6 Troubleshooting
- 88 -
Fault Name
Operating
Panel
Display
Cause
Possible Solution
Improper
master/slave
setting
E 46.01
The setting of
A8-10 (Master/
Slave selection
in speed and
position control),
A8-50 (Master/
Slave selection in
load allocation)
and A8-70 (Master/
Slave selection in
droop control) are
different.
Set A8-10, A8-50 and A8-70 to Slave.
STO fault
E 47.00
An STO fault
occurred.
Check whether F8-54 (STO function) is set to 1
(Enabled).
If STO is enabled, check whether drive unit
terminals STO1 and STO2 have 24 V input.
Position
deviation large
E 55.00
In position
synchronization
mode, the pulse
deviation is too
large, the main
reason is that the
slave can not follow
the host pulse, the
detection principle
is that when the
host and slave pulse
deviation value is
more than A8-32
(Value detection of
position error), and
the duration is more
than A8-33 (Time
detection of position
error).
Set A8-32 and A8-33.
Braking fault
E 61.01
Shoot-through of
braking unit
Ensure that the brake pipe is normal;
Check whether there is an external resistor.
E 61.02
Overcurrent of
braking unit
Increase the braking resistance;
Troubleshoot the over-high bus voltage.
E 61.03
Overload of braking
unit
E 61.04
Overheated brake
pipe
Troubleshoot the over-high bus voltage;
Decrease the ambient temperature.
Ensure that the air duct is not clogged;
Ensure that the fan works normally.
Ensure that the thermistor works normally.
Ensure that the brake pipe is normal.
