ABB ACS 400 - Analog Input; Binary Input; Analog Output

Chapter 4 – Programming
4-2 ACS/ACH 400 Direct N2 Bus Interface
The ACS/ACH 400 drive does not have any
internal values for the N2 Bus communication.
A complete list of the Analog and Binary I/O
points is shown in the Appendix A.
Analog Input
The analog input points support the following
features:
• Analog Input actual value in engineering
units
• Low Alarm limit
• Low Warning limit
• High Warning limit
• High Alarm limit
• Differential value for the hysteresis of
the Alarms and Warnings
• Change of State (COS) enabled
• Alarm Enabled
• Warning Enabled
• Override value is received, but there is
no action taken.
Binary Input
The binary input points support the following
features:
• Binary Input actual value
• Normal / Alarm state specification
• Alarm Enabled
• Change of State (COS) enabled
• Override value is received, but there is
no action taken.
Analog Output
The analog output points support the following
features:
• Analog Output value in engineering units
• Override value is used to change the
Analog Output value. It is not possible to
return to the previous value by removing
the override. The override feature is
used only to change the value.