Rockwell Automation 440L GuardShield PAC Type 4 Safety Light Curtain - Manual (Page 22)

GuardShield™ PAC Safety Light Curtain Installation Instructions
20
Original instructions
Teach Function
Procedure:
Step 1 Open cover of the end cap (LED blinks: Receiver is
red LED, Transmitter is amber LED).
Step 2 Select the desired switch setting.
Step 3 Press and hold the Teach button. The yellow LED
flashes at 10 Hz (10x per second).
Step 4 The yellow LED will stop blinking while the button is
depressed. After the yellow stops flashing, release
the teach button within 2 seconds.
• After 3 flashes of the yellow LED the function is
activated.
Step 5 Close and secure the cover.
IMPORTANT
The doors on the transmitter and receiver
must be closed for the GuardShield PAC to
operate.
If the GuardShield PAC teach procedure is not
properly completed, the unit will remain in
the previous operating mode.
Once the teach function is completed and the
door secured, verify that the operating mode
has changed to the intended mode.
Troubleshooting Guide
The light curtain carries out an internal self-test after startup. If an
error occurs, an appropriate signal combination is sent through
the LEDs to the transmitter and receiver.
Condition
No. Error Description Action
6
Internal fault, receiver • Check configuration of transmitter
and receiver
• Replace receiver
7 Internal fault, transmitter • Check configuration of transmitter
and receiver
• Check protective field transmitter/
receiver
• Check connections transmitter/
receiver
• Exchange transmitter
8 External fault • Check connections of OSSD outputs
for short circuit against +24V DC
and GND (cable, connected devices)
• Exchange receiver
9 External fault (MPCE error)
The function Relay monitoring is
activated and after clearing the OSSD
the input Relay monitoring does not
recognize a change of state. • Check connection Relay monitoring
• Check connected relay for closed
contact (if OSSD ON—input Relay
monitoring must have GND level, if
OSSD OFF—input Relay monitoring
must have +24V)
• Switch on only after POWER OFF/ON
10 Configuration mode (Receiver) • Cover for DIP switch setting at the
receiver is open
11 Configuration mode (Transmitter) • Cover for DIP switch setting at
transmitter is open