IDEC MICROSmart FC6A Series Ladder Programming Manual page 337

■ Settings tab
This tab configures the operation of the ZRN instruction functions.
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9. ZRN Mode
Select ZRN mode 0 or ZRN mode 1 for the zero return method according to the applicable system.
Setting
ZRN mode 0 The zero return is performed by monitoring only the proximity signal.
ZRN mode 1 The zero return is performed by monitoring the proximity signal and the origin signal.
10. Initial Pulse Frequency
Specifies the frequency when pulse output starts.
Set between 15 Hz and 100,000 Hz in 1 Hz increments. When using the ZRN3 or ZRN4 instruction with the All-in-One CPU
module, set between 15 Hz and 5,000 Hz in 1 Hz increments. The output frequency error is within ±5%.
11. Creep Pulse Frequency
After decreasing the pulse frequency has completed, this specifies the frequency when the pulses are steady.
Set between 15 Hz and 100,000 Hz in 1 Hz increments. When using the ZRN3 or ZRN4 instruction with the All-in-One CPU
module, set between 15 Hz and 5,000 Hz in 1 Hz increments. The output frequency error is within ±5%.
12. Error status
Outputs the error code that corresponds to the content of an error when there is an error in the settings. If a configuration error
occurs when the ZRN instruction is being executed, M8004 (user program execution error) is turned on and this relay is set to
the error code.
Error Code
0 Normal
2 Pulse frequency designation error
5 Frequency change time designation error
7 Control direction designation error
Initial pulse frequency designation
9
error
Creep pulse frequency designation
10
error
*1 Set the initial pulse frequency so that it is lower than the steady pulse frequency.
*2 Set the creep pulse frequency so that it is lower than the steady pulse frequency.
13. Steady pulse frequency
After increasing the pulse frequency has completed, this specifies the frequency when the pulses are steady.
Set between 15 Hz and 100,000 Hz in 1 Hz increments. When using the ZRN3 or ZRN4 instruction with the All-in-One CPU
module, set between 15 Hz and 5,000 Hz in 1 Hz increments. The output frequency error is within ±5%.
14. Acceleration time
This setting specifies the time to increase the pulse frequency.
Set the time between 10 and 10,000 ms in increments of 1 ms. The first digit of the setting is handled as zero. For example, if
144 is entered, the set value is handled as 140 ms.
Status
FC6A S MICROS L
ERIES MART
Description
The initial pulse frequency, creep pulse frequency, or steady pulse frequency
was not set to a value between 15 to 100,000 Hz.
The frequency change time was not set between 10 and 10,000.
The control direction was not set to 0 or 1.
The initial pulse frequency was set to the same frequency as the steady pulse
frequency or it was set to a value larger than the steady pulse frequency.
The creep pulse frequency was set to the same frequency as the steady
pulse frequency or it was set to a value larger than the steady pulse
*2
frequency.
P M
ADDER ROGRAMMING ANUAL
18: P O
ULSE UTPUT
Description
—
FC9Y-B1726
I
NSTRUCTIONS
*1
18-41