Led Indications - CARLO GAVAZZI LDD1 Manual De Instrucciones

5. LED indications

In general, LDD Loop Detectors have 3 categories of LED indications; namely Power/Fault indicator
LED, Loop state LED and Relay state LED:
Single loop (LDD1)
L11 L12 E1
R21 R22 R23
5 6
LOOP
4 7
8
3
RELAY 1
2 9
10
1
RELAY 2
SENSITIVITY
R11 R12 R13
A1 A2 E2
Dual loop (LDD2)
L11 E1 L21
R21 R22 R23
5 6
4
7
3
8
LOOP 2
2 9
10
1
RELAY 2
SENSITIVITY 2
5 6
4 7
3 8
LOOP 1
9
2
1 10
RELAY 1
SENSITIVITY 1
R11 R12 R13
A1 A2 E2
Loop state LED
LED colour LED constant
Inductance OK
Inductance too high
Loop is open circuit
Relay state LED
LED colour Mode
Presence mode
Pulse mode, 0.1 s
Pulse mode, 0.5 s
Power / fault indicator
LED colour LED constant
All OK (ASB OFF)
All OK (ASB ON)
Low signal indication
Channel crosstalk
Loop state LED
LED colour LED constant
Inductance OK
Inductance too high
Loop is open circuit
Relay state LED
LED colour Mode
Presence mode
Pulse mode, 0.1 s
Pulse mode, 0.5 s
Power / fault indicator
LED colour LED constant
All OK (ASB OFF)
All OK (ASB ON)
Low signal indication
Channel crosstalk
Rev.00 - 03.2019 | LDD1/LDD2 Single and Dual Loop Detector | © 2019 | CARLO GAVAZZI Industri
Inductance too low
Loop is short circuit
Relay
deactivated
LED OFF
LED OFF
LED OFF
DIP switch changed, but
changes not in effect
Indication of the frequency
-
Inductance too low
Loop is short circuit
Relay
deactivated
LED OFF
LED OFF
LED OFF
DIP switch changed, but
changes not in effect
Indication of the frequency
-
LED Flashing
-
Relay activated
LED ON
LED ON for 0.5 s
LED ON for 1.0 s
LED Flashing
-
-
-
channel
LED Flashing
-
Relay activated
LED ON
LED ON for 0.5 s
LED ON for 1.0 s
LED Flashing
-
-
-
channel
9