ABB AC 31 Technical Manual page 140

ABB Control - AC 31
1SBC 260400 R1001-b 06.99
Programming
Filtering time
0 : internal filter according to the documentation of analog extension
1-127 : integration number
192 : 60Hz Filter
224 : 50Hz Filter
All channels of one extension will be affected by this parameter.
The time filter formula is
K=FILT0
Vn= result (T)
Vn-1=result (T-1)
Vins=analog value without filtering
Vn= Σ n/ K
With Σ n=(Vins –Vn-1) + Σ n-1
Initial value is : V1=Vins
Σ
K V
=
1
WARNING: The second extension XM06B5 connected to a remote unit can not be configured
by the user program.
Only one analog extension can be configured on a remote unit.
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