Mitsubishi Electric A800 Plus Series Function Manual page 114

6
Mechanical specifications setting
Set the following parameters according to the specifications of the machine used. Refer to 10.4 (Application
examples) on page 199.
Pr.
1235 Maximum winding diameter 1
1236 Minimum winding diameter 1
178 to 189 Input terminal function selection
1230 Winding/unwinding selection
Winding diameter storage
645
selection
Winding diameter change
1247
increment amount limit
Gear ratio numerator (follower
1243
side)
Gear ratio denominator (driver
1244
side)
7 Acceleration time
8 Deceleration time
First acceleration time for line
394
speed command
First deceleration time for line
395
speed command
Second deceleration time for
101
line speed command
Line speed command
393 acceleration/deceleration
reference
1231 Material thickness d1
1072 Tension reverse selection
Torque command reverse
1114
selection
∗1
Set the parameter according to the specification of the machine used.
∗2
The increment applies when Pr.21 = "0 (initial value)".
∗3
The increment applies when Pr.358 = "0 (initial value)".
7
Tension command input selection
Set the following parameter according the tension input method.
Pr. Name
Tension / Torque command
804
source selection
Parameter setting procedure for tension sensorless torque control
Name Setting
∗1
∗1
114
109
117
∗1
∗1
∗1
∗1
∗1
0 s
0 s
∗1
∗1
∗1
∗1
∗1
∗1
∗1
Setting
Tension command by terminal 1 analog input (-10 to 10 VDC)
0
Tension command by terminal 6 analog input (-10 to 10 VDC)
(initial value)
(FR-A8AZ)
1 Tension command by the parameter setting (Pr.365 or Pr.366)
2 Tension command by the pulse train command (FR-A8AL)
Tension command via CC-Link communication
3 (FR-A8NC/FR-A8NCE)
Tension command via PROFIBUS-DP communication (FR-A8NP)
4 Tension command by 12/16-bit digital input (FR-A8AX)
5 Tension command via CC-Link communication
(FR-A8NC/FR-A8NCE)
6
Tension command via PROFIBUS-DP communication (FR-A8NP)
TENSION SENSORLESS TORQUE CONTROL
Remarks
Set the maximum/minimum value in millimeter relative to the
winding diameter calculation result.
Set "114" for the X114 signal.
Set "109" for using the Stored winding diameter clear (X109)
signal.
Set "117" for using the Winding length clear (X117) signal.
0: Winding shaft
1: Unwinding shaft
0: Not stored.
1: The present winding diameter is stored.
Set the maximum change in 0.001 mm increments per winding
diameter calculation.
Set a gear ratio when a reduction gear is installed between the
driving shaft and motor shaft. (The increment is 1 for each
parameter.)
The increment is 0.1 seconds.
∗2
Setting is required in 0.1 second increments when the cushion
time is not considered for the line speed command.
Set the time in 0.1 second increments as required (for example,
for rapid deceleration). Turn ON the X105 signal to enable the
∗2
setting.
Set the reference line speed (travel amount per minute) in 0.1 m
increments for the acceleration/deceleration time for the line
speed command.
∗3
Setting is required in 0.001 mm increments when thickness is
used for winding diameter calculation.
Set the torque generation direction in accordance with the
machine used.
Input terminal
∗2
5
113