Mitsubishi Melsec-A Series User Manual page 36

3. SPECJRCATlONS
/MELSEC
(5)
Creep speed
0
This is the low speed used to approach the home position. (See
0
This speed should be
s e t
with consideration for errors in zeroing
Fig. 3.14.)
as well as the impact with the end stop.
1
Zeroing speed starts deceleration.
Drift [according to drive unit)
Zero-phase signal
Adjust the actuator
so
that it5
OFF
position is near the center of the
zero-phase signal.
P / / I / / / / I / / / / R
Torque limit valid range
1
J
Fig.
3.14
Zeroing and Creep Speeds
(6)
Zeroing dwell time
0
This is the period of time starting from when the actuator is
turned on to when home positioning is complete.
0
Set the time interval to allow the creep speed to stabilize and the
drive to hit the mechanical stopper.
0
When the dwell timer home positioning method is not being
used, this may be set to any value within the setting range.
(7) Torque limit
0
Sets a limit for the
servo motor torque after the creep speed
is reached.
I
POINT
I I
I I
0
A D/A converter module is necessary for torque limiting.
0
Any value within t h e setting range may be specified if the
torque limit zeroing method is
not
being used.
PC
I
Torque limit value
1 - 1
Read
7 1
I
r : i : :
Drive unit
Operation
converter unit
by program
(Analog amount)
I I
Fig. 3.15 Torque Limit Block Diagram
3-21
IB
INAi 66101-C