SimStep Manual - 3400 Iss. D 7
th
June 2004 page 16
5 Power Supply Unit
The power supply unit used in this system has been designed to energise an MSE570
stepper drive and a PM600 Position Controller.
It provides the unregulated logic supply of +24V (nominal) to the PM600, and an
unregulated supply of +40V (nominal) to the MSE570.
There is a mains fuse fitted in the mains inlet, its rating is 2A anti-surge. There are two
front panel fuseholders that protect the DC outputs of the power supply. The rating of the
fuses are 3.15A for the motor rail and 1A for the logic rail.
The mains voltage may be changed from 230V to 115V by changing the position of the
links on the MSE779 PCB.
Fig. 5.1 Mains Voltage Selector
SEL1
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