Fuji Electric Frenic lift, Reference Manual

Page: 96 / 254

2.3 Overview of Function Code
C
hap.
2
FUN
CT
IO
N
C
O
D
E
S
■
Operation examples
The following graphs show operation examples using the gain and offset settings.
Current input or non-polar voltage input makes shaded areas invalid (as 0 V or 4 mA), and polar
voltage input makes the shaded areas valid.
Analog input command
Analog
input
100%
reference
point
-10V
-100%
reference
point
0%
200% gain
200%
reference
point
-200%
reference
point
100% gain
50% gain
Analog input command
Analog
input
100%
reference
point
0V
(4 mA)
10V
(20 mA)
-10V
-100%
reference
point
0%
-50% offset
200%
reference
point
-200%
reference
point
0% offset
60% offset
Analog input command
Analog
input
100%
reference
point
-10V
-100%
reference
point
0%
80% gain and
-60% offset
200%
reference
point
-200%
reference
point
100% gain and
0% offset
200% gain and
40% offset
Adjust gain with 0% offset Adjust offset with 100% gain
Adjust offset and gain
-11V 11V -11V 11V
-11V
11V 10V
(20 mA)
10V
(20 mA)
0V
(4 mA)
0V
(4 mA)
■
Filter time constant (C33, C38, and C43)
These function codes specify the filter time constant for analog input voltage or current on terminals
[12], and [V2]. Increasing the filter time constant delays the response from machinery or equipment,
and that is, the time constant should be specified considering speed response. If the input voltage
fluctuates due to noise, large filter time constant attenuates it.
- Data setting range: 0.000 to 5.000 (s)
C89 Setpoint factor (Numerator) via communication
C90 Setpoint factor (Denominator) via communication
These function codes specify the ratio for the reference speed (pre-ramp) sent via RS-485 or CAN
communications.
Actual reference speed (pre-ramp) = Reference speed (pre-ramp) via communications
×
𝐶89
𝐶90
- Data setting range: -32768 to 32767
 For details, refer to the descriptions of Chapter 1 Figure 1.1
2-83