Meter Setting And Adjustment - Toshiba Tosvert VF-AS1 Instruction Manual

5.16

Meter setting and adjustment

  : FM terminal meter selection
  : FM terminal meter adjustment
  : Constant at the time of filtering
  : FM voltage/current output
switching
  : Inclination characteristic of FM
output
  : FM bias adjustment
• Function
Inverter's operation data is sent to the FM terminal (AM terminal) as analog voltage signals or analog current
signals. To display inverter's operation data, connect a meter to this terminal. The "FM terminal-connected meter
adjustment  " (AM terminal-connected meter adjustment  ) parameter is used to calibrate the
Note 1: The signal output from the FM and AM terminal is an analog voltage signal or an analog current signal.
(positive (+) side output. In the case of output the signed data, the signal is added offset. Offset level is able
to adjust by  and . If monitoring the output data with positive and negative voltage, you need
to use "expansion I/O card2 option".)
Note 2: To the FM terminal, connect either a full-scale 0~1mAdc ammeter or a full-scale 0~7.5Vdc (or 10Vdc)
voltmeter, if necessary. The FM terminal can also be used as a 0(4)~20mAdc output terminal.
To the AM terminal, connect either a full-scale 0~1mAdc ammeter or a full-scale 0~7.5Vdc (or 10Vdc)
voltmeter, if necessary.
Connect meters as shown below.
<Connection to terminal FM>
FM
VF-AS1
CCA
A frequency meter QS60T is optionally available.
 Output modes of the FM terminal
When used with a 0~1mAdc ammeter
(Default setting)
0-10V
0-20mA
When the optional frequency meter QS60T is
connected, this mode is selected.
<Connection to terminal AM >
AM
VF-AS1
CCA
It is recommendable to use an ammeter with a current rating 1.5 or more times as high as the output current
rating of the inverter.

+
-
The reading of the frequency meter fluctuates during calibration.
When used with a DC0~10V voltmeter
FM
0-1mA
SW2
+
-
The reading of the ammeter fluctuates during calibration.
E-27
  : FM output filter
  : AM terminal meter
selection
  : AM terminal meter
adjustment
  : Inclination characteristic
of AM output
  : AM bias adjustment
Meter: Frequency meter
(default setting)
FM
0-10V
0-1mA
0-20mA
SW2
=
Meter: Ammeter
(default setting)
E6581442
meter.
When used with a 0(4)~20mAdc
FM
0-10V
0-1mA
0-20mA
SW2
=
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