Hot Spot Welding (HSW) Power Module
Inverters for Welding > Hot Spot Welding (HSW) Power Module
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The power module for Hot Spot Welding (HSW) applications is a device operating with a PWM technique at 50kHz equipped with a parallel type interface hardware (20 pole bus with flat cable). This interface facilitates the parallel interconnection of more than one power module.

Power modules can be integrated in automated welding systems.

Required in addition to the power module:

> Control Processing Unit (Part Number: CPU063)
CPU card that interconnects with the power modules via 20 pole bus. It is equipped with RS232 serial communication line to connect either a PC/PLC or a CRS remote control unit (REM).

> Auxiliary transformer card (Part Number: MIN001)
Power supply of the CPU card.

> Remote Control Unit (Part Number: REM305 or REM306))
Remote control unit with operator control panel.

> Flat cable - from CPU to MOD (Part Number: CBF105 or CBF106)
Standard 20 pole flat cable to connect power module to CPU card.

> Flat cable - from MOD right to MOD left (Part Number: CBF103)
Standard 20 pole flat cable to connect both sides of the power module. Not needed in case of using only half power module.

> RS232 cable - CPU to REM
Standard cable for RS232 serial communication line to connect CPU card to REM

Optional:

> Operator panel kit (Part Number: OPP001)
Front display card used for configuration set-up and check. If installed, debug jumper of the CPU card must be turned ON.

> Flat cable - from CPU to OPP (Part Number: CBF201)
Standard 34 pole flat cable to connect CPU card to operator panel.

HSW Power Module Specifications
Unit of Measurement
CWM-A02
Air
2500A
7.5V / 7%
CWM-W03
Water
2500A
7.5V / 10%
CWM-W01
Water
5000A
7.5V / 5%
Max welding output voltage (Max load)
Volt
7.5
7.5
7.5
Max output current  (Peak value)
Ampere
2500
2500
5000
Instant power
W
18750
18750
37500
Continuous duty cycle
%
7
10
5
Short term (10 cycles) duty cycle
%
15
15
10
Peak primary current required
A/ac
54
65
130
Minimum primary current requirement
A/ac
25
16
110
Adjustment precision (In line conforming with EN50160)
%
2
2
2
Number of welding profile Phases  
each
3
3
3
Max time for each phase
Ms
2000
2000
2000
Number of transformers incorporated in ferrite E70
each
2
1
2
Working frequency on the primary stage
kHz
15
15
15
Working temperature
°C
30
NA
NA
Interface RS232  
Present
Present
Present
Short circuit protection  
Autolimit
Autolimit
Autolimit
Overheating protection  
Present
Present
Present
Phase loss detection  
Present
Present
Present
Graphic memorization A + V real time  
Present
Present
Present
Mains voltage
Vac
400
400
400
Mains frequency
Hz
50 - 60
50 - 60
50 - 60
Cos §  
1
1
1

Last update: Oct/09/2010