Precision-digital PD6000 User Manual download pdf (Page 20)

Model PD6000 Analog Input Process Meter Instruction Manual

Voltage

Signal

mA+P-

21354

P+ V+

COM

INPUT SIGNAL

mA+P-

21354

P+ V+

COM

INPUT SIGNAL

3-Wire Voltage

Transducer

Signal

Figure 9. Voltage Input Connections

The meter is capable of accepting any voltage from -10 VDC to +10 VDC.

Modbus RTU Serial Communications

Serial communications connection is made to an RJ45 connector la-

beled M-LINK on Figure 5. Use the PDA1232 for RS-232 interfacing or

the PDA1485 for RS-422/485 interfacing. The same port is used for

interfacing with all expansion modules (e.g. external relays, digital I/O).

Use the PDA1200 meter copy cable for meter-to-meter interfacing for

cloning purposes (i.e. copying settings from one meter to other meters).

Relay Connections

Relay connections are made to two six-terminal connectors labeled

RELAY1 – RELAY4 on Figure 5. Each relay’s C terminal is common

only to the normally open (NO) and normally closed (NC) contacts of the

corresponding relay. The relays’ C terminals should not be confused

with the COM (common) terminal of the INPUT SIGNAL connector.

CNONO NC NC C

RELAY4 RELAY3

4365 21

CNONO NC NC C

RELAY2 RELAY1

4365 21

Figure 10. Relay Connections

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 95 96

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Precision-digital PD6000 User Manual Page 20