Fuji Electric OPC-G1-SX., Instruction Manual

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10.2 SX-bus Specifications
Table 10.2 lists the SX-bus specifications for this communications card. For the items not covered in this section,
the specifications of the SX bus apply.
Table 10.2 SX-bus Specifications
Item Specifications
Name SX-bus communications card
Model name OPC-G1-SX
Applicable inverters FRENIC-MEGA series of inverters, ROM Ver. 1000 or later
Applicable controller MICREX-SX series
Transmission specifications SX-bus slave I/O transmission
Number of words occupied in
transmission Total of 16 words
(MICREX-SX
Inverter: 8W, Inverter MICREX-SX: 8W)
SX-bus cable NP1C-P3 (0.3 m) to NP1C-25 (25 m)
Total cabling length
25 m
(If the total cabling length exceeds 25 m, use an SX-bus electric repeater unit
(NP2L-RP1).
Number of units connectable Max. 10 units
Transmission speed 25 Mbps
Operat
io
n
Data updating interval Min. 1.5 ms
Run command
Run forward and reverse commands, Alarm reset command,
X1 to X9, XF, and XR commands
Reference frequency,
Output frequency monitor Reference frequency 20000 Maximum frequency (F03) 16-bit data
Running status monitor The following signals can be monitored:
Running forward, Running reverse, During DC braking, Inverter shutdown,
Braking, DC link bus voltage established, Torque limiting, Output voltage limiting,
Output current limiting, During acceleration, During deceleration, Alarm relay
output, Link enabled/disabled, and Data writing in progress
Function codes Able to read and write data from/to major function codes.
Recovery from SX-bus
network breaks o27 defines error processing that the inverter should perform when it detects an
SX-bus network break.
If the inverter causes an alarm due to the error processing selected, removing
the alarm factor and issuing a Reset command resumes the inverter operation.
Checking alarms Able to check the alarm contents using M, X, and Z function codes.
Protective functions
: Option communications error (Communications card hardware error)
: Option error (SX-bus communications error)