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4.18 Option Slot B

Option Slot B Connections – Heater Current Input Module

If the heater current measurement feature is available, connections from the secondary winding of

the current transformer are as illustrated below.

Figure 30. Option Slot B – Heater Current Input Connections

Option Slot B Connections – Digital Input 2 (Full Auxiliary Module)

If option slot B is fitted with the Full Auxiliary input module (see below), a secondary digital input is

also provided. This may be connected to either the voltage free contacts of a switch or relay, or a

TTL compatible voltage.

Figure 31. Option Slot B – Digital Input 2 Connections

Option Slot B Connections –

DIN Full Auxiliary Input Module

If option slot B is fitted with full auxiliary input feature, input connections are as shown.

Figure 32. Option Slot B – Full Auxiliary Input Connections

WARNING:

IF THE FULL AUXILIARY MODULE HAS BEEN FITTED, THE BASIC AUXILIARY INPUT MUST

NOT BE FITTED INTO OPTION SLOT A.

(or Pot Low)

(or Pot Wiper)

(or Pot High)

CT Secondary

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Despatch P1400+ Temperature Controller Manuale Utente Pagina 29