C4000 Gilbarco Protocol Converter; Intrinsically Safe Wiring; Air Detector Cut-Out Switch - Compac C4000 Manual

E W
LECTRICAL IRING
10.2.2.

C4000 Gilbarco Protocol Converter

A Gilbarco interface board (CI143) plus any software version HIA29107 onwards (or
HIU29107 for USA Gilbarco protocol) is required if the C4000 is to connect to a Gilbarco
Consul. The Comms dipswitch settings (See Figure 7 & Figure 9) must be set with switches
1& 3 OFF and switches 2 & 4 ON.
The Gilbarco interface board plugs onto the IS Power supply PCB in the Flameproof box.
The IS Cable (See Appendix A (IS Cable Microprocessor - IS Power Supply)) must be
setup to connect to the Gilbarco interface board. The Comms still connects to the Red &
Black terminals as with the standard Comms.
10.3.

Intrinsically Safe Wiring

The location of the various connectors are shown in Figure 1 on page 1.
10.3.1.

Air Detector Cut-out Switch

The Air detector cut-out switch is required on any Bennett pump pumping diesel or any
Bennett pump pumping any product at more than 55 litres per minute. This switch is a
'normally open' pressure-activated switch, which closes when the pressure of the air venting
from the pumping unit exceeds a preset level. The closing of this switch disables the C4000's
outputs, ending the transaction in progress. The pump can be re-authorised and another
transaction can take place immediately after the pump stops, without the need to de-power
and re-power the electronics.
Figure 10. Connector J12 (Nozzle, Air, Sump, and Flow switches)
The Air cut-out switches are to be connected between the AIRx and GNS pins on the J12
connector (see Figure 10). If there is more than one head controlling a pump (e.g. MPD6),
then the Air detector cut-out switch must be connected to both heads. Ensure that the AIRx
terminals are joined and the GNS terminals are joined. DO NOT connect the GNS terminal
on one head to the AIRx terminal on the other.
Page 40
C4000 S M
ERVICE ANUAL
J12
1 2
NSW3
3 4
GND
5 6
GND
7 8
NSW0
9 10
GND
11 12
GND
13 14
FLOW1
15 16
GND
17 18
GND
19 20
SUMP
21 22
GNS
23 24
GND
25 26
AIR1
27 28
GNS
29 30
GND
C I
OMPAC NDUSTRIES
NSW1
GND
GND
NSW2
GND
GND
FLOW0
GND
GND
AIR2
GNS
GND
AIR0
GNS
GND
L
IMITED
31 May, 2004