SafeShield Safety Light Curtain Hardware User Manual
34
Table 21: Error displays of the 7-segment display (continued)
Display Possible Cause Remedying the Error
SafeShield function
module
➢ Interrupt the supply of power to the
SafeShield safety light curtain and to the
function module for at least 3 seconds.
➢ If the problem persists, replace the
function module.
Overcurrent at
switching output 1
➢ Check the contactor. Replace, if
necessary.
➢ Check the wiring for short-circuit to
0V.
Short-circuit at
switching output 1
➢ Check the wiring for short-circuit to
24V.
Short-circuit at
switching output 1
➢ Check the wiring for short-circuit to
0V.
Overcurrent at
switching output 2
➢ Check the contactor. Replace, if
necessary.
➢ Check the wiring for short-circuit to
0V.
Short-circuit at
switching output 2
➢ Check the wiring for short-circuit to
24V.
Short-circuit at
switching output 2
➢ Check the wiring for short-circuit to
0V.
Short-circuit
between switching
output 1 and 2
➢ Check the wiring and rectify the error.
Teach-in key-
operated switch
or emergency
stop button fault
➢ Check whether the configuration of the
teach-in key-operated switch or
emergency stop button in the SCD
matches the electrical connection.
➢ Check the function of the teach-in key
operated switch or emergency stop
button.
Invalid
configuration of
the EDM
➢ Verify that the machine-side EDM is
connected correctly.
External sender
detected
➢ Check the distance from reflective
surfaces (page 20) or from other light
curtains.
➢ If necessary, re-configure the device
with another beam coding (page 13) or
install non-reflective partitions.
Connection
problem between
host and guest
➢ Check the connection between the
cascaded devices. If necessary, replace
defective cables.
Communication in
cascaded system
failed
➢ Verify the configuration of the system
using the SCD software. Retransfer the
corrected configuration to the system.
➢ Check the connection between the
cascaded devices. If necessary, replace
defective cables.
Supply voltage too
low
➢ Check the supply voltage and the
power supply. If necessary, replace
defective components.
Fault in PSDI
mode
➢ Verify the configuration of the system
using the SCD software. Retransfer the
corrected configuration to the system.
➢ Check the switch for the machine cycle
contacts. Ensure that these are
correctly connected and configured.
Replace this if necessary.
Status Indicators on the
SafeShield Safety Light Curtain
Table 22: Status indicators of the sender
Table 23: Status indicators of the receiver
Extended Diagnosis
The SCD software supplied with the device includes extended
diagnostic options. It allows you to narrow down the problem if the
error is non-specific or if you experience usage downtime
problems. Detailed information to be found …
• In the online help for the SCD.
• In the user manual for the SCD.
Display Meaning
● Yellow
Supply voltage o.k.
System error. Disconnect the supply voltage to the SafeShield
safety light curtain for at least 3 seconds. If the problem
persists, replace the unit.
The device is in the test mode.
Noncoded operation (only after switching on)
Operation with code 1 (only after switching on)
Operation with code 2 (only after switching on)
Other
displays
All other displays are error messages.
Display Meaning
●Orange
Cleaning or realignment required
✺ Yellow
Reset required
● Red
System providing signals for shutting down the machine (output
signal switching devices off)
● Green
System enabled (output signal switching devices on)
Bypass active (only in conjunction with the SafeShield function
module)
System error. Disconnect the supply voltage to the SafeShield
safety light curtain for at least 3 seconds. If the problem
persists, replace the unit.
Poor alignment to sender. Please refer to section “Aligning
Sender and Receiver on page 30.
Operation with large protective field width (only after
switching on)
Operation with reduced resolution and/or blanking
Non-coded operation (only after switching on)
Operation with code 1 (only after switching on)
Operation with code 2 (only after switching on)
Emergency stop active
Other
displays
All other displays are error messages.
