The PILE DRIVER board PSO000211000 is the PILE DRIVER interface used to operate the dynamic pile
formation group. In particular, the board controls a driver for brushless motors. The motor powered by the
drives positions the weaving reed at a beat-up distance varying from 0 to 22 mm.
Its operation is based on a 32-bit microprocessor interfaced with the CAN BUS system with all other units
inside or outside the electric cabinet. This microprocessor provided with 1 Mbyte of Flash memory, 1
Mbyte of static RAM memory and 128 Kbyte of EPROM memory, provides for management of a frequencydirection-
type PWM reference signal generated by an output channel of the microprocessor TPU).
The position ring is implemented by using input line drivers to read simulated encoder signals coming from
the PILE DRIVER that are in turn generated by reading the resolver keyed on the shaft of the brushless
motor. In order to synchronise the motor with the loom axis, it also reads the machine encoder.
Digital I/O signals generate the parallel interface signals needed by the PILE DRIVERS (reset, enable,
ready, zero sensor).
An RS485 serial line is provided to parameterising the PILE DRIVER.
The board also integrates the synchronism signal for the electromechanical tuck-in devices.
The software for this board, resident in the flash memory, can be updated without replacing the EPROM by
using the software update memory-card that fits in the special connector on the remote terminal. To know
the checksum for the software installed on this board it is necessary to use the special function available on
the remote terminal.
The board is provided with a switch (SW1) near the battery (BT1). This switch must be ( “ON”) for the board
to work, otherwise every time the board is switched off data would be lost. When a board is supplied
separately as a spare, this switch is OFF in order to save the battery charge: before starting to use it, the
switch should be closed (“ON”).
The board is provided with 2 fuses marked (F1), (F5).