Selecting The Internally Set Speeds; Operation - Omron SMARTSTEP 2 SERIES User Manual

5-2 Internally Set Speed Control

Selecting the Internally Set Speeds

The four internally set speeds are switched by using the
(VSEL1) and Internally Set Speed Selection 2 Input (VSEL2).
Internally set speed
No. 1 Internally Set Speed (Pn53)
No. 2 Internally Set Speed (Pn54)
No. 3 Internally Set Speed (Pn55)
No. 4 Internally Set Speed (Pn56)

Operation

5
RUN Command (RUN)
Zero Speed Designation (VZERO)
Internally Set Speed Selection1 (VSEL1)
Internally Set Speed Selection 2 (VSEL2)
The Servomotor accelerates according to
the Soft Start Acceleration Time (Pn58).
Note If more than one internally set speed selection signal is switched at the same time (e.g., as
5-5
Internally Set Speed Selection 1
Input (VSEL1) (CN1-6)
Stop
Speed
when switching from Speed 2 to Speed 3), an internally set speed signal in the process of
switching may be temporarily selected. (For example, Speed 1 or Speed 4 may be
temporarily selected.)
The internally set speed command may be temporarily performed with a sudden change,
especially if the acceleration or deceleration time is set to 0 or small value, or if the speed
difference between internally set speed commands is large. Use this function with the
following precautions.
Avoid switching more than one internally set speed selection signal at the same time.
Set both Soft Start Acceleration Time and Soft Start Deceleration Time so that the speed
changes gradually and avoid a sudden change.
Internally Set Speed Selection 1 Input
OFF
ON
OFF
ON
Servo ON
Drive
ON ON
OFF
ON
OFF OFF
Speed 2
Speed 4
Speed 1
Internally Set Speed Selection 2
Input (VSEL2) (CN1-4)
OFF
OFF
ON
ON
OFF
The Servomotor
ON
decelerates
according to
the Soft Start
Deceleration
Speed 3
Time (Pn59).
Time