ABB 3HAB7231-1 controller

ABB 3HAB7231-1 controller

Technical data of product parameters

The 3HAB7231-1interface (synchronous serial absolute-encoder emulation) is part of the package delivered.
Select the encoder function SSI (screen page Encoder).
In the servo amplifier, the position of the motor shaft is calculated from the cyclic-absolute signals of
the resolver or encoder. The information is used to generate a position output compatible with the
data format of normal commercial SSI absolute encoders. This synchronous-serial, cyclic-absolute
3HAB7231-1 information is output on the SubD-Connector X4.
24 bits are transmitted. The upper 12 bits are fixed at ZERO, the lower 12 bits contain the position
information.
The interface must be read in as a multi-turn encoder, but delivers valid single-turn data. The signal
sequence can be output in Gray code (standard) or in binary code (parameter SSI-CODE).
A serial signal is read out from the control, with a synchronous clock frequency of max. 1.5 MHz.
The servo amplifier can be adjusted to the clock frequency of your SSI-evaluation with the
SSI-CLOCK parameter (200 kHz or 1.5MHz and inverted).
The ground reference for the interface is AGND.
This must always be connected to the ground for the control input 3HAB7231-1 and signal description for the SSI interface
The count direction for the SSI interface is upwards when the motor shaft is rotating clockwise (looking at the shaft end).The setting of the operating, position control, and motion-block parameters, can be carried out by
using the setup software on an ordinary commercial PC.
Connect the PC interface (X8) of the servo amplifier while the supply to the equipment is switched off via a null-modem cable to a serial interface on the PC (do not use a null-modem link
cable!).
The interface has the same potential as the internal logic, and uses AGND as the ground reference.
The interface is selected and set up in the setup software.
Further notes can be found on Page 35

Product picture display

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