powersoft M-Drive Service Manual page 13

Switching the Module ON in AC
Remove al previously made connections.
Connect a variac to the PL15 Connector, and slowly
increase the voltage to 120 VAC.
Checking the Rail's Voltages in AC (With Load)
Connect the Function Generator
Board. (Fig. 15)
Turn the potentiometer completely clockwise.
Feed the module with a 50Hz 8/32 Burst Sine Wave @ 1 V
(0 dBV, 2.21 dBu) amplitude.
With a multimeter set to V, check the tensions on the
KT000291 interface board
highlighted on (Fig. 117)
+VCCMON 1/2: +75 Vdc ±5% (+150Vcc)
-VCCMON 1/2: -75 Vdc ±5% (-150Vcc)
to the module's DPC
rms
by probing on the points
(Fig. 12)
(Fig. 15)
V
(Fig. 17)
M-Drive | SERVICE MANUAL
13