Mitsubishi Electric FR-A700 Technical Manual page 85

2)
E700
[Pr.496]
b11
[Pr.497]
b11
*1 As desired
*2 Terminal Y0 to Y6 are available only when the extension
output option (FR-A7AY E kit) is fitted
*3 Terminal RA1 to RA3 are available only when the relay
output option (FR-A7AR E kit) is fitted
1.4.25 Indicator connection and adjustment (FM)
Pulse train of 8VDC maximum, 2400pulse/s is output.
(When [Pr. 291 Pulse train I/O selection = 0, 1] in
output is selected.) The pulse width can be adjusted by
calibration parameter [Calibration parameter C0 (Pr. 900) FM
terminal calibration] using the operation panel and
parameter unit.
The output frequency, etc. of the inverter can be indicated
by a DC ammeter of 1mA full-scale deflection and
maximum 300Ω internal resistance or a commercially
available digital indicator which is connected across
terminals FM-SD.
The indicator can be calibrated from the operation panel or
parameter unit. Note that the reading varies according to
the wiring distance if the indicator is placed away from the
inverter. In this case, connect a calibration resistor in
series with the indicator as shown below and adjust until
the reading matches the operation panel or parameter unit
indication (indicator monitoring mode).
The wiring length of the terminal FM should be 200m
maximum and use the twisted cable or shielded cable.
1mA
FM
Calibration
resistor
*1
SD
Pulse width T1: Adjust using calibration parameter C0
Pulse cycle T2: Set with [Pr. 55] (frequency monitor)
1440 pulses/s(+)
FM
SD
A700
Indicator
1mA full-scale
analog meter
(+) (-) T1
8VDC
T2
Set with [Pr.56] (current monitor)
(Digital indicator)
(-)
3)
D700
[Pr.496]
b11
b0
* As desired
b0
common
(common)
*1 It is not necessary when the operation panel (FR-
DU07) or parameter unit (FR-PU04/FR-PU07) is used
, FM
for calibration.
Used when calibration must be made near the
frequency meter for such a reason as a remote
frequency meter.
However, the frequency meter needle may not deflect
to full-scale if the calibration resistor is connected. In
this case, use this resistor and operation panel or
parameter unit together.
*2 The default settings are 1mA full-scale and 1440
pulse/s terminal FM frequency at 60Hz.
Up to two 1mA analog indicators can be used in parallel for
A700 F700
used for
E700
parallel, select such as 0.5mA fullscale indicators so that
these will not exceed the maximum current of the inverter.
A digital indicator and analog indicator can not be used
together.
The type and number of digital indicators are limited
according to the input impedance and input voltage
specifications.
78
SPECIFICATIONS
, but only one 1mA analog indicator can be
. To use analog indicators in
D700
b0