Справочник Пользователя для Mitsubishi Electronics FR-V540-1.5K to 55K

187

• The maintenance output timer count displayed on the FR-DU04

-1

 is clamped at 9998 (99980h).

• Writing 0 to Pr. 892 enables the maintenance (MT) output/display to be turned off.

 

(This is designed to turn it off only when the user intends to turn it off.)

• When the Pr. 891 setting is less than the Pr. 890 value, the maintenance output turns off.

1)Pr. 891 "Maintenance output timer"

The cumulative energization time of the inverter is counted every 1hr and the stored time in E

2

PROM is output in 

10hrs increment.

2)Setting the MT signal

Set "37" (maintenance output signal) in Pr. 190 to Pr. 192 or Pr. 195 (output terminal function selection) to set the 
MT signal. (Refer to page 152)

When the cumulative energization time (Pr. 891 "maintenance output timer") of the inverter has elapsed the 
time set in Pr. 890 "maintenance output setting time", the maintenance output (MT) signal is output and an 
alarm is displayed on the PU (FR-DU04

-1

/FR-PU04V). A repetition signal output and alarm display at 

specified intervals can be set using Pr. 890 "maintenance output setting time". (usable for a capacitor life 
alarm, etc.)

890

Maintenance output setting time

9999

0 to 9998

, 

9999

9999: Function invalid

Extended 
mode

891

Maintenance output timer

0

0 to 9998

892

Maintenance output signal clear

0

0

• The time is counted regardless of the Pr. 890 "maintenance output setting time" value.
• The timer can be cleared by setting "0" in Pr. 891 when Pr. 77 = "801". Make sure that the Pr. 77 value is reset to the original 

value.

speed

torque

position

Initial power on

Maintenance
output timer
 (Pr. 891) 

MT output/display

OFF

ON

ON

Pr. 890

Pr. 890

Pr. 890

99980h

0 written to Pr. 892