Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации

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Useful functions Parameter
6 - 276
6.20.3 Maintenance timer alarm (Pr. 503, Pr. 504)
When the cumulative energizing time of the inverter reaches the parameter set time, the main-
tenance timer output signal (Y95) is output. "MT" is displayed on the operation panel. This can
be used as a guideline for the maintenance time of peripheral devices.
The above parameters can be set when Pr. 160 = 0.
The cumulative energizing time of the inverter is stored into the E²PROM every hour and indi-
cated in Pr. 503 "Maintenance timer" in 100h increments. Pr. 503 is clamped at 9998 (999800h).
When the Pr. 503 value reaches the time set to Pr. 504 "Maintenance timer alarm output set
time" (100h increments), the maintenance timer alarm output signal (Y95) is output.
For the terminal used for the Y95 signal output, assign the function by setting "95" (source logic)
or "195" (sink logic) to any of Pr. 190, Pr. 192 or Pr. 197.
Pr. No. Name
Initial
Value
Setting
Range
Description Parameters referred to
Refer to
Section
503
Maintenance timer 0 0 (1–9998)
Display the cumulative energizing time
of the inverter in 100h increments.
Reading only
Writing the setting of "0" clears the
cumulative energizing tim, while Pr.
503 = "1 to 9998".
190/192/
197
Output terminal
function selection 6.9.5
504
Maintenance timer
alarm output set time
9999
0–9998
Set the time taken until when the
maintenance timer alarm output signal
(Y95) is output.
9999 No function
I001263E
Fig. 6-141: Maintenance timer
NOTES
The cumulative energizing time is counted every hour. The energizing time of less than 1h is
not counted.
When terminal assignment is changed using Pr. 190, Pr. 192 or Pr. 197, the other functions
may be affected. Please make setting after confirming the function of each terminal.
First power
9998
(999800h)
Maintenance timer
(Pr. 503)
Pr. 504
Y95 signal
("MT" display)
Set "0" in Pr. 503
OFF ON ON
ON
Time
OFF