Maintenance Timer Alarm - Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual

• For the terminal used for the LF signal, set "98 (positive logic) or 198" (negative logic) in any of Pr.190 to Pr.196 (Output
terminal function selection).
NOTE
• Changing the terminal assignment using Pr.190 to Pr.196 (Output terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
• For replacement of each part, contact the nearest Mitsubishi FA center.

5.7.20 Maintenance timer alarm

The Maintenance timer (Y95) signal 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. Name
503
Maintenance timer 1
E710
504 Maintenance timer 1
E711 warning output set time
686
Maintenance timer 2
E712
687 Maintenance timer 2
E713 warning output set time
688
Maintenance timer 3
E714
689 Maintenance timer 3
E715 warning output set time
First power
9998
(999800h)
Maintenance
timer1
Pr.504
(Pr. 503)
Y95 signal
MT1 display
Operation example of the maintenance timer 1 (Pr.503, Pr.504) (with both MT2 and MT3 OFF)
• 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), the
Maintenance timer (Y95) signal is output, and also "
displayed on the operation panel.
• For the terminal used for the 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).
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 ON
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 (Y95) signal is output.
MT1 is displayed on the operation panel.
Without the 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
" (MT1), " " (MT2), or "
5.7 (E) Environment setting parameters
1
2
3
4
5
6
7
8
9
10
" (MT3) is
345
5. PARAMETERS