Inputs And Outputs; Analog Inputs; Analog Outputs - ABB ACL30 User Manual

164 Program features

Inputs and outputs

When the drive is in external control, the following analog and digital inputs/outputs
can be used to control the drive.


Analog inputs

The drive has two programmable analogue inputs, AI1 and AI2. Both inputs can be
used either as a voltage input or current input (-11...11 V or -22...22 mA). Both inputs
can be filtered and scaled. The input type is selected with jumpers J1 and J2 on the
JCU Control Unit, respectively. The inaccuracy of the analogue inputs is 1% of the full
scale range and the resolution is 11 bits (+ sign). The hardware filter time constant is
approximately 0.25 ms.
Settings
Parameters
13 ANALOGUE INPUTS
Diagnostics
Actual signals
02.04 AI1
02.05 AI1 SCALED
02.06 AI2
02.07 AI2 SCALED


Analog outputs

The drive has two programmable analogue outputs: one current output AO1 (0...20
mA) and one voltage output AO2 (-10...10 V). Both outputs can be filtered and
scaled. The resolution of the analogue outputs is 11 bits (+ sign) and the inaccuracy is
2% of the full scale range. The analogue output signals can be proportional to, eg,
motor speed, process speed (scaled motor speed), output frequency, output current,
motor torque, and motor power. It is also possible to write a value to an analogue
output through a serial communication link (eg, a fieldbus link).
Settings
Parameters
15 ANALOGUE OUTPUTS
Diagnostics
Actual signals
02.08 AO1
02.09 AO2
Additional information
Settings for the analogue inputs.
Additional information
Analogue input AI1 value in V or mA.
Scaled value of analogue input AI1.
Analogue input AI2 value in V or mA.
Scaled value of analogue input AI2.
Additional information
Settings for the analogue outputs.
Additional information
Analogue output AO1 value in mA.
Analogue output AO2 value in V.