E2S D1xC1X05RDC024-D, Instruction Manual

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European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: +44 (0)208 743 8880
Document No. D190-00-351-IS Issue 1 21-03-2022 Sheet 6 of 6
Config. Voltage Configuration Description Features Product
Option
Identifier
1a/5a DC Single Stage Configuration
•
Line monitoring
•
Positive Switching
1
1b/5b DC Two Stage Configuration
•
Common Negative
•
Positive Switching
1
1c/5c DC Three/Four Stage Configuration
•
Common Negative
•
Positive Switching
1
2/6 DC Three/Four Stages. Voltage Free 2nd, 3rd &
4th Stage Activation Configuration
•
Common Positive
•
Customer Set H1 & H2 to Negative
Switching
1
3/7 DC Two Stage Configuration
•
Independent Stage Input
•
Reverse Polarity Stage Monitoring
1
4/8 DC Two Stage Configuration
•
Line Stage Monitoring (Use suitable
monitoring relays/ modules)
•
Not to be used in reverse polarity
monitoring
Y
1a/2a AC Single Stage Configuration
•
1
1b/2b AC Three/Four Stage Configuration 1
Table 3: Summary of Wiring Options. See Document D190-06-301 for DC Schematic Diagrams; D190-06-305 for AC Schematic
Diagrams.
9) End of Line Monitoring (DC Units)
9.1 Standard DC End Of Line Monitoring
All DC units have a blocking diode fitted in their supply input lines. An
end of line monitoring diode or an end of line monitoring resistor can
be connected across the +ve and
–ve terminals in the flameproof
chamber. If an end of line resistor is used it must have a minimum
resistance value of 3k3 ohms and a minimum wattage of 0.5W or a
minimum resistance value of 500 ohms and a minimum wattage of 2W.
The resistor must be connected directly across the +ve and -ve
terminals as shown in the following drawing. The resistor leads should
be kept as short as possible. See D190-06-001 for details.
Figure 11: End of Line Resistor placement.
.
10) Maintenance, Overhaul and Repair
Maintenance, repair and overhaul of the equipment should only be
carried out by suitably qualified personnel in accordance with the
current relevant standards.
Units must not be opened while an explosive atmosphere is present.
If opening the unit during maintenance operations, a clean
environment must be maintained and any dust layer removed prior to
opening the unit.
Potential electrostatic charging hazard
– Clean only with a damp cloth