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MELSEC-
A
14 TROUBLESHOOTING
Relevant buffer memory address
remote input/output device, or remote
register
Setting range Remedy
Axis 1 Axis 2
RY(n+2)7 RY(n+4)7
<Speed change request>
ON: Speed change request
Do not change the speed during deceleration or
stoppage caused by a stop command or during
automatic deceleration under position control.
New speed value <New speed value, speed limit value>
<In standard mode>
1 to 1000000 [pulse/s]
1 to 600000000 [mm/min, etc.]
<In stepping motor mode>
1 to 62500 [pulse/s]
1 to 37500000 [mm/min, etc.]
[In case of new speed value, the
minimum setting is “0.”]
Change the new speed to a value within the range from
0 to the “speed limit value.”
RWwm+4
RWwm+5
RWwm+12
RWwm+13
Speed limit value
6, 7 156, 157
RY(n+2)6 RY(n+2)6
<M code OFF request>
ON: The M code ON signal is turned
OFF.
Correct the ON/OFF timing of the “M code OFF
request.” (Refer to section 12.7.3)
Refer to section “5.3 List of positioning
data.”
<Operation pattern>
00: Positioning complete
01: Continuous positioning control
11: Continuous path control
Specify the end of operation at the 50th point. (Refer to
Chapter 10)
Reduce the FOR to NEXT nesting structure to one.
(Refer to section 10.3.9)
Do not turn ON the speed/position changeover signal
during acceleration.
(Refer to section 9.2.9)
Issue a speed change request at a position where the
sufficient remaining distance is left.
1174 1224
<Step start information>
0: End of reception of step start
1: Step continue
2: Restart
Do not specify “1: Step continue” in the “step waiting”
axis status.
Do not specify “1: Step continue” or “2: Restart” in the
“step error occurring,” “error occurring,” “waiting,” or
“stopped” axis operation status.
62 212
<External start function selection>
0, 1, 2
Change “external start function selection” in detail
parameter 2 to within the setting range.
Refer to section “5.3 List of positioning
data.”
Change the positioning data to an address or
movement amount sufficient for deceleration.
Refer to section “5.3 List of positioning
data” for the command speed.
<Command speed, speed limit value>
<In standard mode>
1 to 1000000 [pulse/s]
1 to 600000000 [mm/min, etc.]
<In stepping motor mode>
1 to 62500 [pulse/s]
1 to 37500000 [mm/min, etc.]
Change the command speed to within the setting
range.
Speed limit value
6, 7 156, 157
1100
1101
Hours: 00 to 23
Minutes: 00 to 59
Seconds: 00 to 59
Enter settings within the setting range in BCD codes.