Bosch PSG 3000 Series, Инструкция по сборке и эксплуатации

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PSU 5000 / PSG 3000
Adjustment
functions
Instructions for Assembly and Operation
1070 078 224--- 109
9--4
9.6 Adjustment to timers with / without KSR module and SSU function
If switch S2/1 is in ON position, the internal ohmic resistance of the PSU is switched
off, the measuring loop test in the PSU is disabled. In this case, the measuring loop
test must be performed by the weld timer.
On Off
S2
1
2
3
4
Connection of a timer without SSU function: OFF position
Connection of a timer with SSU function: ON position
9.7 Ramp time constant
Setting of the ramp time constant (slope) of the welding current (cf. also sec-
tion 6.3).
On Off
S3
1
2
3
4
all switches OFF:
τ
= 2 ms
Sw. 1 ON. default setting
Sw. 2 ON: increase ramp time constant
Sw. 3 ON: increase ramp time constant
Sw. 4 ON: increase ramp time constant
`
S3/1 in ON position: default setting of ramp
`
S3/2 to S3/4 in ON position: increase ramp time constant
With a secondary line length > 5 m, S3/1, S3/3 and S3/4 should be set to OFF and
S3/2 to ON in order to avoid current overshoot and possible faults (seven--segment
display: 7) when the inverter current limit is reached.