Meter Setting And Adjustment; Monitoring The - Toshiba TOSVERT VF-PS1 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
  : Inclination characteristic of FM
  : 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).
Please use 0-10V/0-20mA output of terminal FM when you monitor the signed data by only positive (+) side
output. In the case of output the signed data, the signal is added offset of 50% automatically. Offset level is
able to adjust by 
If monitoring the output data with positive and negative voltage, you need to use "expansion I/O card2
5
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>
VF-PS1
A frequency meter QS60T is optionally available.
 Output modes of the FM terminal
When used with a 0~1mAdc ammeter
(Default setting)
When the optional frequency meter QS60T is
connected, this mode is selected.
<Connection to terminal AM >
VF-PS1
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.
switching
output
+
FM
-
CCA
The reading of the frequency meter fluctuates during calibration.
When used with a DC0~10V voltmeter
FM
0-10V
0-1mA
0-20mA
SW2
+
AM
-
CCA
The reading of the ammeter fluctuates during calibration.

  : 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)
E-26
E6581386
meter.
When used with a 0(4)~20mAdc
FM
0-10V
0-1mA
0-20mA
SW2
=