Adjustment To Timers With / Without Ksr Module And Ssu Function; Ramp Time Constant - Bosch PSU 5000 Series Instructions For Assembly And Operation Manual

Adjustment
functions

9.6 Adjustment to timers with / without KSR module and SSU function

9.7 Ramp time constant

9--4
PSU 5000 / PSG 3000
Instructions for Assembly and Operation
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.
1
2
S2
3
4
On Off
Setting of the ramp time constant (slope) of the welding current (cf. also sec-
tion 6.3).
1
2
S3
3
4
On Off
` 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.
Connection of a timer without SSU function: OFF position
Connection of a timer with SSU function: ON position
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
1070 078 224--- 109