Mitsubishi Electric 800 Series Instruction Manual page 356

Minus sign display for the monitors (Pr.290)
• A negative output can be selected for the monitor display of the terminal AM (analog voltage output), the operation panel,
and a communication option. For a list of the monitors that can output values with minus signs, refer to the monitor
description list (on page 348).
• Negative output is available for FR Configurator2 or the trace function.
Pr.290 setting
Terminal AM
0 (initial value) —
1 Enabled
2 —
3 Enabled
4 —
5 Enabled
6 —
7 Enabled
—: Disabled (unsigned numbers only)

The following communication does not support the negative output.
RS-485 communication (Mitsubishi inverter protocol, MODBUS RTU), SLMP communication, and HMS network option

Under the condition that the high-speed sampling and the negative output are selected for FR Configurator2, the display range of the output
frequency (Monitor No.1) is -300.00 Hz to 300.00 Hz. A value outside the range is clamped at -300.00 Hz or 300.00 Hz. Under the same
condition, the display range of the running speed (Monitor No.6) is -30000 r/min to 30000 r/min. A value outside the range is clamped at -30000
r/min or 30000 r/min. During the trace sampling, the same display ranges are applied. A value outside the ranges is clamped.
• Select items to be displayed with minus signs using Pr.1018 Monitor with sign selection.
Monitor item
Output frequency
Motor speed
Motor torque
Position command (lower)

Position command (upper)

Current position (lower)

Current position (upper)

Droop pulse (lower)

Droop pulse (upper)

Torque command
Torque current command
Torque monitor (power driving / regenerative driving
polarity switching)
Motor temperature
PID deviation
Cumulative pulse
Cumulative pulse overflow times
Cumulative pulse (control terminal option)
Cumulative pulse overflow times (control terminal option)
Remote output 1
Remote output 2
Remote output 3
Remote output 4
PID manipulated amount
Second PID deviation
Second PID manipulated amount
Control circuit temperature
○: Displayed with minus signs, —: Displayed without minus signs (unsigned numbers only)

Displayed without minus signs on the operation panel. Confirm the rotation direction with the [FWD] or [REV] indicator.

Signed values are displayed only on the FR-DU08 (-9999 to 9999). Unsigned values (0 to 9999) are displayed on other devices.

Full 32-bit data (-2147483648 to 2147483647) is displayed during monitoring via the communication option.

Monitor the lower and upper digits at the same timing. Otherwise, the data may not be reliable.
(M) Monitor display and monitor output signal
Connection port
Operation panel Communication option
— —
— —
Enabled —
Enabled —
— Enabled
— Enabled
Enabled Enabled
Enabled Enabled
9999
—
—
○
○

○

○

○

○

○

○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
FR Configurator2 etc.

—
—
—
—
Enabled
Enabled
Enabled
Enabled
Pr.1018 setting
0 1
○ ○
 
○ ○
 
○ ○
○ ○
 
○ ○
 
○ ○
 
○ ○
 
○ ○
 
○ ○
 
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
PARAMETERS

5
GROUP
M
355