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Useful functions
2)Setting of Pr.555 Current average time
The average output current is calculated during Hi output of start pulse (1s). Set the time taken to average the current
during start pulse output in Pr.555.
3)Setting of Pr.557 Current average value monitor signal output reference current
Set the reference (100%) for outputting the signal of the current average value. Obtain the time to output the signal from the
following calculation.
4)Setting of Pr.503 Maintenance timer
Note that the output time range is 0.5 to 9s and the output time is either of the following
values when the output current average value is the corresponding percentage of the
Pr.557 setting.
Less than 10% ... 0.5s, more than 180% ... 9s
Example)when Pr.557 = 10A and the average value of output current is 15A
As 15A/10A 5s=7.5, the current average value monitor signal is output as
low pulse shape for 7.5s.
After the output current average value is output as low pulse shape, the maintenance
timer value is output as high pulse shape. The output time of the maintenance timer
value is obtained from the following calculation.
Note that the output time range is 2 to 9s, and it is 2s when the Pr.503 setting is less
than 16000h and 9s when exceeds 72000h.
REMARKS
Mask of data output and sampling of output current are not performed during acceleration/deceleration.
When the speed is changed to acceleration/deceleration from constant speed during start pulse output, the data is judged as
invalid, the start pulse is output as high pulse shape for 3.5s, and the end signal is output as low pulse shape for 16.5s.
The signal is output for at least 1 cycle even when acceleration/deceleration state continues after the start pulse output is
completed.
When the output current value (drive unit output current monitor) is 0A on completion of the 1 cycle signal output, the signal is
not output until the speed becomes constant next time
After completing one cycle of signal outputs in acceleration/deceleration, the current average value monitor signal (Y93) is
output as Low output (no data output) for 20s.
NOTE
Under position control, current average monitor is not available.
Changing the terminal assignment using Pr.190 to Pr.192 (output terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
Parameters referred to
Pr.190 to Pr.192 (output terminal function selection) Refer to page 144
Pr.503 Maintenance timer Refer to page 248
Output current average value
5s (Output current average value 100%/5s)
Pr.557 setting
9
0.5
10 (%)
(s)
Output current average value
180
Signal output time
Pr.503 100
5s (Maintenance timer value 100%/5s)
40000h
9
2
16000
(h)
(s)
Maintenance timer value
72000
Signal output time
5) End pulse
Output as low pulse shape for 16.5s
Y93 signal
2) Start pulse
Output as high pulse shape for 3.5s
Invalid cycle (20s)
Next cycle
Time
Rotation speed
The speed is changed to deceleration
from the constant speed during start pulse output
Previous cycle