VCS-AGT-U/I
9.12.14
Kapitel/Chapter 10: VCS-AGT-U/I - Seite/Page 165
10.4.5 Checking the current limiting
For this test an ampere pliers is needed (DC or a multimeter mV/V) in order to control the generator output current,
as well as a multimeter with a DC millivolt range. The batteries must be unloaded (avoid deep discharge of the
batteries) to make sure, that the generator is able to supply the maximum output capacity. Keep the generator
running and control the DC output current. Measure the voltage signal at the clamps 9 and 10 of the VCS cover by
means of a multimeter, which measures millivolt. Check the polarity of this signal. With generators older than 2003,
the maximum DC voltage is 60 millivolt. With generators from 2003 upwards the DC voltage is 48 millivolt - this is
80 % of the maximum permanent current. If this signal is exceeded, check the correct connection of the shunt signal
cable and the polarity of the shunt signal to the VCS cover.
For setting the charging current resp. the voltage, load should be switched on with a nominal capacity of the
generator. Now, the charging current must be measured and set to 100 amps by the potentiometer, in order to
operate the engine in its nominal capacity range.estrom
Fig. 10.4-1: Potentiometer charging current
Readout potentiometer for the charging voltage
1. Potentiometer for setting the charging voltage
Turn to the right for increasing the charging voltage.
The factory setting is only to be changed by a technician.
1
