Yaskawa Matrix Converter - Manual (Page 190)

Adjusting Frequency References
6-
25
Adjusting Frequency References
This section explains methods of adjusting frequency references.
‹ Adjusting Analog Frequency References
Gain and bias are among the parameters used to adjust analog inputs.
„ Related Parameters
Parameter
Number
Name
Description
Setting
Range
Default
Change
during
Run
Control Methods
Display V/f
Open
Loop
Vector
Flux
Vector
H3-01
Terminal A1 Sig-
nal Level Selection
Sets the signal level of terminal A1.
0: 0 to 10VDC
1: -10 to +10VDC
[11-bit plus polarity sign]
0 or 1 0 No A A A
Term A1 Lv1 Sig-
nal
H3-02
Terminal A1 Gain
Setting Sets the output level when 10 V is input, as a
percentage of the maximum output frequency
(E1-04).
0.0 to
1000.0
100.0% Yes A A A
Terminal A1 Gain
H3-03
Terminal A1 Bias
Setting Sets the output level when 0 V is input as a
percentage of the maximum output frequency
(E1-04). -100.0
to
+100.0
0.0% Yes A A A
Terminal A1 Bias
H3-04
Terminal A3 Sig-
nal Level Selection
Sets the signal level of terminal A3.
0: 0 to 10 VDC
1: -10 to +10 VDC
0 or 1 0 No A A A
Term A3 Signal
H3-05
Terminal A3 Func-
tion Selection
Select multi-function analog input function
for terminal A3. Refer to the next page.
0 to 1F 2 No A A A
Terminal A3 Sel
H3-06
Terminal A3 Gain
Setting
Sets the output level when 10 V is input.
0.0 to
1000.0
100.0% Yes A A A
Terminal A3 Gain
H3-07
Terminal A3 Bias
Setting
Sets the frequency reference when 0 V is
input.
-100.0
to
+100.0
0.0% Yes A A A
Terminal A3 Bias
H3-08
Terminal A2 Sig-
nal Level Selection Selects the signal level of terminal A2.
0: 0 to 10 VDC (switch S1-2 must be in the
off position).
1: -10 to +10 VDC (switch S1-2 must be in
the off position).
2: 4 to 20 mA (switch S1-2 must be in the on
position)
Note: Switch between current or voltage
inputs by using (S1-2) switch on the
terminal board.
0 to 2 2 No A A A
Term A2 Signal
H3-09
Terminal A2 Func-
tion Selection
Select multi-function analog input function
for terminal A2. Refer to the next table.
0 to 1F 0 No A A A
Terminal A2 Sel
H3-10
Terminal A2 Gain
Setting
Sets the output level when 10V is input.
0.0 to
1000.0
100.0% Yes A A A
Terminal A2 Gain
H3-11
Terminal A2 Bias
Setting
Sets the output level when 0V is input.
-100.0
to
+100.0
0.0% Yes A A A
Terminal A2 Bias