Diagnostics and troubleshooting
Leuze electronic
LES 36
126
TNT
35/7-2
4
V
12.2
Interface error
No laser line
Sensor not activated
Activate sensor via PIN 2 on X1.
Laser was deactivated in
command mode with the
"Set Laser Gate" com-
mand
Switch on laser.
See "Set Laser Gate" on page 103.
Sensor in trigger mode
Activate single measurement by means of Ethernet
trigger or via PIN 5 on X1.
Sensor does not respond to
trigger
Sensor in command mode Exit command mode with the "Exit Command Mode"
command.
Triggering too fast.
Reduce trigger rate. The shortest possible interval
between two successive trigger signals is 10ms.
See "Triggering - Free Running" on page 23.
Sensor cannot be deacti-
vated via the activation
input
Activation Input set to
"Disregard"
Use LESsoft to configure the activation input to
"Regard". See "Activation" on page 75.
Error
Possible error causes
Measures
Table 12.1:
General causes of errors
Error
Possible error causes
Measures
No connection
Yellow LED not illuminated
Wiring error
Check Ethernet cable.
No connection
Yellow LED not illuminated
DHCP activated in net-
work, no fixed or alternate
network address
assigned.
Assign alternate IP address, see "Establish connec-
tion to PC" on page 60.
Incorrect IP address/sub-
net mask set on LES.
Check IP address/subnet mask,
IP addresses
of LES
and control must be
different
,
subnet mask
however
must be the same
, see Table 8.1 "Address allocation
Incorrect port assigned to
LES / control
Using ping command check whether the sensor
responds. If so, check port assignment to LES and
control. The set ports must match.
Firewall blocks ports
Switch off firewall temporarily and repeat connection
test.
Table 12.2:
Interface error
