Contrex CX-1200 Manual do Utilizador descarregar pdf (Página 40)

Page 38

INPUTS

NOTE: Refer to pages 2-9 and 2-36 before you begin wiring.

Figure 2-39 Analog Input 2: Voltage Input

Figure 2-38 Analog Input 1: Voltage Input

±12V Input

Common

±12V Input

Common

Analog Input 1:

Voltage Input Wiring

(JA, Pins 2, 4, 8)

The Analog Input 1 can be used with either ±12 VDC or

0-20 mA inputs. Figure 2-38 displays the ±12 VDC

option.

For the differential inputs:

Connect JA pin 2 to the positive differential signal

source.

Connect JA pin 4 to the negative differential signal

source.

Connect JA pin 8 to the common of the differential

signal source.

For the non-differential inputs:

Connect JA pin 2 to the signal voltage source.

Connect JA pin 4 and JA pin 8 to the common of the

signal source.

Analog Input 2:

Voltage Input Wiring

(JA, Pins 5, 7, 8)

The Analog Input 2 can be used with either ±12 VDC or

0-20 mA inputs. Figure 2-39 displays the ±12 VDC

option.

For the differential inputs:

Connect JA pin 5 to the positive differential signal

source.

Connect JA pin 7 to the negative differential signal

source.

Connect JA pin 8 to the common of the differential

signal source.

For the non-differential inputs:

Connect JA pin 5 to the signal voltage source.

Connect JA pin 7 and JA pin 8 to the common of the

signal source

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