User Guide

Overcurrent/overvoltage protection
The low-voltage power supply has a protective function against overcurrent and overvoltage to prevent
failures in the power supply circuit. If an overcurrent or overvoltage condition occurs, the system
automatically cuts off the output voltage.
If the DC power is not being supplied from the low-voltage power supply, the protective function might
be running. In such case, turn off the power switch and disconnect the power cable. Do not connect the
power cable or turn on the power switch again until the cause is found.
WARNING! If you believe the overcurrent or overvoltage protection circuits have been activated, do
not connect the product power cable or turn on the product power until the cause of the failure is found
and corrected.
In addition, two fuses in the low-voltage power supply protect against overcurrent. If overcurrent flows
into the AC line, the fuses melt and cut off the power distribution.
For safety reasons, the product interrupts power (24 V) to the main motor and high voltage power
supply. The interloct switch is turned off to interrupt power when the cartidge door opens (SW260 is
turned off). The AC voltage remains present in the product when the power switch is in the off position.
Disconnect the power cable when disassembling the product.
NOTE: An accidental electrical short while servicing the product can result in a loss of power to the
product causing the control panel to shut down (blank out). Turn the product power off, and then
unplug the power cord. Wait at least 15 minutes before plugging the power cord in and turning the
product power on.
ENWW
Engine-control system
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