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A U TO M AT I C C O N T R O L U N I T S , O M D 2 0 0 - 3 0 0
—
9
Troubleshooting
—
9.1
OMD200, OMD300
State
Switching from
position I to
position
O fails. After 3
seconds the Alarm
LED blinks and the
I
LED is ON.
Switching from
position II to
position
O fails. After 3
seconds the Alarm
LED is blinking and
the II LED is ON.
Switching from
position O to
position
I fails. After 3
seconds
the Alarm LED and
the I LED are
blinking.
Switching from
position O to
position
II fails. After 3
seconds the Alarm
LED and the II LED
are blinking.
Table 9.1
Fault situations in OMD200 or OMD300
—
9.2 Explanations of internal faults OMD200, OMD300
When digital Input 1 and 2 are both active, logic is locked and the Alarm LED is ON.
When digital Input 3 is active, logic is locked and the Alarm LED is ON.
Action
The alarm can be reset by pressing the AUTO key.
If the alarm does not disappear, please check that the handle has been removed
from the change-over switch and the change-over switch is not padlocked from
the front panel.
If the alarm can be reset but it activates again after trying to operate the switch,
please check that the Motor/Manual selector of the change-over switch (only
with motorized change-over switches OTM160...2500_CM) is in Motor (M)
position and check the fuse (F1) of the motor operator
The alarm can be reset by pressing the AUTO key.
If the alarm does not disappear, please check that the handle has been removed
from the change-over switch and the change-over switch is not padlocked from
the front panel.
If the alarm can be reset but it activates again after trying to operate the switch,
please check that the Motor/Manual selector of the change-over switch (only
with motorized change-over switches OTM160...2500_CM) is in Motor (M)
position and check the fuse (F1) of the motor operator.
The alarm can be reset by pressing the AUTO key.
If the alarm does not disappear, please check that the handle has been removed
from the change-over switch and the change-over switch is not padlocked from
the front panel.
If the alarm can be reset but it activates again after trying to operate the switch,
please check that the Motor/Manual selector of the change-over switch (only
with motorized change-over switches OTM160...2500_CM) is in Motor (M)
position and check the fuse (F1) of the motor operator
The alarm can be reset by pressing the AUTO key.
If the alarm does not disappear, please check that the handle has been removed
from the change-over switch and the change-over switch is not padlocked from
the front panel.
If the alarm can be reset but it activates again after trying to operate the switch,
please check that the Motor/Manual selector of the change-over switch (only
with motorized change-over switches OTM160...2500_CM) is in Motor (M)
position and check the fuse (F1) of the motor operator.
43
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