Unit - Omron CJ1W-NC271 - 12-2009 Operation Manual

Changing to CS1W/CJ1W-NC271/471/F71 from CS1W/CJ1W-NC113/133/213/233/413/433
CS1W/CJ1W-NC271/471/F71
The rate of increase or decrease in speed within a specified time unit is set in the following Servo Parameters.
Type Parameter
No.
Acceler- Pn80A
ation/
deceler-
Pn80B
ation
con-
stants
Pn80C
Pn80D
Pn80E
Pn80F
Each parameter is set in the Servo Drive via the PCU using the PCU's Servo Parameter transfer functions
(WRITE/SAVE SERVO PARAMETER Bits).
When using a trapezoidal curve (linear acceleration/deceleration) with the initial speed set to 0 (pulses/s), the
set values for the origin search acceleration time and origin search deceleration time used in the earlier PCUs
are converted to the following settings.
Pn80A (first-step linear acceleration constant):
The origin search uses a first-step acceleration/deceleration curve, so this parameter setting is not
used.
Pn80B (second-step linear acceleration constant):
The maximum speed, initial speed, and origin search acceleration time in the axis parameters of ear-
lier PCUs are converted to the value determined from the following equation.
Pn80B =
Pn80C (acceleration constant switching speed):
The origin search uses a first-step acceleration/deceleration curve, so this parameter is set to 0
(default setting).
Pn80D (first-step linear deceleration constant):
The origin search uses a first-step acceleration/deceleration curve, so this parameter setting is not
used.
Pn80E (second-step linear deceleration constant):
The maximum speed, initial speed, and origin search deceleration time in the axis parameters of ear-
lier PCUs are converted to the value determined from the following equation.
Pn80E =
Pn80F (deceleration constant switching speed):
The origin search uses a first-step acceleration/deceleration curve, so this parameter is set to 0
(default setting).
636
Parameter name
First-step linear accel- 10,000 command
eration constant
units/s
Second-step linear 10,000 command
acceleration constant
units/s
Acceleration constant 100 command
switching speed units/s
First-step linear decel- 10,000 command
eration constant
units/s
Second-step linear 10,000 command
deceleration constant
units/s
Deceleration constant 100 command
switching speed units/s
Maximum speed − Initial speed (0)
Origin search acceleration time × 10
Maximum speed − Initial speed (0)
Origin search deceleration time × 10

Unit

Setting range
1 to 65535
2
1 to 65535
2
0 to 65535
1 to 65535
2
1 to 65535
2
0 to 65535
(×10,000 pulses/s
(×10,000 pulses/s
Appendix E
Parameter Default
size setting
2 100
2 100
2 0
2 100
2 100
2 0
2
)
2
)