Hitachi SJ300 Series [AM] and [AMI] Terminals, Func, Code, Func, Range, Note 1:, Default, Terminal, Terminal, Description, Description, Full Scale Value

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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].

HO2 AM FM

L O OI AMI

A GND

0–10V analog output

4–20mA analog output

See I/O specs on page 4–9.

Operations and Monitoring

Func.	Terminal	Code	Description	Full Scale Value
		00	Output frequency	0 – Max. frequency (Hz)
		01	Output current	0 – 200%
		02	Output torque *1	0 – 200%
C028 /	[AM] /
		04	Output voltage	0 – 100%
C029	[AMI]
		05	Input electric power	0 – 200%
		06	Thermal load ratio	0 – 100%
		07	LAD frequency	0 – Max. frequency (Hz)

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	Description	Range	Default
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