Current Average Value Monitor Signal (Pr. 555 To Pr. 557) - Mitsubishi Electric FR-E700 Series Instruction Manual

Useful functions
6.21.4

Current average value monitor signal (Pr. 555 to Pr. 557)

The average value of the output current during constant speed operation and the maintenance timer
value are output as a pulse to the current average value monitor signal (Y93). The pulse width output
to the I/O module of the PLC or the like can be used as a guideline due to abrasion of machines and
elongation of belt and for aged deterioration of devices to know the maintenance time.
The current average value monitor signal (Y93) is output as pulse for 20s as 1 cycle and repeatedly out-
put during constant speed operation.
Fig. 6-155: Monitoring the maintenance timer and current average value
Pr. No. Name
555
Current average time
556
Data output mask time
Current average value moni-
557
tor signal output reference
current
The above parameters can be set when Pr. 160 "User group read selection" = 0.
The above parameters allow its setting to be changed during operation in any operation mode even
if "0" (initial value) is set in Pr. 77 "Parameter write selection".
6 - 308
PLC
Maintenance
time
Parts have
reached their life!
Setting
Initial Value Description
Range
Set the time taken to average the current dur-
1s 0.1–1.0s
ing start bit output (1s).
Set the time for not obtaining (mask) transient
0s 0.0–20.0s
state data.
Rated inverter Set the reference (100%) for outputting the sig-
0–500A
current nal of the current average value.
Output unit Input unit
Parameters referred to
57
190–192
503
Parameter
Inverter
I001940E
Refer to
Section
Restart coasting time 6.12.1
Output terminal 6.10.5
function selection
Maintenance timer 6.21.3