SMC Networks LECSN-T Series User Manual

8. TROUBLESHOOTING
8 - 62
Alarm No.: E6
Name: Servo forced stop warning
Alarm content
・EM2/EM1 (Forced stop) turned off.
・
SS1 command was inputted.
Detail
No.
Detail name
Cause
Check method
Check result
Action
E6.1
Forced stop
warning
(1)
EM2/EM1 (Forced stop)
turned off.
Check the status of
EM2/EM1.
It is off.
Ensure safety and turnbon
EM2/EM1 (Forced stop).
It is on.
Check (2).
(2)
The external 24 V DC
power supply is off.
Check if the external 24
V DC power supply is
inputted.
It is not inputted.
Input the 24 V DC power
supply.
It is inputted.
Check (3).
(3)
The driver is
malfunctioning.
Replace the driver, and
then check
the repeatability.
It is not repeatable.
Replace the driver.
E6.2
SS1 forced
stop
warning 1
(safety
observation
function)
(1)
The SS1 command is
off (enabled).
Check if the SS1
command is off
(enabled).
The SS1 command is
off (enabled).
Turn on the SS1 input
(disabled).
(2)
An external 24 V DC is
not inputted to the
functional safety unit.
Check if an external 24
VDC is inputted to the
functional safety unit.
It is not inputted.
Input the 24 V DC power
supply.
It is inputted.
Check (3).
(3)
The functional safety
unit is malfunctioning.
Replace the functional
safety unit, and then
check the
repeatability.
It is not repeatable.
Replace the functional
safety unit.
E6.3
SS1 forced
stop
warning 2
(safety
observation
function)
(1)
An error occurred in the
safety communication.
Check the description
"The display shows
"Ab".".
⇒Page 124 Trouble
which does not trigger
alarm/warning
It is not repeatable.
Take countermeasures
against its cause.
Alarm No.: E7
Name: Controller forced stop warning
Alarm content
The forced stop signal of the servo system controller was enabled.
Detail
No.
Detail name
Cause
Check method
Check result
Action
E7.1
Controller
forced stop
input warning
(1)
The forced stop signal
of the controller was
inputted with Modbus
RTU communication.
Check if the controller
is in a forced stop
status.
It is the forced stop
status.
Ensure safety and
cancel
the forced stop signal
of the controller.
Alarm No.: E8
Name: Cooling fan speed reduction warning
Alarm content
The cooling fan speed decreased to the warning occurrence level or less.
Detail
No.
Detail name
Cause
Check method
Check result
Action
E8.1
Decreased
cooling fan
speed warning
(1)
Foreign matter was
caught in the cooling
fan.
Check if a foreign
matter is caught in the
cooling fan.
Something has been
caught.
Remove the foreign
matter.
Nothing has been
caught.
Check (2).
(2)
Cooling fan life expired.
Check the total of
power on time of the
driver.
It exceed the cooling
fan life.
Replace the driver.
E8.2
Cooling fan stop
Check it with the check method for [AL. E8.1].

SMC Networks LECSN-T Series Specifications

General

Brand	SMC Networks
Model	LECSN-T Series
Category	Controller
Language	English