Maintenance Timer Alarm - Mitsubishi Electric FR-A820-00046 Instruction Manual

Parameters
5.7.19

Maintenance timer alarm

The maintenance timer output signal (Y95) is output when the inverter's cumulative energization
time reaches the time period set with the parameter. MT1, MT2 or MT3 is displayed on the operation
panel.
This can be used as a guideline for the maintenance time of peripheral devices.
Pr.
503
E710
504
E711
686
E712
687
E713
688
E714
689
E715
Fig. 5-79:
● The cumulative energization time of the inverter is stored in the EEPROM every hour and displayed
in Pr. 503 (Pr. 686, Pr. 688) in 100 h increments. Pr. 503 (Pr. 686, Pr. 688) is clamped at 9998 (999800 h).
● When the value in Pr. 503 (Pr. 686, Pr. 688) reaches the time (100 h increments) set in Pr. 504 (Pr. 687,
Pr. 689), Maintenance timer signal (Y95) is output, and also
(MT3) is displayed on the operation panel.
● For the terminal used for Y95 signal output, assign the function by setting "95 (positive logic)" or
"195 (negative logic)" in any of Pr. 190 to Pr. 196 (output terminal function selection).
FR-A800
Name
Maintenance timer 1
Maintenance timer 1 warning
output set time
Maintenance timer 2
Maintenance timer 2 warning
output set time
Maintenance timer 3
Maintenance timer 3 warning
output set time
First power
9998
(999800 h)
Maintenance timer 1
(Pr. 503)
Pr. 504
Y95 signal
(MT1 display)
Maintenance timer
Initial value Setting range
0 0 (1 to 9998)
0 to 9998
9999
9999
0 0 (1 to 9998)
0 to 9998
9999
9999
0 0 (1 to 9998)
0 to 9998
9999
9999
ON
Set "0" in Pr. 503
OFF ON OFF
(E) Environment setting parameters
Description
Displays the inverter's cumulative
energization time in increments of
100 h (read-only).
Writing the setting of "0" clears the
cumulative energization time while
Pr. 503 = "1 to 9998". (Writing is
disabled when Pr. 503 = "0".)
Set the time until the maintenance
timer signal (Y95) is output.
MT1 is displayed on the operation
panel.
No function
The same function as Pr. 503.
The same function as Pr. 504.
MT2 is displayed on the operation
panel.
The same function as Pr. 503.
The same function as Pr. 504.
MT3 is displayed on the operation
panel.
Time
ON
(MT1), (MT2), or
I001263E
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