
6.3 Positioning Control
KV-300
KV-10/80
3-298
6
Chapter 6 Interrupts, High-speed Counters, Positioning Control
■ Set value error code
Automatically writes an error code (11 to 17) into DM9407 when a parameter setting
error is found at startup.
■ Corrective action for error code 16
Error code 16 is issued when the output pulse count during acceleration/decelera-
tion time exceeds other values calculated from the preset parameters.
To recover from the error, the following corrective actions are available.
• Change the run frequency and/ or the acceleration/ deceleration time according
to the following expression.
Corrective action for error code FFFF (-1)
• Reduce run frequency and start frequency.
• Reduce accelleration/ deccelleration time.
■ Start frequency (Hz)
Sets a start frequency (speed) to start the motor rotation smoothly during positioning
control.
The KV-300 CPU outputs clock pulses at the specified frequency.
■ Run frequency (Hz)
Sets the motor frequency (speed) during positioning control. The KV-300 CPU
outputs clock pulses at the specified frequency.
Note: When the start frequency equals the run frequency, the system operates as
shown in the following chart.
Here, the acceleration/deceleration time is ignored. The output count should be less
than 65535.
0
Preset frequency
Code Error description Corrective action
11 Start frequency is below allowable Adjust start frequency to within allow-
range. able range (153 to 50000).
12 Run frequency is below allowable Adjust run frequency to within allow-
range. able range (153 to 50000).
13 Run/start frequency exceeds allow- Adjust run/start frequency to within
able range. allowable range (153 to 50000).
14 Start frequency is greater than run Reduce start frequency to less than
frequency. run frequency.
15 Acceleration/deceleration time Adjust acceleration/deceleration time
exceeds allowable range. to within allowable range (0 to 4096).
16 Too many pulses are output during Change the parameters.
acceleration/deceleration time.
17 Too few pulses are output during Set 2 or more as value for output
acceleration/deceleration time. pulse count.
FFFF Other calculation error Change the parameters.
65535
Run frequency
x Pulse change cycle x 65535
1000
KVNKA Chap 06.p65 08.3.11, 0:10 PM298
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