APPENDIX A: TECHNICAL SPECIFICATIONS
DUAL PULSE 125
STORED ENERGY RESISTANCE WELDING POWER SUPPLY
A-6 990-270
Calculate RR
(1+2),
Rep Rate (Hit Rate) for dual pulse operation.
(RR
1
) (RR
2
)
RR
(1+2)
= = welds/minute
RR
1
+ RR
2
For example, with a 1500 μf capacitor bank, if the energy level of Pulse 1 is 25% and Pulse 2 is
75%, the repetition rate for the dual pulse weld would be:
(85) (52)
RR
(1+2)
= = 32.2 welds/min.
85 + 52
Power Cord
5 foot cable is Type SJT, 3 conductor, 16 AWG stranded wire.
Firing Switch
Required for all weld heads or handpieces, the 5 foot cable is Type 2/C, 600 volt, with 2 shielded,
twisted 22 AWG conductors of high-flex stranded wire. Firing switch connector is an Amphenol 80-
MC2FI with strain relief that mates with an Amphenol 80-MC2M.
Footswitch Connector
Provided for connection of Air operated Weld Heads. The receptacle is a 4-pin Amphenol 91-PC4F
(550-1-006) that mates with an Amphenol 91-MC4M (520-1-009) connector. Connect Pin 3 to Pin 4 on
a user supplied 1-Level Footswitch. This connector is wired as follows:
Pin Wire Color Description
1 - Chassis Ground
2 Blue / White Footswitch Level #1 or Single Level Footswitch
3 Green Footswitch Level #2
4 Violet / White Common
Air Valve Driver
Provided for direct connection of 24 or 115 VAC Solenoid for Air operated Weld Heads. The receptacle
is an AMP 206430-1 (550-1-062) 4-Pin receptacle which mates with an AMP 206429-1 (520-1-107)
plug. Connection of a standard 115 volt plug can be accomplished by using the Miyachi Unitek Model
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