Actual Values - ABB ACS 400 User Manual

Example of the effect of AI1 value on fieldbus reference.
Assume that 2008
MAXIMUM FREQ
Assume that fieldbus reference 1 is 5000 (corresponding to 25 % of full scale) and voltage at AI1 is
3 V (corresponding to 30 % of full scale).
1. If setting + 1 is used, then corrected fieldbus reference is 25 % + 30 % = 55 % or 27.5 Hz.
COMM AI
2. If setting * 1 is used, then corrected fieldbus reference is 25 % * 30 % / 100 % = 7.5 % or
COMM AI
3.75 Hz.

Actual Values

Actual values are read-only values containing information on the operation of the drive. Actual
values are 16-bit words containing sign bit and a 15-bit integer. A negative value is given as two's
complement of the corresponding positive value.
Actual Value 1
Holding Register: 40005
Actual output frequency. Scaling: 5000
Actual Value 2
Holding Register: 40006
Actual output current. Scaling: 10
ACS 400 User's Manual
= 50 Hz
50 Hz.
1 A.
131