ABB OMD800 Installation And Operating Instruction page 39

A U TO M AT I C C O N T R O L U N I T, O M D 8 0 0
Digital Inputs 4-7, Function
Function
No function
Emergency stop
Inhibit switching I to II
Remote control to O
Remote control to I
Remote control to II
Inhibit remote control
Generator alarm
Force commutation
External generator start
Status of secondary loads
Manual back switching mode
Remote reset
Line Priority I
Line Priority II
External Alarm
Table 7.5 The available Functions for Digital Inputs 4-11
Digital Input 4
Function
Contact Type
Figure 7.25 Digital Input 4 - Function, Remote Control to I is the default
Digital Input 4
Function
Contact Type
Figure 7.26 Digital Input 4 – Contact Type, NO is the default
Description
Digital input disabled
Digital input to command changeover switch to position O in
case of emergency, overrides all other commands
Digital input to prevent switching from Line 1 to Line 2
Digital input to command changeover switch to position O in
AUTO mode
Digital input to command changeover switch to position I in
AUTO mode
Digital input to command changeover switch to position II in
AUTO mode
Digital input to inhibit all remote control commands
Digital input to indicate generator failure
Digital input to force switching from primary to secondary line in
AUTO mode
Digital input to start generator externally
Digital input to connect feedback from secondary loads control
device
Digital input to prevent automatic switching to primary line
Digital input to reset active alarm
Digital input to set priority to Line 1
Digital input to set priority to Line 2
Digital input to indicate external alarm
1/2
DI4 Function
Remote Control to I
Cancel
2/2
DI4 Contact Type
Cancel
OK Edit
NO
OK Edit
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