Lenze 8615E - Manual (Page 153)

4 Checking the power
The measurements described below are to be out only by
specialists. Use a digital Voltmeter. The measuring
indicate the nominal value. If they are different, there is a
4.1 Checking the mains rectifier
Disconnect controller from the mains and wait the DC bus has
discharged (approx. 3 minutes). You measure directly at the
power terminals.
Diodes in reverse
-UG L2
L 3
+UG
Measuring value
=
high-resistance (OL)
high-resistance (OL)
high-resistance (OL)
high-resistance (OL)
high-resistance (OL)
high-resistance (OL)
4.2 Checking the power
Disconnect controller from the mains and wait the DC bus has
discharged (approx. 3 minutes).
You measure directly at the power terminals.
d i o d e
i n f o r w a r d d i r e c t i o n
Diodes in reverse
d i r e c t i o n
C o n t r o l l e r d i o d e i n
forward direction
d i o d e
in reverse direction
Measuring
V
W
V
W
V I - U G
M e a s u r i n g v a l u e
high-resistance
high-resistance
high-resistance
high-resistance
high-resistance
high-resistance
4.3 Checking the voltage supply on the control
board 8602MP
Inhibit controller
Remarks Measuring
+vcc 1 5 T e r m . 20 40
+Vref 1 0 V T e r m . 9 40
1 0 V T e r m . 10 40
M e a s u r l n g v a l u e
V
v
-9.79 v... -10.21 v
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