Sices HS 315, Техническое руководство

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60 Technical Handbook
Connect the shielding mesh of the shielded cable to the protective earth or to signal on both
sides make sure that interior, panel and the engine frame are kept at the same potential).
The CAN-BUS connection needs a 120-ohm termination resistor on both ends of the cable.
Normally, the control unit of the engine has the termination resistor built-in (if not, connect the
resistor directly on the CAN_H and CAN_L terminals of the control unit).
The termination resistor in the case of the HS315 is built-in; to enable it, all you need to do is
jumper connect JO-4 and JO-5 to each other.
NOTE: the termination must be always enabled, unless the connection proceeds to
other devices and the HS315 is not one of the two ends.
Use the parameters from menu 7 (parameters P.0700 and P.0703) to indicate to the controller
board the type of engine with which it must interact and the functions that must be managed.
For configuring the additional expansion modules, see par. 5.8.
The USB protocol specifications do not allow it to be used permanently in the industrial sector
due to limited length of the cable and to the relatively elevated sensitivity to electrical
disturbances including on the PC side.
For this reason, the USB connection cable must
only be inserted when it is necessary to operate on the device and it must be removed
from the JB connector when the operation is finished.
The USB connection to a PC is used for two purposes:
•
Enabling the device firmware
•
Parameters programming
Loading/replacing the firmware of the device is a specific operation of SICES s.r.l.; in addition
to the operating FW to be loaded, it requires a procedure and specific programs and normally
this procedure must not be carried out by the person who performs the installation, except in
specific situations previously agreed on with SICES.
The USB port can be used for programming the parameters with the BoardPrg3 program, as
an alternative to the serial connection RS232/RS485 or to Ethernet.
The PC to be connected must have the CDC_Sices_Win.inf driver installed, which is supplied
by SICES; for driver installation refer to document [5].
After installing the driver, the PC will acknowledge the HS315 as a new serial port, to be used
just as if it were an RS232 serial.