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E6581090
F-28
6
6.15.3 Changing the standard monitoring item
H
: Selection of monitor display selection
• Function
This parameter is used to change the item displayed when the power is turned on.
☆When the power is turned on, the operation frequency is displayed by default like this:
“” or “QHH”. You can change this default monitoring item, using H. In that
case, however, no prefixes (such as V and E) will be displayed.
■Parameter settings
Title Function Adjustment range Default setting
H
Selection of
monitor display
selection
0: Operation frequency (Hz/free unit)
1: Frequency command (Hz/free unit)
2: Output current (%/A)
0
6.16 Communication function (common serial)
H
: Communication baud rate
H
: Parity
H
: Inverter number
H
: Communication error trip time
For details, refer to the Communications Equipment User’s Manual.
• Function
The VF-nC1 series of inverters can be connected to a host computer, controller, and so on
(referred to as the computer) via RS232C or RS485 conversion units, so that they can be
operated on a network.
<Computer linking function>
Data is exchanged between an inverter and a computer.
①Monitoring the inverter’s operation status (such as output frequency, current and voltage)
②Commands to the inverter (such as RUN and STOP commands)
③Reading, changing and writing inverter parameter settings
<RS232C communications>
Data is exchanged between one inverter and one computer.
<RS485C communications>
Data is exchanged between one computer and multiple inverters (a maximum of 64, or 63 for
binary codes)
☆The following unit and cables are optionally available for common serial communications.
• RS232C conversion unit (Model: RS2001Z)
Communications cable (Model: CAB0011 (1m), CAB0013 (3m), CAB0015 (5m))
• Cable with a built-in RS232C conversion unit (Model: 20035)
• RS485C conversion unit with a terminal board (Model: RS4001Z, RS4002Z)
• Communications cable (Model: CAB0011 (1m), CAB0013 (3m), CAB0015 (5m))
Note: Use a cable 5 m or less in length to connect an inverter and an optional common serial unit.