Manualshelf

Operating instructions

ManualsBrandsSiemens ManualsComputer equipmentPC 677B
81828384858687888990
SIMATIC Panel PC 677B
Operating Instructions, 05/2007, A5E01035609-01
81
Operation
10
10.1 Status indicators
The two LEDs on the upper left hand side of the control panel display the operating status:
● LED "POWER" green: Active voltage
● LED "TEMP" orange: Temperature threshhold exceeded. The maximum temperature
threshold is preset and cannot be changed.
Refer to the "Functions" chapter for more information.
10.2 General control elements
On / Off switch
On / Off switch Description
The On/Off switch does not disconnect the device from
supply voltage. When the switch is in 0 position (Off), the
device is still connected to the auxiliary voltage.