Adjusting Frequency References; Adjusting Analog Frequency References - YASKAWA Varispeed G7 Series Instruction Manual

Adjusting Frequency References

This section explains methods of adjusting frequency references.


Adjusting Analog Frequency References

Gain and bias are among the constants used to adjust analog inputs.
Related Constants
Con-
stant
Number
H3-01
H3-02
H3-03
H3-04
H3-05
H3-06
H3-07
H3-08
-28
6
Name
Description
Display
Signal level
0: 0 to 10 V
selection (ter-
1: -10 to 10 V
minal A1)
[11-bit + polarity (positive/
negative) input]
Term A1 Signal
Gain (terminal
Sets the frequency when 10 V is
A1)
input, as a percentage of the maxi-
Terminal A1
mum output frequency.
Gain
Bias (terminal
Sets the frequency when 0 V is
A1)
input, as a percentage of the maxi-
Terminal A1
mum frequency.
Bias
Signal level
0: 0 to 10 V
selection (ter-
1: -10 to 10 V
minal A3)
[11-bit + polarity (positive/
negative) input]
Term A3 Signal
Multi-function
analog input
(terminal A3)
Select multi-function analog input
function selec-
function for terminal A3.
tion
Terminal A3
Sel
Gain (terminal
Sets the input gain (level) when
A3)
10 V is input.
Set according to the 100% value
Terminal A3
selected from H3-05.
Gain
Bias (terminal
Sets the input gain (level) when
A3)
0 V is input.
Set according to the 100% value
Terminal A3
selected from H3-05.
Bias
Signal level 0: 0 to 10 V
selection 1: -10 to 10 V
(terminal A2) 2: 4 to 20 mA (9-bit input).
Switch current and voltage input
using the switch on the control
Term A2 Signal
panel.
Control Methods
Change
Setting Factory during
V/f
Range Setting Opera-
V/f with
tion
PG
0 or 1 0 No A A
0.0 to 100.0
Yes A A
1000.0 %
-100.0
0.0% Yes A A
to
+100.0
0 or 1 0 No A A
0 to 1F 2 No A A
0.0 to 100.0
Yes A A
1000.0 %
-100.0
to 0.0% Yes A A
+100.0
0 to 2 2 No A A
MEMO
Open Open
BUS
Flux
Loop Loop
Regis-
Vec-
Vector Vector
ter
tor
1 2
A A A 410H
A A A 411H
A A A 412H
A A A 413H
A A A 414H
A A A 415H
A A A 416H
A A A 417H