ABB OMD800 Installation And Operating Instruction page 47

A U TO M AT I C C O N T R O L U N I T, O M D 8 0 0
Auto Switch to O
According to Auto Switch to O parameter the changeover switch is controlled to position O automati-
cally in case of Line 1 or Line 2 anomalies. Available parameter values are described in Table 7.9. Off is
the default.
Value
Off
LN1 to O
LN2 to O
LN1 & LN2 to O
Table 7.9 Values and description of Auto Switch to O
Device Configuration
Frequency Hysteresis
Delay Times
Auto Switch to 0
Figure 7.41 Auto Switch to O, Off is the default
Both OMD800 and motor operator of the change-over switch need to be energized to en-
able the automatic switching to position O.
LCD Backlight Timer
User can choose when to switch off the LCD backlight after the latest user interaction.
Device Configuration
Delay Times
Auto Switch to 0
LCD Backlight Timer
Figure 7.42 LCD Backlight Timer, Always On is the default
Description
Automatic switching to position O disabled
Automatic switching to position O in case of Line 1 anomaly.
Automatic switching to position O in case of Line 2 anomaly
Automatic switching to position O in case of Line 1 or Line 2 anomaly.
8/12
Auto Switch to 0
Cancel
9/12
LCD Backlight Timer
Cancel
Off
OK Edit
Always On
OK Edit
47