
GuardShield™ Safety Light Curtain User Manual
20
Original instructions
System Status Indicators
8 through 13 = Fault conditions
Flash rate is approximately 2 Hz (2 times per second)
Note: For fault conditions 8 through 13, see Troubleshooting guide on page 19.
Receiver LEDs Transmitter LEDs
Condition No.
OSSDs
OFF
Red
OSSDs
ON
Green
Blanking
Yellow
Alignment
Amber
Interlock
Yellow
Power
On
Amber
Emitting
Yellow
1 OFF ON OFF OFF OFF ON ON
2 ON OFF OFF OFF OFF ON ON
3 ON OFF OFF ON OFF ON ON
4 ON OFF OFF OFF ON ON ON
5 OFF ON ON OFF OFF ON ON
6 OFF ON FLASH OFF OFF ON ON
7 ON OFF OFF OFF OFF ON OFF
8 FLASH OFF OFF OFF OFF ON ON
9 ON OFF OFF OFF OFF FLASH ON
10 FLASH OFF OFF ON OFF ON ON
11 FLASH OFF OFF OFF ON ON ON
12 FLASH OFF DATA TRANS OFF OFF ON ON
13 ON OFF OFF OFF OFF FLASH DATA TRANS
Condition No.
Description
1
Guard only mode, light curtain unobstructed (aligned, not in interlock)
2
Guard only mode, light curtain interrupted (aligned, not in interlock)
3
Guard only mode, misaligned (not in interlock)
4
Guard only mode, in start or restart interlock (aligned)
5
Fixed blanking mode (aligned, not in interlock)
6
Floating or Floating/Fixed Blanking mode (aligned, not in interlock)
7
Transmitter test input active (pin 4)
8
Internal fault, receiver
9
Internal fault, transmitter
10
External fault (OSSD short to ground, +V, or cross connection)
11
External fault (MPCE/EDM error)
12
Configuration mode (receiver access door open)
13
Configuration mode (transmitter access door open)
Receiver Transmitter
OSSDs OFF
Blanking
Emitting
OSSDs ON
Interlock
Alignment
POWER ON
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