To Determine The Maintenance Time Of Parts; Current Average Value Monitor Signal - Mitsubishi Electric FR-F700 Manual

Pr.
338, 339, 550, 551
Operation command source and speed command
source during communication operation
Pr.338 Communication operation command source
Pr.339 Communication speed command source
Pr.550 NET mode operation command source selection
Pr.551 PU mode operation command source selection
When the RS-485 terminals or communication option is used,
the external operation command and speed command can be
made valid. Also, the control command source in the PU
operation mode can be selected.
Pr. Setting
Number Range
0
(initial Operation command source communication
338
value)
1 Operation command source external
0
(initial Speed command source communication
value)
Speed command source external (Frequency
339 1 setting from communication is invalid, terminal 2
and 1 setting from external is valid)
Speed command source external (Frequency
2 setting from communication is valid, terminal 2 and
1 setting from external is invalid)
0 Communication option valid
1 Inverter RS-485 terminal valid
Automatic communication option recognition
550
*
9999
Normally, the RS-485 terminals are valid. When
(initial
the communication option is fitted, the
value)
communication option is valid.
Select the RS-485 terminals as the PU operation
1
mode control source.
551
* 2
Select the PU connector as the PU operation
(initial
mode control source.
value)
* Pr. 550 and Pr. 551 are always write-enabled.
Refer to the section about Pr. 79.
Pr.
340
Refer to the section about Pr. 117 and
Pr.
341 to 343
other relevant parameters.
Remote output function
Pr.
495 to 497
(REM signal)
Pr.495 Remote output selection
Pr.497 Remote output data 2
You can utilize the on/off of the inverter's output signals instead
of the remote output terminal of the programmable logic
controller.
indicates simple mode parameters and
Pr.
Description
Pr.496 Remote output data 1
indicates extended parameters. When setting parameters, refer to the instruction manual (applied) and understand instructions.
Pr.
To determine the
Pr.
503 to 504
maintenance time of parts.
Pr.503 Maintenance timer
When the cumulative energization time of the inverter reaches
the parameter set time, the maintenance timer output signal
(Y95) is output. (MT) is displayed on the operation panel
(FR-DU07)
This can be used as a guideline for the maintenance time of
peripheral devices.
First power ON
9998
(999800h)
Set "0" in Pr.503
Maintenance
timer
Pr.504
(Pr. 503)
OFF
Y95 signal
MT display
The cumulative energization time of the inverter is stored into the
EEPROM every hour and indicated in Pr. 503 Maintenance timer in
100h increments. Pr. 503 is clamped at 9998 (999800h).
Pr. Refer to the section about Pr.117 to Pr. 124.
549
Pr. Refer to the section about Pr. 338, Pr.339.
550 to 551
Current average value
Pr.
555 to 557
monitor signal
Pr.555 Current average time
Pr.557 Current average value monitor signal output reference current
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 output during constant
speed operation.
From acceleration to constant speed operation
Y93 signal
1) Data output mask time
When the speed has changed to constant
from acceleration/deceleration, Y93 signal is
not output for Pr.556 time.
2) Start pulse
Output as Hi pulse shape for 1s (fixed)
Time and output current set in Pr.555 are averaged
3) Output current average value pulse
The averaged current value is output as low pulse shape for
0.5 to 9s (10 to 180%) during start bit output.
output current average value (A)
Signal output time=
Pr.557 (A)
Refer to the section about Pr. 13 and other
Pr.
571
relevant parameters.
Refer to the section about Pr. 127 and
Pr.
575 to 577
other relevant parameters.
Refer to the section about Pr. 57 and other
Pr.
611
relevant parameters.
Refer to the section about Pr. 251 and other
Pr.
872
relevant parameters.
Pr.504 Maintenance timer alarm output set time
Time
ON ON
Pr.556 Data output mask time
Output
frequency
Time
1 cycle (20s) Next cycle
5) End pulse
output as low pulse
shape for 1 to 16.5s
4) Maintenance timer pulse
The maintenance timer value (Pr.503) is output
as Hi output pulse shape for 2 to 9s (16000h to
72000h).
Pr.503 1000h
5s
Signal output time=
40000h
5s
44