CARLO GAVAZZI LDD1, Instruction Manual

Page: 9 / 170

Rev.01 - 06.2021 | LDP1/LDP2 Single and Dual Loop Detector | © 2021 | CARLO GAVAZZI Industri
9
EN
L11 E1 L21
R21 R22 R23
R11 R12 R13
A1 A2 E2
RESE
T
1
2
3
4 5 6 7
8
9
10
SENSITIVITY 1
1
2
3
4 5 6 7
8
9
10
SENSITIVITY 2
LOOP 1
RELAY 1
LOOP 2
RELAY 2
12
3
4
56
78
91
01
11
2
ON
78
CT
S
Loop state LED
LED colour LED constant LED Flashing
Inductance OK -
Inductance too high Inductance too low
Loop is open circuit Loop is short circuit
Relay state LED
LED colour Mode
Relay
deactivated
Relay activated
Presence mode LED OFF LED ON
Pulse mode, 0.1 s LED OFF LED ON for 0.5 s
Pulse mode, 0.5 s LED OFF LED ON for 1.0 s
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
R11 R12 R13
A1 A2 E2
RESE
T
1
2
3
4 5 6 7
8
9
10
SENSITIVITY
RELAY 1
LOOP
RELAY 2
12
3
4
56
78
91
01
11
2
ON
78
CT
S
Power / fault indicator
LED colour LED constant LED Flashing
All OK (ASB OFF)
DIP switch changed, but
changes not in effect
All OK (ASB ON) -
Low signal indication -
Channel crosstalk -
-
Indication of the frequency
channel
Loop state LED
LED colour LED constant LED Flashing
Inductance OK -
Inductance too high Inductance too low
Loop is open circuit Loop is short circuit
Relay state LED
LED colour Mode
Relay
deactivated
Relay activated
Presence mode LED OFF LED ON
Pulse mode, 0.1 s LED OFF LED ON for 0.5 s
Pulse mode, 0.5 s LED OFF LED ON for 1.0 s
Power / fault indicator
LED colour LED constant LED Flashing
All OK (ASB OFF)
DIP switch changed, but
changes not in effect
All OK (ASB ON) -
Low signal indication -
Channel crosstalk -
-
Indication of the frequency
channel
Dual loop (LDD2)