Hitachi SJ300-037HFE 사용자 설명서

Analog Output Operation

Oper

ations

a

nd Moni

tor

ing

The [AM] and [AMI] terminals provide signals 
to monitor various inverter parameters such as 
output frequency, output current, and torque. 
The terminals provide these analog signal types:

• [AM] terminal: 0–10V analog output signal

• [AMI] terminal: 4–20mA analog output 

signal

These signals both use the [L] terminal for signal 
return. Eight different inverter parameters may 
be monitored independently at either the [AM] 
or [AMI] terminal, as listed in the table below. 
Use C028 to configure terminal [AM], and C029 
to configure terminal [AMI].

Note 1: Display of torque is possible only during sensorless vector control, 0Hz domain 

sensorless vector control, and vector control with feedback

The analog signals may need some adjustment for gain or offset to compensate for variances in 
the system. For example, the signals may drive a panel meter and require a full-scale gain 
adjustment. The table below lists the function codes and their descriptions. The [AM] and 
[AMI] terminals have separate gain and offset adjustments. Note the default values. 

C028 / 

C029

[AM] / 

[AMI]

00

Output frequency

0 – Max. frequency (Hz)

01

Output current

0 – 200%

02

Output torque *1

0 – 200%

04

Output voltage

0 – 100%

05

Input electric power

0 – 200%

06

Thermal load ratio

0 – 100%

07

LAD frequency

0 – Max. frequency (Hz)

B080

[AM]

Gain adjustment

0 – 255

180

C086

[AM]

Offset Adjustment

0.0 – 10.0V

0.0V

C087

[AMI]

Gain adjustment

0 – 255

80

C088

[AMI]

Offset Adjustment

0.0 – 20.0mA

0.0mA

H O2

FM

AM

O

OI

L

AMI

A GND

See I/O specs on page 

0–10V analog output

4–20mA analog output