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UB-4000A - Linear DC Spot Welding Control with Built‑in Monitor (formerly known as DC29)

The UB-4000A - Linear DC Spot Welding Control with Built‑in Monitor is ideal for applications which require exceptional control, fast rise times, and high quality throughput. UB-4000A requires only single phase input power and can output up to 4000 amps. Ultra-fast rise times permit short overall weld times, resulting in less part deformation and stronger welds. This is extremely important when welding heat sensitive parts such as battery cells or sensitive electronic devices.

UB-500A  provides unsurpassed levels of control for resistance micro welding. Requiring only single phase power, UB-500A is a 500 amp Linear DC control with feedback modes designed to adapt to part and process variables. This power supply should be used for smaller applications where closed-loop feedback control and fast response times are required. Safety critical applications such as those found in the medical and automotive markets will benefit from UB-500A’s precision low energy control.

 

Key Features UB-4000A - Linear DC Spot Welding Control with Built‑in Monitor

  • Advanced closed-loop analog control yields repeatable and stable programmable waveforms
  • Extremely fast rise times permit shorter weld times, less part deformation, longer electrode life, and greater weld strength with more part ductility
  • Built-in monitor with graphical screen shows visual trace of energy over time, aiding in weld parameter optimization
  • Side mounted weld cables and compact unit size increase installation options
  • Single phase power input and simple I/O allows for easy setup and versatility of use

 

Model number UB-4000AUB-500A
Nominal line voltages (single phase) 88-264 VAC 47-63 Hz88-264 VAC 47-63 Hz
Repetition rate 20 kW @ 1 weld/sec for 10 ms (per weld)5 kW @ 1 weld/sec for 10 ms (per weld)
Setting ranges: Current 200 A - 4000 A 10 amp/step5A-500A 1 amp/step
Setting ranges: Voltage 0.1 V - 9.9 V 10 mV/step0.01 V - 9.9 V 10 mV/step
Setting ranges: Power 0.1 kW - 25.0kW 10 Watt/step0.05 kW - 4.99 kW 10 Watt/step
Peak: Current 4000 A500 A
Peak: Voltage 10 V10 V
Peak: Power 25.0 kW4.9 kW
Output regulation versus line voltage variance 2%2%
Output regulation versus load resistance variance 2%2%
Weld period ranges Ranges (ms)Resolution (steps)Ranges (ms)Resolution (steps)
First / second pulse, up/downslope and cool periods 0 - 99.9.1(0-9.9), 1(10-99)0 - 99.9.1(0-9.9), 1(10-99)
Squeeze/hold periods 0-99910-9991
Output accuracy: Current ±2% or 10 A±2% or 2.5 A
Output accuracy: Voltage ±2% or 0.05 V±2% or 0.05 V
Output accuracy: Power ±5% or 50 W±5% or 12 W
Features .
Weld heat profile control UB-4000AUB-500A
Weld pulse control Dial pulse with independent control of current, voltage or power on each pulseDial pulse with independent control of current, voltage or power on each pulse
Programmable weld pulse segments Squeeze, upslope 1, weld 1, downslope 1, cool, upslope 2, weld 2, downslope 2, holdSqueeze, upslope 1, weld 1, downslope 1, cool, upslope 2, weld 2, downslope 2, hold
Weld schedule memory Save up to 99 different weld schedules, protected from unauthorized changesSave up to 99 different weld schedules, protected from unauthorized changes
Weld schedule chaining Allows automatic linking of weld schedule sequenceAllows automatic linking of weld schedule sequence
Built-in weld monitor functions
Measurement parameters Current, voltage, power, resistance on each pulse.Current, voltage, power, resistance on each pulse.
Graphic display Back-lit LCD displays programmed and actual weld current, voltage, power, or resistance and upper and lower limitsBack-lit LCD displays programmed and actual weld current, voltage, power, or resistance and upper and lower limits
Measurement selection Peak or averagePeak or average
Current measurement range / accuracy 0.1 – 4.0 kA, ±2% of setting ±20 A0.005 – 500 A, ±2% of setting ±5 A
Voltage measurement range / accuracy 0.1 – 9.9 V, ±2% of setting ±0.05 V0.01 – 9.9 V, ±2% of setting ±0.05 V
Power measurement range / accuracy 0.1 – 25.0 kW, ±5% of setting ±50 W0.01 – 4.9 kW, ±5% of setting ±10
Alarms Display alert, five user programmable AC/DC relays; audio alarmDisplay alert, five user programmable AC/DC relays; audio alarm
Programmable weld energy limit Terminates weld energy when exceeding user defined current, voltage, or power limitsTerminates weld energy when exceeding user defined current, voltage, or power limits
Weld pre-check Inhibits second weld pulse when first test pulse exceeds user programmed limitsInhibits second weld pulse when first test pulse exceeds user programmed limits
Active part conditioner First pulse current limit in constant powerFirst pulse current limit in constant power
I/O and data communications
Input: Input Isolation All inputs and outputs are fully isolatedAll inputs and outputs are fully isolated
Input: Control voltages +24V, sourcing or sinking inputs+24V, sourcing or sinking inputs
Input: Foot switch initiation 1-level foot switch, 2-level foot switch1-level foot switch, 2-level foot switch
Input: Firing switch initiation Mechanical or opto firing switchMechanical or opto firing switch
Input: Remote control Remote weld schedule select, process inhibit, emergency stop, alarm resetRemote weld schedule select, process inhibit, emergency stop, alarm reset
Input: RS232 Change weld schedules and individual parametersChange weld schedules and individual parameters
Input: Electrode voltage Weld voltage signal for voltage feedback operation (0 to 10V peak)Weld voltage signal for voltage feedback operation (0 to 10V peak)
Output: Monitor RS232 weld data outWeld voltage signal for voltage feedback operation (0 to 10V peak)
Output: Weld head air valve driver 24 VAC, 0.5 A; timing controlled by UB-4000A or UB-500A24 VAC, 0.5 A; timing controlled by UB-4000A or UB-500A
Output: Alarm relays Five user-programmable opto isolated relays; programmable normally open or normally closed contacts: 30 VDC at 0.5 A Conditions: weld, end of weld, alarm, out of limits, ready, weld counterFive user-programmable opto isolated relays; programmable normally open or normally closed contacts: 30 VDC at 0.5 A Conditions: weld, end of weld, alarm, out of limits, ready, weld counter
Dimensions (LxWxH) 381 mm x 213 mm x 305 mm (15 in x 8.4 in x 12 in )381 mm x 213 mm x 305 mm (15 in x 8.4 in x 12 in )
Weight 55 kg (49 (22)120 lb)55 kg (49 (22)120 lb)
Battery tab to lithium ion cell
Halogen lamp filaments
Catheter guide wire assembly
Air bag detonator module (squib wire)

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.

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