Mitsubishi Electric FR-A700-A1 Instruction Manual page 74

(3) Example 2 of FR-A700-A1 parameter setting
[Machine specification] Winding shaft of wiredrawing machine
Minimum diameter: 280mm, Maximum diameter: 400mm
Gear ratio: 1/1.2 , Maximum line speed: 2000m/min
Dancer signal: 0 to 10V input
Main speed command: 0 to 10V analog signal (with 90s of acceleration/deceleration cushion time)
Initial winding diameter calculation: disabled
Diameter storage: enabled, Tension setting output: unnecessary
Parameter Name
7
Acceleration time
8 Deceleration time
9 Electronic thermal O/L relay
10
DC injection brake operation frequency
13
Starting frequency
52 DU/PU main display data selection
71 Applied motor
73 Analog input selection
79
Operation mode selection
80 Motor capacity
81 Number of motor poles
Terminal 2 frequency setting gain
125
frequency
128
PID action selection
129 PID proportional band
130 PID integral time
133 Target dancer position
134
PID differential time
180
RL terminal function selection
181 RM terminal function selection
186 CS terminal function selection
Terminal 1 added compensation
242
amount (terminal 2)
369 Number of encoder pulses
706 Speed compensation gain
Sampling time for winding diameter
707
calculation
compensation for wiredrawing machine
Initial
Setting
Value
Setting to perform dancer control
5s 0.1s (0.1s is set for EMI influence. Performance of dancer control
deteriorates if the setting is too large.)
5s 0.1s
Rated
For vector control dedicated motor (motor overheat protection by
inverter 0A
Klixon)
current
3Hz 0Hz
0.5Hz 0Hz
Setting for monitors ("4042": winding diameter(40) is set in the
second monitor, line speed (42) is set in the third monitor.)
Other monitor settings related to dancer control
0 4042
27: Dancer position (%), 41: Main speed, 43: Dancer
compensation speed, 44: Winding diameter compensation speed,
45: Winding/unwinding length, 54: Dancer position deviation
0 30 Mitsubishi vector control dedicated motor (SF-V5RU)
Main speed (terminal 2) 0 to 10V, dancer (terminal 1) 10 setting,
1 0
polarity irreversible
0 2 Fixed to External operation mode
9999 7.5kW
9999 4P
Setting is made according to the rotation speed at V
the speed command at the time (maximum voltage command for
60Hz 90.95Hz
terminal 2 to 5.)
 =V /(  D
max
Dancer control (forward action)
10 41 (Compensation direction is reversed when minimum dancer input
is 8V and maximum is 2V)
100% 250%
1s 5s
Upper and lower limit dancer positions (set Pr. 52 = "27" to show
500% 550.0%
%) are confirmed before setting target dancer position.
Setting to suppress transient fluctuation caused by traverse edge.
Should be set gradually starting from 0.01s to bear mechanical
9999 0.05s
disturbance (fluctuation).
(Should be cautious as it causes hunting.)
When dancer/winding diameter compensation are enabled ... X83
0 83 signal is ON. (Setting must be made when dancer control function
is used.)
1 55 Diameter storage clear: cleared by X55 signal is ON.
6 7 To input external signal of Klixon for SF-V5RU.
Dancer signal input is not added when normal operation is
100% 0%
performed with X83 OFF. (No terminal 1 added compensation)
1024 2048
Setting when compensation rate needs to be constant. Setting for
0% 100%
X35 is not necessary.
Setting to make operation smooth by filtering winding diameter
9999 1s
calculation.
Dancer control with winding diameter
Description
 gear ratio)
min
D and
max, min
5
71