5
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5.1.2 Independent operation
No connection to the IO-Link master. If there is no connection to the IO-Link
master when the operating voltage has been applied, the supply module transfers
the parameter data to the connected circuit protection modules. The behaviour
of the connected circuit protection modules is controlled via the configuration
of the supply module. Either the status of the circuit protection modules is kept
(FREEZE) or the circuit protection modules are switched off (UNFREEZE). If there
is again connection to the IO-Link master and no fault occurred, the device goes
to the "correct operation" mode.
5.1.3 Uncritical error
No valid configuration data is available. The connected circuit protection modules
remain switched off. Cyclic data exchange is not possible, acyclic data exchange
is conditionally possible. After the device has received the valid configuration and
parameter data, it quits this operating mode.
5.1.4 Critical error
During initialisation an error is found or a critical error occurs. Communication with
the IO-Link master is not possible. The connected circuit protection modules are
and remain switched off.
► Reboot the device.
5.1.5 System start
The supply module is initialised when the operating voltage is applied. During this
time communication with the IO-Link master is not possible.
5.2 DF22xx circuit protection modules
The different operating states of the circuit protection modules are indicated by
LEDs.
—
off
missing operating voltage,
error in initialisation or
channel switched off via button
off
Green
on
channel switched on via button or IO-
Link, no error
on
Green/
orange
flashing
load current limit reached
on
