Maxsine EP3 AC Series, User Manual

Page: 212 / 246

Chapter 7 Alarm
202
Err 4(Position deviation)
Potential cause Check Handle
Servomotor U
、
V
、
W
connection is not correct
Check U
、
V
、
W wiring Correct U
、
V
、
W wiring. The U
、
V 、 W must connect with servo
driver terminal U
、
V
、
W
correspondently.
Encoder zero point
changes Check the encoder zero
point Install the encoder again and adjust
the zero point.
The encoder wiring error Check the encoder wiring Correct wiring
The servomotor is blocked Check the servomotor
shaft and its mechanical
connection
Repair.
The command pulse
frequency is too high Check input frequency and
the parameter of
division/multiplication  Slow down the input
frequency.
 Adjust the parameter of
division/multiplication.
The gain of position loop
is too small Check the parameters P009
and P013 Increasing the gain of position
loop.
The excess position
deviation range is too
small Check the parameter P079 Increasing the value of parameter
P079.
Torque is not enough big Check torque  Increase the torque limit.
 Increase smooth filtering time
for position command.
 Reduce load.
 Replace the servo driver and
servomotor with bigger ones.
Err 7 (Drive inhibition abnormal)
Potential cause Check Handle
The CCWL and/or CWL
over-travel inhibition is
invalid when servo is on Check CCWL
、
CWL
wiring
 Correct input CCWL
、
CWL
signal.
 If not use CCWL 、 CWL signal
can shield it by setting
parameter P097.