Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
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Operation
6
6.1
Organizational measures
The HMI device should only be operated in the system with a battery or in the charging
station.
To ensure fail-safe operation of the HMI device the organizational measures described
below must be complied with.
Storing the HMI device
WARNING
Non-functional emergency stop button
If the HMI device is not integrated, the emergency stop button does not function.
To avoid confusion between effective and non-effective emergency stop buttons, only one
integrated HMI device should be freely accessible.
If the HMI device is not in use, it must be stored in a locked area.
Handling the HMI device during operation
CAUTION
Shutdown or rampdown of the system due to empty battery
An integrated HMI device with flat battery triggers a communication error. This results in the
following reaction of the F CPU:
•
If the HMI device is logged on at the effective range: Shutdown
•
If the HMI device is not logged on at the effective range: Global rampdown
Check the charge status of the battery of the ready-for-operation device via the "BAT" LED.
•
Recharge the HMI device in good time.
To charge the batteries, the ambient temperature / battery temperature must not exceed
40 °C The higher the temperature, the longer it will take for the battery to charge.
Find a place with a cool ambient temperature for the charging station. If necessary,
allow the battery to cool first. You can check the battery temperature in the "OP" dialog
box, "Battery" tab in the Control Panel.
Alternatively, change the main battery.