Mitsubishi Electric FR-A700 Technical Manual page 324

(1) Analog output signal setting [Pr. 309]
Use [Pr. 309 Analog output signal voltage/current
switchover] to select whether to output the same
signal or different signals from terminal AM0 (analog
voltage output) and terminal AM1(analog current
output).
When [Pr. 309 = 0, 10] , same signal is output from
terminal AM0 and AM1, and set the output signal
using [Pr. 306]. (Refer to page 346 for output signal
description.)
When [Pr. 309 = 1, 11], a different signal is output
from each terminal, and set output signal from AM0
using [Pr. 310] and from AM1 using [Pr. 306]. (Refer to
page 346 for output signal description.)
(2) Adjusting the meter needle to stop at 0 [Pr.
323, 324]
If the meter needle does not point to 0 when voltage
or current output is 0, use [Pr. 323 AM0 0V adjustment]
or [Pr. 324 AM1 0mA adjustment] to calibrate the meter.
Setting a smaller value decreases the analog output
and a larger value increases the analog output.
(3) Calibration of analog signal [C0 (Pr. 900), C1
(Pr. 901)]
When outputting the same signal from terminal AM0
and AM1 ([Pr. 309 = 0, 10]), set [Pr. 306 = 21]
(reference voltage output) and adjust the output at
full-scale using [C1 (Pr. 901)].
When outputting the same signal from terminal AM0
and AM1 ([Pr. 309 = 1, 11]) , set [Pr. 310 = 21]
(reference voltage output) for terminal AM0 and [Pr.
306 = 21] (reference voltage output) for AM1 to adjust
the output from these terminals at full-scale using [C0
(Pr. 900)] and [C1 (Pr. 901)] respectively. Refer to
page 356 for details.
Calibrating AM 0 and AM1 without setting 21 in [Pr.
306] or [Pr. 310] calibrates terminal FM and AM of the
inverter. To prevent this, always set 21 before
calibrating terminal AM0 and AM1.
(4) Analog signal adjustment [Pr. 307, 308,
311, 312]
Use [Pr. 307] or [Pr. 311] to set for zero analog output
(meter points 0).
In addition, use [Pr. 308] or [Pr. 312] to set for
maximum analog output (full-scale).
Output signal value can be calibrated when [Pr. 309 =
0, 1] and analog input value can be adjusted when
[Pr. 309 = 10, 11].
When [Pr. 309 = 0, 1]
Analog output
Current Voltage
(AM1) (AM0)
20mA 10V
0
* When [Pr. 307] [Pr. 308] and [Pr. 311]
the output value at terminal AM0 and AM1 are always zero.
When [Pr. 309 = 10, 11]
Analog output
Current Voltage
(AM1) (AM0)
20mA 10V
0
* When [Pr. 307] [Pr. 308] and [Pr. 311]
the output value at terminal AM0 and AM1 are always the
parameter setting value.
358
PARAMETER
Output signal value
([Pr. 308] or [Pr. 312]) for maximum
analog output
Output signal
value
Output signal value ([Pr. 307] or
[Pr. 311]) for zero analog output
[Pr. 312] are set,
Analog output value
([Pr. 308] or [Pr. 312]) for
maximum output signal
Output signal
value
Output signal value ([Pr. 307] or
[Pr. 311]) for zero output signal
[Pr. 312] are set,