Mitsubishi Electric FR-F800 Series Instruction Manual page 314

 Enabling display of negative numbers during monitoring (Pr.290)
• Negative signal outputs can be selected for the items monitored via terminal AM (analog voltage output), via a
communication option, and on the operation panel. To check which items can be monitored with indication of negative
numbers, refer to the monitor items list (on
Pr.290 setting
0 (initial value)
1
2
3
4
5
6
7
—: Negative numbers indication disabled (positive only)
*1 The following communication does not support negative output.
RS-485 communication (Mitsubishi inverter protocol, MODBUS RTU, BACnet), LONWORKS communication (FR-A8NL), and SLMP
communication
*2 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 the item group to enable the indication of negative signed numbers by setting Pr.1018 Monitor with sign selection.
Output frequency
Motor speed
Motor torque
PID deviation
BACnet terminal AM output level
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
○: Negative numbers displayed with minus sign, —: Negative numbers not displayed (positive only)
*1 The same operation is performed for the both settings.
*2 Negative numbers are not displayed on the operation panel. Confirm the rotation direction with the [FWD] or [REV] indicator.
NOTE
• When the output via terminal AM (analog voltage output) is set to "Negative numbers indication enabled", the output is within
the range of -10 to +10 VDC. Connect the meter with which output level is matched.
• Parameter unit (FR-PU07) displays only positive values.
 Monitor filter (Pr.1106 to Pr.1108)
• The response level (filter time constant) of the following monitor indicators can be adjusted. Increase the setting when a
monitor indicator is unstable, for example.
Pr.
1106
1107
1108
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Terminal AM
—
Enabled
—
Enabled
—
Enabled
—
Enabled
Monitor item
Monitor number Monitor indicator name
7 Motor torque
17 Load meter
6 Motor speed
18 Motor excitation current
search engine
page 306).
Negative indication (-)
Operation panel Communication option
— —
— —
Enabled —
Enabled —
— Enabled
— Enabled
Enabled Enabled
Enabled Enabled
Pr.1018 setting
*1
9999 0 (1)
— *2
○
—
*2
○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
*1
FR Configurator2 etc.
—
—
—
—
Enabled
Enabled
Enabled
Enabled
5. PARAMETERS
5.8 (M) Item and output signal for monitoring
1
2
*2
3
4
5
6
7
8
9
10
313