-
4
Checking the power
Stage
The measurements described below are to be
carried
out only by
skilled
specialists. Use a digital Voltmeter. The measuring
values
indicate the nominal value. If they are different, there is a
defective.
4.1
Checking the mains rectifier
Disconnect controller from the mains and wait
until
the DC bus has
discharged (approx. 3 minutes). You
tan
measure directly at the
power terminals.
?ii%E
Diodes in reverse
-UG
-+
L2
-UG+
L3
+UG
-i
Ll
Measuring value
=
0.4v
-
0.4v
=
0.4v
=
0.4v
=
0.4v
i=
0.4v
high-resistance (OL)
high-resistance (OL)
high-resistance (OL)
high-resistance (OL)
high-resistance (OL)
high-resistance (OL)
4.2
Checking the power
Stage
Disconnect controller from the mains and wait
until
the DC bus has
discharged (approx. 3 minutes).
You
tan
measure directly at the power terminals.
Measurement
Controller
diode
in forward direction
Diodes in reverse
direction
Controller diode in
forward direction
Groller
diode
in reverse direction
Measuring
Point
U-++UG
V-++UG
W-++UG
UG-tU
UG-i
V
UGi
W
-UG-+U
-UG+
V
-UG+
W
UI-UG
V I -UG
W-F-UG
Measuring value
=
0.4v
=
0.4v
=
0.4v
high-resistance
high-resistance
high-resistance
=
0.4v
=
0.4v
=
0.4v
high-resistance
high-resistance
high-resistance
4.3
Checking the voltage supply on the control
board 8602MP
Inhibit controller
Remarks
Measuring
Point
+vcc
15 Term.
20
-+Term.
40
+Vref
10 V Term.
9
+Term.
40
-Vref
10 V Term.
10
-+Term.
40
Measurlng value
+14.25
V...+15.75
V
+9.79
v...+10.21
v
-9.79 v... -10.21 v
hze
151
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