Mitsubishi FR-A800

(M) Monitor display and monitor output signal
PARAMETERS
371
5
GROUP
M
 Differs according to capacities. (FR-A820-03160(55K) or lower, FR-A840-01800(55K) or lower /FR-A820-03800(75K) or higher, FR-A840-
02160(75K) or higher)
 When the output current is less than the specified current level (5% of the rated inverter current), the output current is monitored as 0 A.
Therefore, the monitored value of an output current and output power may be displayed as "0" when using a much smaller-capacity motor
compared to the inverter or in other instances that cause the output current to fall below the specified value.
 The setting is available only for standard models.
 The setting is available only with terminal AM (Pr.158).
Frequency monitor reference (Pr.55)
• Set the full-scale value for outputting the monitored items of output frequency, frequency setting value, and Dancer main
speed setting to the terminals FM, CA and AM.
Remote output value 1 0.1% 87 100% 
Refer to page 400 for the
analog remote output.
Remote output value 2 0.1% 88 100%
Remote output value 3 0.1% 89 100%
Remote output value 4 0.1% 90 100%
PID manipulated variable 0.1% 91
 100% 
Output with a minus sign
(terminal AM)
Second PID set point 0.1% 92 100%
Refer to page 510 for the PID
control.
Second PID measured
value
0.1% 93 100%
Second PID deviation 0.1% 94
 200% 
Second PID measured
value 2
0.1% 95 100%
Second PID manipulated
variable
0.1% 96
 100% 
Dancer main speed
setting
0.01 Hz 97 Pr.55
Refer to page 521 for the
dancer control.
Control circuit temperature 1°C 98 100°C 
Terminal FM/CA: 0 to 100°C
terminal AM: -20 to 100°C
• For the FM-type inverters, set the full-scale value of the
connected meter when the pulse speed of terminal FM is
1440 pulses/s (50k pulses/s). Set the frequency to be
indicated as the full scale value on the frequency meter (1
mA analog meter) connected between terminal FM and SD.
(For example, 60 Hz or 120 Hz.) Pulse speed is
proportional to the output frequency of the inverter.
(Maximum pulse train output is 2400 pulses/s (55k pulses/
s).)
• For the CA-type inverters, set the full-scale value of the
connected meter when output current of terminal CA is 20
mA. Set the frequency to be indicated as the full scale value
on the meter (20 mA DC ammeter connected between
terminal CA and 5; for example, 60 Hz or 120 Hz. Output
current is proportional to the frequency. (The maximum
output current is 20 mA DC.)
Types of monitor Unit
Pr.54 (FM/CA)
Pr.158 (AM)
setting
Terminal FM, CA, AM
Full-scale value
Negative
(-) output
REMARKS
1Hz 60Hz
(initial value)
Output frequency 400Hz
Setting range of Pr.55
2400
(55k)
1440
(50k)
Pulse speed (pulses/s)
Setting range of Pr.55
DC20mA
50Hz
(initial value)
120Hz
Output Current