Wachendorff LD4A05P0 Current-/voltage display LD4A05P0 LD4A05P0 Scheda Tecnica

CAUTION: Analog common is NOT isolated from user input 

common. In order to preserve the safety of the meter application, 
the DC common must be suitably isolated from hazardous live 
earth referenced voltage; or input common must be at protective 
earth ground potential. If not, hazardous voltage may be present 
at the User Input and Input Common terminals. Appropriate 
considerations must then be given to the potential of the input 
common with respect to earth ground. Always connect the 
analog signal common to terminal 2.

The User Input is located: LD2 - left side, LD4 - right side

Terminal 5: User Input

Terminal 6: User Comm

The setpoint relays use a six position terminal block (TBB) located inside the 

(right side). 

Terminal 1: NC 1

Terminal 2: NO 2

Terminal 3: Relay 1 Common

Terminal 4: NC 1

Terminal 5: NO 2

Terminal 6: Relay 2 Common

USER

5

USER COMM

6

TBC

USER

USER COMM

6

5

TBC

+

-

1 N.C. 1

COMM 1

3

2 N.O. 1

TBB

4

5

6

N.C. 2

N.O. 2

COMM 2

USER/EXC. COMMON

USER INPUT

VOLT INPUT

INPUT COMMON

CURRENT INPUT

+24 VDC EXC.

TBC

6

2

4

5

3

1

200 MV/2 V
200 µA
2 MA

20 MA
200 MA

20 V/200 V
10 V

Terminal 3: +ADC

Terminal 2: -ADC

Terminal 1: +VDC

Terminal 2: -VDC

Terminal 4: +EXC
Terminal 3: +ADC

1

2

+

-

200 VDC MAX.

VOL

T

ANALOG COMM

Terminal 3: +ADC (signal)
Terminal 2: -ADC (common)
Terminal 4: +EXC

Terminal 1: +VDC (signal)
Terminal 2: -VDC (common)
Terminal 4: +EXC

Load

200 MA DC MAX.

ANALOG COMM

CURRENT

2

+

-

3

3 WIRE TRANSMITTER

VOL

T

1

+ EXC.

ANALOG COMM

I

out

V

out

2

COMM

3

4

CURRENT

TRANSMITTER

-

+

+ EXC.

CURRENT

3

2 WIRE

4

Before connecting signal wires, the Input Range Jumper should be verified 

for proper position.