Woodward 9907-252, Инструкция по установке и эксплуатации

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Manual 02035 Load Sharing Module
Woodward 7
General Wiring Requirements
The circled ground symbol identifies the Protective Earth Terminal. This
terminal must be connected directly to protective earth using a
grounding conductor at least as large as those used on terminals 1
through 9. The insulation of the grounding conductor must be of green
and yellow color.
This symbol identifies functional or EMC earth. This terminal is to be
used for cable shield connections only. It is not to be used as a
protective earth terminal.
External wiring connections and shielding requirements for a typical installation
are shown in the plant wiring diagram, Figure 1-4. These wiring connections and
shielding requirements are explained in more detail in this chapter.
To maintain compliance with CE marking requirements, the Low Voltage
Directive requires that the Load Sharing Module must only be connected to Class
III equipment.
Wiring for the Load Sharing Module must be suitable for at least 90 °C (194 °F)
and also be suitable for the maximum installed operating temperature.
The Load Sharing Module must be permanently connected and employ fuses or
circuit breakers in each of the PT lines to limit current to the LSM PT inputs to no
more than 5 A. In addition, a 2 A fast-acting fuse or circuit breaker must be
provided in the 24 Vdc power supply line.
All terminal block screws must be tightened to 0.56 to 0.79 N·m (5.0 to 7.0 lb-in).
To maintain compliance with CE marking requirements, the EMC Directive
requires that all shields be connected to the terminals provided per the plant
wiring diagram, Figure 1-4.
Power Requirements
The Load Sharing Module is powered from a 24 Vdc source. The 24 Vdc source
must be a minimum of 18 Vdc and a maximum of 32 Vdc continuous. If a battery
is used for operating power, an alternator or other battery charging device is
necessary to maintain a stable supply voltage.
To prevent possible serious damage to the Load Sharing Module,
make sure the alternator or other battery charging device is turned
off or disconnected before disconnecting the battery from the unit.
Shielded Wiring
All shielded cable must be twisted conductors with either a foil or braided shield.
Do not attempt to tin (put solder on) the braided shield. All signal lines should be
shielded to prevent picking up stray signals from adjacent equipment. Connect
the shields to the terminals indicated in the plant wiring diagram. Wire exposed
beyond the shield must be as short as possible.