Mitsubishi Electric FR-A800 Series Instruction Manual page 365

The pulse is repeatedly output during constant-speed operation in cycles of 20 seconds to the Current average monitor (Y93)
signal.
maintenance
time
parts have
reached their life
Pr.
555
Current average time
E720
556
Data output mask time
E721
Current average value
557
monitor signal output
E722
reference current
*1 For the FR-A820-03160(55K) or lower, and FR-A840-01800(55K) or lower.
*2 For the FR-A820-03800(75K) or higher, and FR-A840-02160(75K) or higher.
 Operation example
• The pulse output of the Current average monitor (Y93) signal is indicated below.
• For the terminal used for the Y93 signal output, assign the function by setting "93 (positive logic)" or "193 (negative logic)"
in any of Pr.190 to Pr.194 (Output terminal function selection). (This cannot be assigned by setting in Pr.195 ABC1
terminal function selection or Pr.196 ABC2 terminal function selection.)
Y93 signal
Data output mask time
When the speed has changed to constant
from acceleration/deceleration, Y93 signal is
not output for Pr. 556 time.
Start pulse
Output as Hi pulse shape for 1 s (fixed)
The output currents are averaged during the time
period set in Pr.555.
Output current average value pulse
The averaged current value is output as low pulse shape for
0.5 to 9 s (10 to 180%) during start pulse output.
output current average value (A)
Signal output time=
 Pr.556 Data output mask time setting
• Immediately after acceleration/deceleration is shifted to constant-speed operation, the output current is unstable
(transitional state). Set the time for not obtaining (masking) transitional state data in Pr.556.
 Pr.555 Current average time setting
• The output current average is calculated during start pulse (1 second) HIGH output. Set the time for calculating the average
current during start pulse output in Pr.555.
364
5. PARAMETERS
5.7 (E) Environment setting parameters
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Programmable controller
Output Input
unit unit
Name Initial value
1 s
0 s
Inverter rated
current
From acceleration to constant speed operation
Output
frequency
5 s
Pr. 557 (A)
search engine
Inverter
Setting range
Set the time for calculating the average current during start
0.1 to 1 s
pulse output (1 second).
Set the time for not obtaining (masking) transitional state
0 to 20 s
data.
*1
0 to 500 A
Set the reference (100%) for outputting the output current
average value signal.
*2
0 to 3600 A
1 cycle (20 s) Next cycle
End pulse
output as low pulse
shape for 1 to 16.5 s
Maintenance timer pulse
The maintenance timer value (Pr. 503) is output
as Hi output pulse shape for 2 to 9 s (16000h to
72000h).
Pr. 503 100h
Signal output time=
40000h
Description
Time
5 s