Hitachi SJ7002 Series Instruction Manual page 230

4–68
Analog Output Operation
[AM] and [AMI]
Terminals
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].
Func. Terminal Code
00
01
02
C028 / [AM] /
04
C029 [AMI]
05
06
07
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.
Func. Terminal
B080 [AM]
C086 [AM]
C087 [AMI]
C088 [AMI]
A GND
0–10V analog output
4–20mA analog output
Description
Output frequency
Output current
Output torque *1
Output voltage
Input electric power
Thermal load ratio
LAD frequency
Description
Gain adjustment
Offset Adjustment
Gain adjustment
Offset Adjustment
FM
H O2 AM
AMI
L O OI
See I/O specs on page 4–9.
Full Scale Value
0 – Max. frequency (Hz)
0 – 200%
0 – 200%
0 – 100%
0 – 200%
0 – 100%
0 – Max. frequency (Hz)
Range Default
0 – 255 180
0.0 – 10.0V 0.0V
0 – 255 80
0.0 – 20.0mA 0.0mA