Omron G5 R88D-KE Series, User Manual

Page: 362 / 506

7 Parameter Details
7 - 28
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User’s Manual
• If you enabled a range of Internally Set Speed settings in Command Speed Selection (Pn300), set in
units of r/min the first to fourth internally set speeds in Pn304 to Pn307 or the fifth to eighth internally
set speeds in Pn308 to Pn311.
• The +/– sign prefixed to the set value indicates the polarity of the internally set speed command.
• The absolute value of this parameter setting is limited by the value set in Overspeed Detection Level
Setting (Pn513).
• Set the acceleration/deceleration speed applied inside the Servo Drive to control the motor speed.
• The soft start function can be used with stepwise speed command input or internal speed settings.
• If the Servo Drive is used in combination with an external position loop, do not set these acceleration
and deceleration time parameters. (Set both Pn312 and Pn313 to 0.)
• Set the pseudo S-curve acceleration/deceleration value to add to the speed command to enable
smooth operation. This is useful for applications where impact may occur due to a large change in
acceleration or deceleration when the Servomotor starts or stops with linear acceleration or
deceleration.
Pn311
No. 8 Internally Set Speed
Setting
range
–20,000 to 20,000 Unit r/min Default
setting
0 Cycle the
power supply
–
+ Forward when viewed from shaft end
– Reverse when viewed from shaft end
Pn312
Soft Start Acceleration Time
Setting
range
0 to 10,000 Unit ms/(1,000 r/min) Default
setting
0 Cycle the
power supply
–
Pn313 Soft Start Deceleration Time
Setting
range
0 to 10,000 Unit ms/(1,000 r/min) Default
setting
0 Cycle the
power supply
–
Pn314
S-curve Acceleration/Deceleration Time Setting
Setting
range
0 to 1,000 Unit ms Default
setting
0 Cycle the
power supply
–
Speed
Speed
Speed
Speed
Acceleration time Deceleration time
Internally
set speed
1,000 r/min
Speed
ta td
ts ts ts ts
1. Set the acceleration time and the deceleration time for the basic
straight-line portion in Pn312 and Pn313.
2. Set the acceleration/deceleration time (in units of 2 ms) for the S-curve
portion in Pn314 as the duration centered at the inflection point of the
linear acceleration/deceleration.
ta: Pn312
td: Pn313
ts: Pn314
Speed
Use the following settings.
ta
2
> ts, and > ts.
td
2