What Happens If …?
116
02/11 MN05006002Z-EN
Defect in the case of an insufficient contactor supply.
In the contactor supply if the 24 V DC control voltage drops
below the minimum voltage of 19.2 V DC or exceeds the
maximum current of 3 A, the secure switching of a contactor
is no longer guaranteed. The switching command from the
controller may remain without any effect. The mechanical
switch position indicator of a DIL-SWD-32-… module shows
unambiguously the actual switch position.
Behavior of SmartWire-DT
function elements
M22-SWD…
The status of an SmartWire-DT function element M22-
SWD… is signalled optically via the green SWD-LED with a
diameter of 3 mm on the rear panel.
Table 25:
Diagnostics with the aid of the green SWD LED on the
rear panel
Event
Explanation
Remedy
LED green
continuous
light
Fault-free operation, data exchange
OK.
–
LED off
No 15 V DC device voltage via the
SmartWire-DT network or the
M22-SWD… or LED is defective.
Check the power supply or M22-SWD….
function element
LED green
flashing (1 Hz)
No data exchange with the Smart-
Wire-DT gateway
The M22-SWD… may not be in the
target configuration or the SmartWire-DT
gateway is just creating a target configu-
ration.
LED green fast
flashing (3 Hz)
Defect in the M22-SWD…
Determine or evaluate the defect by
means of a detailed slave diagnostics in
the control program.
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