Amada S-2200CA, Operation Manual

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APPENDIX D: WIRE GAUGE AND CIRCUIT BREAKER SELECTION
IS-2200CA/4500CA INVERTER POWER SUPPLY
D-6 990-412
Circuit Breaker Settings
The dipswitches referred to in his section are located on the ABB circuit breaker, not on the IS
motherboard. The dipswitches are clearly labeled on the circuit breaker. Please refer to this manual if
you need more information on the circuit breaker.
The circuit breaker has three adjustments:
ADJUSTMENT TRIP FUNCTION RANGE INDIVIDUAL SETTINGS
L Long time pick-up 0.4 - 1.0 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.95, 1.0 X I
n.
t1 Long time delay 3.0 - 18 sec A = 3, B = 6, C = 12, D = 18 seconds
I
Instantaneous trip 1.5 - 12.0 1.5, 2.0, 4.0, 6.0, 8.0, 10.0, 12.0 X I
n
I
n
= 800 Amps for IS-2200CA
I
n
= 1200 Amps for IS-4500CA
*See circuit breaker front panel for dipswitch settings.
Setting L
Calculate the breaker rated current using the Effective secondary current and duty cycle of the weld
schedule.
DC is the duty cycle of the weld schedule in percent.
Example: Output current is 500amps @ a duty cycle of 15%.
Breaker should be set at 114 amps or more.
Set the L dipswitch to 125 amps (.5) or 150 amps (.6).
Example: Output current is 350 amps @ a duty cycle of 20%.
Breaker should be set at 128 amps or more.
Set the L dipswitch to 150 amps (.6) or 175 amps (.7).
Setting t1 Set to 3 seconds (A). This setting should require no further adjustment.
Setting I Set to 4.0 as the maximum peak current is 1000 amps.
NOTE:
If circuit breaker nuisance trips, set L higher or set I to 6.