Hitachi SJ700-4000HFU2

Chapter 4 Explanation of Functions
4-74
4.2.82 AM and AMI terminals
You can monitor the inverter output frequency and output current via the AM and
AMI terminals on the control circuit block.
The AM terminal outputs an analog voltage signal (0 to 10 V).
The AMI terminal outputs an analog current signal (4 to 20 mA).
The early precision is +-20%. Please adjust it as needed.
(1) AM siginal selection /AMI signal selection
Select the signals to be output from the AM and AMI terminals among those shown below.
Item
Function code
Data
Description
Full-scale value
[AM] siginal
selection /
[AMI] siginal
selection
C028/C029
00
Output frequency (*3)
0 to maximum frequency (Hz)
01
Output current
0 to Rated Output current ×2.0
02
Output torque (*1)
0 to Rated Output torque ×2.0
04
Output voltage
0 to Rated Output voltage ×1.33
(75% of full scale is equivalent to 100%)
05
Input power
0 to Rated Input power ×2.0
06
Electronic thermal overload
0 to 100%
07
LAD frequency
0 to maximum frequency (Hz)
09
Motor temperature
0ºC to 200ºC (0ºC is output when the motor
temperature is 0ºC or less.)
10
Heat sink temperature
0ºC to 200ºC (0ºC is output when the motor
temperature is 0ºC or less.)
11
Output torque (signed) (*1) (*2)
(Output only from the AM terminal)
0 to Rated Output torque ×2.0
13
General analog YA (1) (*4)
(Output only from the AM terminal)
0 to 100%
14
General analog YA (2) (*4)
(Output only from the AMI terminal)
0 to 100%
*1 This signal is output only when the V/F characteristic curve selection
(see Section 4.2.18) is the sensorless vector control, 0Hz-range
sensorless vector control, or vector control with sensor.
*2 The voltage range is 0 to +10V(positive-going only),regardless of
forward or reverse moter rotation. In addition, please do offset
adjustment when this outputs negative-going of the output torque (signed).
*3 The actually detected output frequency is output when the V/F
characteristic curve selection is the vector control with sensor (A044 = 05).
*4 For detail of the function, refer “Programing software EZ-SQ user manual”.
(2) AM/AMI adjustment
The early precision is +-20%. Please adjust it as needed.
Adjust the inverter output gain for the external meters connected to the AM and AMI terminals.
Item
Function code
Range of data
Description
AM gain adjustment
C106
50. to 200. (%)
Setting of the gain for AM monitoring
AM offset adjustment
C109
0 to 100 (%)
Setting of the offset for AM monitoring
AMI gain adjustment
C107
50. to 200. (%)
Setting of the gain for AMI monitoring
AMI offset adjustment
C110
0 to 100 (%)(*1)
Setting of the offset for AMI monitoring
*1 When the current range of AMI terminal output is 4 to 20 mA, the offset of 4 mA is approximately 20%.
The adjustment is the following procedure. (In the case of AMI, it is similar)
a. In a state of C028=00, and please run moter at the maximum frequency.
b. Adjust offset C109 first, and then use C106 to set the voltage for full scale output.
Note: In the case of use, please do the setting that had room not to be able to shake off a meter across the rating
either in C028=01,02,04.
C028: [AM] siginal selection
C029: [AMI] siginal selection
C106: AM gain adjustment
C109: AM offset adjustment
C108: AMI gain adjustment
C110: AMI offset adjustment
Related code
Full scale (FS)
AM output
10V
0
C109=0~100
Parallel
movement
AM output offset adjustment
high number
Full scale (FS)
AM output gain adjustment
AM output
10V
0
C106=50.~200.
low number
200
100
torque (%)
AM output
(V)
(C109)=50%
10
5
0
(C106)=200%
(C106)=100%
(*2)