Overview
1.4 Operator controls
SIMATIC IPC547E
18 Operating Instructions, 02/2014, A5E32317120-AB
The following figure shows the connections for the power supply for devices with single or
redundant power supply.
The on/off button and on/off switch do not fully disconnect the device from the mains. If the
device is switched off with the on/off switch, there remains a risk of electric shock and fire
hazard, for example, if the device or connection cables are damaged or if the device is
used improperly.
Always fully disconnect the device from the mains voltage as follows before performing
work on the device or when the device will not be used over an extended period of time:
• Pull the power plug on the rear of the device.
• For control cabinet mounting:
Take additional precautions, for example, by using a circuit breaker.
Read the information in section "Switching off the device (Page 53)".
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