Frequency Setting Potentiometer; Frequency Meter And Calibration Resistor - Mitsubishi Electric FR-A700 Technical Manual

3.6.8

Frequency setting potentiometer

Type: WA2W 1kΩ
Wire-wound variable resistor 2W1kΩ B characteristics
20
M9 0.75 screw
12
25
Panel drilling diagram
3.6.9

Frequency meter and calibration resistor

A manual controller with frequency meter (such as the FR-
AX) is available. When only a frequency meter is installed
separately, use an
specifications:
Moving-coil type DC ammeter
Full scale 1mA (internal resistance 300Ωmax.)
Graduations: 60, 120, 240Hz in full scale.
Alternatively, graduate in rpm
according to the number of poles
of the motor used.
Since the frequency meter terminal FM on the inverter
develops about 5VDC at the maximum frequency, calibrate
the frequency meter using the variable resistor having the
following specifications. It is not necessary when
calibrating the meter from the operation panel (parameter
unit).
Calibration resistor 1/3W or more 10kΩ
The following frequency meter and calibration resistor are
available for use.
Analog frequency meter(64mm
Type YM206NRI 1mA
Graduations : 0 to 65, 130Hz double graduations
64
10.5
Panel drilling diagram
55mm dia. hole
24 24
2- 4mm dia. hole
2.8 (locking)
1
3
2
3.6 hole
10 hole
(Unit: mm)
instrument of the following
×
60mm)
M4 0.7 screw
(for terminal)
2-M3 0.5
(for installation)
10
25
43
(Unit: mm)
When frequency setting is not changed frequently, a
variable resistor of 1/2W1kΩ may be used.
Calibration resistor
Type: RV24YN 10kΩ
Deposited carbon variable resistor 1/3W, 10kΩB
characteristic
2.5
M9 0.75 screw
10
13 20
* Not needed when the operation panel (FR-DU07) or
parameter unit (FR-PU07) is used for calibration. This
resistor is used when calibration must be made near the
frequency meter for such a reason as a remote
frequency meter. Note that the needle of the frequency
meter may not deflect to full-scale when the calibration
resistor is connected. In this case, use this resistor and
operation panel or parameter unit together.
534
SELECTION
2.8
10
MAX
1 3
R22
2
Panel drilling diagram
10
3.6mm
10mm
dia. hole
dia. hole
(Unit: mm)