ABB OMD100 - Page 29

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AUTOMATIC CONTROL UNIT, OMD100
AUTOMATIC CONTROL UNIT, OMD100
Switch in position I (I)
A red I LED is ON, when the motorized change-over switch OTM_C is in the I position (the I-switch
is ON and the II-switch is OFF), the LED is OFF otherwise. If transition from the O position to the I
position fails, the I LED will blink.
Switch in position II (II)
A red II LED is ON, when the motorized change-over switch OTM_C is in the II position (the II-switch
is ON and the I-switch is OFF), the LED is OFF otherwise. If transition from the O position to the II
position fails, the II LED will blink.
Alarm
A red Alarm LED signals an external alarm. Alarm status is explained in the Table 7.2. An active alarm
is set off by pushing the AUTO key.
Alarm Status LED Indication
Handle attached ON
Switching logic alarm Blinking
No alarm OFF
Table 7.2 Alarm status indication
NOTE: When the handle is removed, the automatic control unit will stay in manual mode and the
Alarm LED will be OFF.
When the Alarm LED is ON or blinking, check the state of the motorized change-over switch
and repair the possible fault situation. An active alarm is set off by pushing the AUTO key.
Auto
A green Auto LED signals the automatic or the manual mode. When the OMD100 is in automatic
mode, the Auto LED is ON. When the device is in manual mode, the Auto LED is OFF. In test
sequence the Auto LED is blinking.
Power
A green Power LED signals the power status. When power is ON, the Power LED is ON.