Fuji Electric LONWORKS OPC-LNW, Instruction Manual

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(9) nv16 nviFWDcmd
This NV controls the ON/OFF of inverter's digital input terminal [FWD]. Command assignment to [FWD] is
made with function code E98. The factory default command is "Run forward."
For details about function code E98, refer to the user's manual of an inverter, "FUNCTION CODES."
- Variable type: SNVT_switch
- Data setting range: value = 0.0 to 100.0%, state = 1, 0, -1
- Default setting: value = 0.0%, state = 0
- CPs for control of the affected network bandwidth: SCPT_maxRcvTime
To assign the "Run reverse" command to terminal [FWD], it is necessary to assign a terminal
command other than "Run reverse" to terminal [REV] using function code E99.
The run command issued by this NV is independent of the one issued by nviDrvSpeedStpt, so
turning ON either one of those run commands runs the motor. To stop it, therefore, concurrently
turn OFF both of them issued by the two NVs.
To validate this NV entry on the inverter, any of the following settings is required.
UCPT_LinkFunc = 2 or 3, or inverter's function code y98 = 2 or 3
(10) nv17 to nv21 nviXcmd_1 to nviXcmd_5
These NVs control the ON/OFF of inverter's digital input terminals [X1] to [X5]. Command assignments to
[X1] to [X5] are made with function codes E01 to E05, respectively.
For details about function codes E01 to E05, refer to the user's manual of an inverter, "FUNCTION
CODES."
- Variable type: SNVT_switch
- Data setting range: value = 0.0 to 100.0%, state = 1, 0, -1
- Default settings: value = 0.0%, state = 0
- CPs for control of the affected network bandwidth: SCPT_maxRcvTime
Do not use any of nviXcmd_1 to nviXcmd_5 as a bit array (e.g., multistep speed command). This
is because, in LONWORKS communication, two or more variables are never input concurrently,
so the interface card may miss-fetch the bit array at the timing when the data gets validated on
the inverter. Accordingly, the inverter could transmit it as unexpected data. To handle them as a bit
array, use nv8 nviOpecmd, instead.
Depending on the command assignment to inverter's digital input terminals, some ON/OFF
commands via the LONWORKS network using these NVs may be ignored. On the other hand,
some commands entered from the terminal block may be unconditionally validated. For details
about these events, refer to the RS-485 Communication User's Manual (MEH448), Chapter 5,
Section 5.1.2 [3] "Operation command data."
To validate this NV entry on the inverter, any of the following settings is required
UCPT_LinkFunc = 2 or 3, or inverter's function code y98 = 2 or 3
(11) nv22 nviAlarmReset
Setting the ON value to this NV releases the inverter's trip state. If any alarm factor persists at the entry of
the ON value, the trip state cannot be released. After the entry of the ON value, the NV state automatically
reverts to OFF.
- Variable type: SNVT_switch
- Data setting range: value = 0.0 to 100.0%, state = 1, 0, -1
- Default setting: value = 0.0%, state = 0
- CPs for control of the affected network bandwidth: None