3. Wiring diagrams
Single loop (LDD1)
L11
Loop
L12
Loop
E1
Earth
R21
Relay 2 Normally Open (NO)
R22
Relay 2 Normally Closed (NC)
R23
Relay 2 Common (COM)
R11
Relay 1 Normally Open (NO)
R12
Relay 1 Normally Closed (NC)
R13
Relay 1 Common (COM)
A1
Supply
A2
Supply
E2
Not connected
Dual loop (LDD2)
L11
Loop 1
E1
Loop 1, 2, Earth
L21
Loop 2
R21
Relay 2 Normally Open (NO)
R22
Relay 2 Normally Closed (NC)
R23
Relay 2 Common (COM)
R11
Relay 1 Normally Open (NO)
R12
Relay 1 Normally Closed (NC)
R13
Relay 1 Common (COM)
A1
Supply
A2
Supply
E2
Not connected
L11 L12 E1
R21 R22 R23
5 6
LOOP
4
7
3
8
RELAY 1
9
2
1
10
RELAY 2
SENSITIVITY
R11 R12 R13
A1 A2 E2
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
2
9
1
10
RELAY 1
SENSITIVITY 1
R11 R12 R13
A1 A2 E2
Rev.00 - 03.2019 | LDD1/LDD2 Single and Dual Loop Detector | © 2019 | CARLO GAVAZZI Industri
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