ABB OMD800 - Page 40

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AUTOMATIC CONTROL UNIT, OMD800
Digital Outputs
User can congure Function and Contact Type (NO/NC) for Digital Outputs 6-10 and Digital Output 12.
Available functions are described in Table 7.6. Factory settings are described in Section 5.2.1.
Device Configuration
Digital Inputs
Digital Outputs
Voltage Tresholds
2/12
A07142
Digital Outputs
Digital Output 6
Digital Output 7
Digital Output 8
1/6
A07143
Figure 7.27 Digital Outputs, user can configure Function and Contact Type for Digital Outputs 6-10
and Digital Output 12
Digital Outputs 6-10 and 12, Function
Table 7.6 The available Functions for Digital Outputs 6-10 and 12
1)
Digital outputs 6-10 and 12, Function Disconnect secondary loads can be only controlled via Modbus communication interface.
This way user can have different loads which can be controlled independently via Modbus communication interface.
Function Description
No function Digital output disabled
Emergency/alarm Digital output to signal changeover switch control failure, handle
attached, external fault or generator alarm.
Line I status Digital output to signal status of the Line 1
Line II status Digital output to signal status of the Line 2
Change-over switch alarm Digital output to signal changeover switch control failure
Manual mode Digital output to signal manual operating mode
Disconnect secondary loads
1)
Digital output to control disconnection of the secondary loads
Pre-transfer Signal Digital output to signal upcoming switching from I to II or from II
to I
I Status Digital output to signal switch position I
O Status Digital output to signal switch position O
II Status Digital output to signal switch position II