This function shows any error status in the output frequency and the initial output frequency during the pulse output. If the system variable (#L_IOStatus[1]) shows error code 101, you can acknowledge the error status from the system variable (#L_ExIOSpParmErr) value. The watch bit will differ, depending on the CH to which you allocate the pulse output.
When changing Special I/O parameters, and the defined value is outside the valid range, operations continue by using parameters set up to that point.
However, since an invalid value is stored in the system, make sure you change it to a valid value.
If you restart the LT with invalid values (go off-line, reset, or turn the power OFF), operations will use initial parameter values set up in GP-Pro EX.
#L_ExIOSpParmErr
Pulse output frequency error
|
a: CH1 pulse output frequency error |
[1]: Frequency error, [0]: Normal |
|
b: CH2 pulse output frequency error |
[1]: Frequency error, [0]: Normal |
|
c: CH3 pulse output frequency error |
[1]: Frequency error, [0]: Normal |
|
d: CH4 pulse output frequency error |
[1]: Frequency error, [0]: Normal |
Pulse output shot error
|
a: CH1 pulse output shot error |
[1]: Pulse shot error, [0]: Normal |
|
b: CH2 pulse output shot error |
[1]: Pulse shot error, [0]: Normal |
|
c: CH3 pulse output shot error |
[1]: Pulse shot error, [0]: Normal |
|
d: CH4 pulse output shot error |
[1]: Pulse shot error, [0]: Normal |
Pulse initial output frequency value error
|
a: CH1 pulse initial output frequency value error |
[1]: Initial output frequency error [0]: Normal |
|
b: CH2 pulse initial output frequency value error |
[1]: Initial output frequency error [0]: Normal |
|
c: CH3 pulse initial output frequency value error |
[1]: Initial output frequency error [0]: Normal |
|
d: CH4 pulse initial output frequency value error |
[1]: Initial output frequency error [0]: Normal |
Acceleration/Deceleration pulse parameter warning
|
a:CH1 acceleration/deceleration pulse parameter warning |
[1]: Acceleration/deceleration warning [0]: Normal |
|
b: CH2 acceleration/deceleration pulse parameter warning |
[1]: Acceleration/deceleration warning [0]: Normal |
|
c: CH3 acceleration/deceleration pulse parameter warning |
[1]: Acceleration/deceleration warning [0]: Normal |
|
d: CH4 acceleration/deceleration pulse parameter warning acceleration/deceleration warning |
[1]: Acceleration/deceleration warning [0]: Normal |
Control error
|
a: Pulse output control error |
[1]: Abnormal Frequency Limit Occurred; [0]: Normal |
Actions Upon Acceleration/Deceleration Pulse Error
In the cases below, no pulse is output. (Acceleration/Deceleration table available/not available flag does not turn ON.)
The output terminal does not have the pulse output settings.
The specified CH has already output the output pulse count.
(Normal) The output frequency exceeds 65kHz*1.
(Normal) The initial output frequency is larger than the output frequency.
In the cases below, the output pulse does not depend on the setting parameter.
The total output pulse count is too small. (If the total is less than 21 (normal), deceleration starts before acceleration reaches the output frequency. Furthermore, the output pulse count during acceleration/deceleration is 1 pulse at each phase.)*2
The acceleration/deceleration time is too short. (Since 1 pulse is always output at each phase during acceleration/deceleration, the acceleration/deceleration time does not match the setting value.)*2
The acceleration/deceleration time is too short. (Since 1 pulse is always output at each phase during acceleration/deceleration, the acceleration/deceleration time does not match the setting value.)*2
*1 The pulse output frequency error flag in special I/O parameter error turns ON.
*2 The acceleration/deceleration pulse meter warning flag in the special I/O parameter error turns ON. (The acceleration/deceleration pulse flag turns ON, and the acceleration/deceleration pulse output is available.)
How to calculate the frequency at each phase during acceleration/deceleration
Calculate the frequency for each phase.
Output frequency for n phase = Initial frequency + (Normal output frequency - Initial output frequency)/10 phases* (n phase -1 phase)
Truncate fractional values for the n phase output frequency.
Calculate the pulse shot for each phase.
Output pulse count for n phase = (Acceleration/Deceleration time/10 phases) * (Output frequency for n phase/1000 milliseconds)
Truncate fractional values for the n phase output pulse count.
At least 1 pulse is output. If the pulse shot is 0, use 1 for the pulse shot.
Acceleration/Deceleration pulses necessary for acceleration/deceleration pulse output = (Output pulse count for phase 1 + ... + Output pulse count for phase 10) * 2 + 1 pulse
If this output pulse count is larger than what you set, the acceleration/deceleration pulse parameter warning warns you acceleration/deceleration is excessive.
Calculate the acceleration/deceleration time for each phase
Acceleration/Deceleration time for phase n = Output pulse count for phase n * (1000 milliseconds/Output frequency for phase n)
Truncate fractional values for the n phase acceleration/deceleration time.
Acceleration/Deceleration time necessary for acceleration/deceleration pulse output = Acceleration/Deceleration time for 1st phase + . .+ Acceleration/Deceleration time for the 10th phase
If this acceleration/deceleration time is longer than what you set, the acceleration/deceleration pulse parameter warning warns you acceleration/deceleration is insufficient.
For example, based on the aforementioned calculation, creates the acceleration/deceleration pulse output table using the parameters below. It determines whether the calculated values are subject to "warning."
|
Output Frequency (Hz) |
500 |
|
Output Pulses (pulse) |
300 |
|
Initial Frequency (Hz) |
10 |
|
Acceleration/Deceleration time (milliseconds) |
600 |
The frequency, pulse shot and acceleration/deceleration time for each phase are as follows.
|
n phase |
Frequency |
Pulse shot |
Acceleration/Deceleration time |
|
1 |
10 |
1 |
100 |
|
2 |
59 |
3 |
50 |
|
3 |
108 |
6 |
55 |
|
4 |
157 |
9 |
57 |
|
5 |
206 |
12 |
58 |
|
6 |
255 |
15 |
58 |
|
7 |
304 |
18 |
59 |
|
8 |
353 |
21 |
59 |
|
9 |
402 |
24 |
59 |
|
10 |
451 |
27 |
59 |
Output Pulse Count Total
The total of output pulse counts for all phases is (1+3+6+ ...+27) x 2+1=273. Since the value is smaller than the output pulse count you set, it clears the "acceleration/deceleration is excessive" warning.
Acceleration/Deceleration time total
The total acceleration/deceleration time necessary for all phases is 100+50+55+...+59=61 Since the value is larger than the acceleration/deceleration time you set the "acceleration/deceleration time is insufficient" warning appears.