Mitsubishi Electric FR-E700EX Instruction Manual page 101

Sensorless servo drive unit, applied
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(3)
Roll feed mode (Pr.537 = "1")
 The current position and position command are set to 0 at start, and then position control is performed.
 Because the current position and position command are set to 0 at start, position commands are not overflowed and the
repeated feed by the increment is available.
 With this setting, no home position return is required.
 The following shows an operation example with the parameter setting shown in the table below.
<Point table position control in the roll feed mode (Pr.537 = "1")>
Point
Position data
table
[Before electronic gear]
1
Pr.465 = "1000", Pr.466 = "0"
2
Pr.467 = "1000", Pr.468 = "0"
3
Pr.469 = "500", Pr.470 = "0"
Servo-ON (SON)
or pre-excitation (LX)
Table selection (RH)
Table selection (RM)
Table selection (RL)
Forward rotation start (STF)
Reverse rotation start (STR)
Target position
[before electronic gear]
Current position
[before electronic gear]

The start command must remain ON for 20 ms or longer.

Wait for 5 ms or longer after the table selection signal is turned ON. Then, turn ON the start signal.
Maximum
speed
Pr.4 = "2000r/min"
Pr.5 = "1500r/min"
Pr.6 = "2000r/min"
ON
∗2
ON
∗1
∗1
1000
Pr.4 = 2000r/min
Speed command
0
Slope set by Pr.578
Slope set by Pr.580
Slope set by Pr.579 Slope set by Pr.581 Pr.6 = 2000r/min
Travel distance
= 1000
2000
1000
0
0 clear
Acceleration
Deceleration
time
time
Pr.578 = "1s"
Pr.579 = "1s"
Pr.580 = "2s"
Pr.581 = "2s"
Pr.582 = "1s"
Pr.583 = "1s"
ON
ON
ON
∗2
ON
2000
-500
Pr.5 = 1500r/min
Slope set by Pr.582
Slope set by Pr.583
Travel distance
Travel distance
= 1000
= -500
0 clear
-500
-1000
Position control
Table selection
Auxiliary
signal
function
RH
RM
Pr.525 = "1"
Pr.526 = "10"
Pr.527 = "100"
∗2
ON
-1000
Time
Travel distance
= -1000
0 clear
time
RL
4
99

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