11.4 Option
11-95
Chapter 11 SELECTING PERIPHERAL EQUIPMENT
[13] SX-bus communications card (OPC-G1-SX)
The SX-bus communications card is used to connect the FRENIC-MEGA series to a Fuji MICREX-SX
series of programmable logic controllers via an SX bus. Mounting the communications card on the
FRENIC-MEGA enables programmed automatic running and monitoring of the inverter and configuring
and checking of function codes required for inverter running, from the MICREX-SX.
Applicable ports
This communications card can be connected to the A-port only, out of three option connection ports (A-, B-,
and C-ports) provided on the FRENIC-MEGA.
Note: The SX-bus communications card uses also a part of the B-port function so that the B-port cannot
accept any other card except the relay output card.
Note: Once the inverter is equipped with the SX-bus communications card, no more communications card
(e.g., DeviceNet and PROFIBUS DP cards) is allowed on the inverter. Mounting such cards on the inverter
at the same time causes the communication error alarm
er4
.
Applicable ROM version
This communications card is applicable to inverters with a ROM version G1S11000 or later.
Hardware specifications
Table 11.4-67
Item Specifications
Name SX-bus communications card
Transmission requirements SX bus slave, I/O transmission
Transmission speed 25 Mbps
Number of words occupied in
transmission
Standard format (16 words, 8W + 8W)
Terminals, Bus cable IN,OUT/SX bus dedicated cable
* NP1C-P3(0.3 m) to NP1C-25(25 m)
Station address switches RSW1
and RSW2
(Rotary switches)
Station address setting switches for assigning an arbitrary station
address, from 1 to 238.
Status indicator LEDs (RUN and
ERR)
LEDs for indicating the current status (running or error) of the
inverter on which the communications card is mounted.
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