heating needs to be precisely controlled. This necessitates superior control of the energy output.

Key features HF2 High Frequency Inverter Spot Welding Power Supply

  • Constant current, voltage or power control modes
  • High weld repetition rates
  • Spot, braze and seam welding applications
  • Graphical and alpha-numeric user interface
  • I/O communication ports for factory installation
  • Small transformers facilitate easy integration
  • Optional built-in Weld Sentry with SPC
Control system 2 KHz pulse width modulated (PWM) inverter welding control with constant current, voltage or power feedback operating modes. Feedback response every 250 microseconds.
Line voltage Three phase, 208, 230, 380 or 460 VAC ±13%, 50/60 Hz
Input circuit rating HF2/208-50 A: HF2/230-50 A; HF2/380-30 A; HF2/460-30 A
Weld current 0.05 – 4.0 kA
Weld power 0.10 – 9.99 kW
Weld voltage 0.1 – 5.0 V
Weld period 2000 milliseconds (maximum)
Graphical weld display Graphical display of programmed and actual weld current, voltage and power
Welding functions 10 functions – basic, braze, dual pulse, pre/weld/post heat, pulsation, quench/te per, roll-spot, weld/repeat, up/down slope and seam
Weld schedules The user can save (write) 128 different weld schedules. Weld schedules 1 through 127 can be protected. Schedule O is designed to be used as a scratchpad for schedule development.
Input signals .
Remote control external input connector Provides control for the following remote control signals: emergency stop, weld inhibit and remote weld schedule selection. Use dry relay contacts or optocouplers to control remote external input signals.
Firing switch 1-level footswitch, 2-level footswitch, 2-wire firing switch, 3-wire firing switch and optofiring switch. Use dry relay contact or opto-couplers to control input signals.
Output signals .
Solid state relays 2 user-programmable solid state relays: AC-24/115 VAC @ 15 VA: DC-24 VDC @ 15 VA.
Valve driver outputs 2 solid state relay outputs for controlling air actuated weld heads. Valve #1 can control a single 24/115 VAC air head. Valve #2 can control a single 24 VAC air head.
HF2 transformer model IT-X3A/230IT-X3A/380IT-X3A/460IT-X11A/230IT-X11A/460
Nominal AC input voltage 208/240400480208/240400/480
Input KVA (50%) duty cycles 9991915
Number of primary taps 11124
Turn ratio 46:190:1109:125:1/30:1Turns Ratios: 44:1, 52:1, 60:1, 68:1
Maximum unloaded output voltage (v)
Maximum output current (A) 4,0004,0004,0004,0004,000
Duty cycle (%) at max. current 65555
Model InverterIT-X3A/230 IT-X3A/380 IT-X3A/460IT-X11A/230IT-X11A/460
Dimensions (LxWxH) 381 mm x 267 mm x 216 mm (15 in x 10.5 in x 8.5 in)368 mm x 183 mm x 183 mm (14.5 in x 7.2 in x 7.2 in)455 mm x 183 mm x 183 mm (17.9 in x 7.2 in x 7.2 in)470 mm x 183 mm x 183 mm (18.5 in x 7.2 in x 7.2 in)
Weight 19 kg (42 lb)13 kg (29 lb)25 kg (56 lb)26 kg (58 lb)
Resistor to terminal
Seam welding
Capacitor to lead frame

Customized Solutions

Send your sample to one of our technology centers in Europe for an evaluation. We will then determine which solution meets your needs best. AMADA WELD TECH offers feasibility testing and application consulting.