Toshiba TOSVERT VF-AS3 Instruction Manual page 266

3) For setting voltage input of -10 to +10 V (terminal [RX]), refer to the following
figure.
4
4
Memo
6
9
Reference
6. 6. 3
<F470: RR input bias>
<F471: RR input gain>
<F472: RX input bias>
<F473: RX input gain>
<F474: II input bias>
<F475: II input gain>
<F476: AI4 input bias>
<F477: AI4 input gain>
<F478: AI5 input bias>
<F479: AI5 input gain>
■ Function
These parameters fine adjust the characteristics set in [6. 6. 2] "Setting frequency command
characteristics by analog signals".
6. [Advanced] How to use parameters
Output frequency (Hz)
<F213>
50/60(Hz)
-100%
Fwd
(-10V)
<F210>
Rev
<F107: Terminal RX input voltage select> = "-10 to +10 V"
• When you want to fine adjust the frequency command characteristics, adjust the bias and gain
of each input terminal at <F470: RR input bias>-<F479: AI5 input gain>. For details, refer to [6.
6. 3].
• When you want to set an analog signal for a frequency command, set at <FMOd: Frequency
command select 1> (or <F207: Frequency command select 2>).
1: Terminal RR
2: Terminal RX
3: Terminal II
4: Terminal AI4 (option)
5: Terminal AI5 (option)
• How to operate the operation panel -> Refer to [3. 1. 1].
• How to switch display mode on the operation panel -> Refer to [3. 1. 2].
• Procedure to change parameter setting -> Refer to [4. 2. 3].
• Details on operation by external signals -> Refer to [Chapter 7].
Fine adjusting the analog frequency commands
0(Hz)
Voltage signal (%)
<F212>
100%
(+10V)
<F211>
F470 : RR input bias
Min: 0
6-24
E6582062
STOP 0.0Hz
128
Max: 255
X1000 X100 X10
12:57
X1