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3.2 Monitoring of the secondary current with Bosch weld timers
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PSU 5000 / PSG 3000
Instructions for Assembly and Operation
U
PRIM
[1]
[2]
Primary voltage
setting range
[1] low current
I
SEC
[2] high current
In its standard mode, the inverter provides independent control of the welding cur-
rent depending on the firing angle or analog value setpoint.
The welding current can be displayed through the weld timer and a programming
unit equipped with the KSR option.
Thus, it is possible to monitor welding current tolerance limits.
Using the calibration function, the measured welding current can be adjusted to
your standardized ammeter and the current setpoint can be entered accordingly.
Programming the current tolerance is described in a separate Technical Informa-
tion "KSR--DYD / DYF" or the type--specific Technical Information brochures of the
respective timer module.
If a KSR module is used in the timer, a DIP switch at the inverter must be set ac-
cordingly (refer to Settings, section 6.4, and "Adjustment to Timers with / without
SSU function" Section 9.6).
Primary voltage
f = 1 kHz
Secondary current
Functional
description
t
[2]
I
mean value
[1]
t
3--3
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