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2.6
Connections
2.6.1
Fig. 6
2.6.2
2.6.3
2.6.4
2.6.5
2.6.6
Series 5000 - Manual 5010 / 5020
General
A ten core shielded / screened cable is required for connections between the
Controller and Sensor Head. The remainder of the terminals located in the
controller provide various supply, output, and signal functions.
AIR
_
Detectors
Sen
+
4 3 1 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
1 2 3 4 5 6 7 8 9 10 11
SENSOR HEAD
Sensor Head Cable - Terminals 1 to 11
The Sensor is connected to the Controller by means of a ten core shielded/
screened cable. This cable may be provided by Patol Ltd., as part of a "system
package", and may be of a five pair form. The screen (earth) of the cable should
be tailed and connected as show in the above figure.
Earth continuity at Controller & Sensor Head terminals (#1) must be maintained,
and a system / site earth implemented at the Controller terminal #31 as is most
appropriate. This is in effect an instrumentation earth - not a safety earth.
Safety earth arrangements to the Sensor must be made as appropriate to local /
national standards.
Auxiliary Fault Signal - Terminals 12 &13
The controller incorporates an auxiliary FAULT input circuit. This may be
employed, for example, to integrate a failure / warning signal from an associated
local 24 Vdc power supply / battery charger. The circuit connection is both open &
short circuit fault monitored. The above diagram shows how both opening and
closing reporting contacts should be configured. If the circuit is not utilised then
the terminals should have a 10k resistor connected to blank off the indication /
warning.
Relay Contacts - Terminals 14 to 24
The controller provides three sets of repeat signal contacts. The above diagram
shows the contacts in their DE-ENERGISED condition. Alarm & Trip contacts are
normally de-energised; the fault contact is normally energised. The operation of
Alarm & Trip contacts may be programmed by means of the DIL switch.
Remote Reset Signal - Terminals 25 & 26
This input may be utilised for the connection of a local external push-button, or
for signalling from remote equipment.
Supply Connections - Terminals 27 to 31
Two terminals are provided for each supply pole.
It should be noted that the recommended EARTH connections are related to RFI
considerations and must not be taken as being compliant with any site SAFETY
EARTH requirements.
CONTROLLER
TEST
Norm De-En Norm De-En
TRIP
ALARM
10K
AUX. FAULT
I/P CONTACT
EXTERNAL /
REMOTE
10K
RESET
PUSH BUTTON
D1125 - Issue 2 - 1 December 2009
Patol Limited
Norm En
_
+
FAULT
+ _
24 Vdc
SUPPLY
Page 8 of 15
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