-- 48 --
1sxx02cw
Checking pre charging circuit
After few second from turning the power on led diode V4 should light up, and contactor K1
should switch on.
If not, an error message should be displayed (error nr 5). Check the pre--charging circuit , If
voltage on chopper capacitors is more than 45V V4 should light on. Check voltage on pin
A3:A in reference to GND -- should be more than 7.5V. If V4 led light on, but error is still
displayed check voltage between X2.5--X2.6, should be less than 1V.
Checking Fan Circuit
Fan should operates during all processes. Turning on also can be done by ESAT software:
Service function 13.
Argument 2 = 0, Fan off
Argument 2 = 0xFF, Fan full speed
If fan is on the voltage between X7:4 and X7:2 should be about 24V.
Be Careful! High Mains Voltage is on X8 connector.
When fan is off voltage between X8:A -- X8:B should be about 230V
When on -- 0V
High speed is on when temperature sensor B3 closes -- working of that circuit can be
checked by shorting X7:2--X7:1 -- then K4 closes and fan operates on high speed. When
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