Simpro Dumpmaster, Руководство пользователя

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User Manual | Simpro Dumpmaster®
Original Instructions | English | v59.0 | December 2019 | Page
34
5.5 Electrical System (3-phase mains)
If you do not operate a 3-phase mains machine, please disregard this section.
The 3-phase mains specification is recommended for high-intensity applications.
Machines powered by 3-phase mains electricity are generally the same as other models, but
are fitted with a 3-phase 2-pole electric motor driving the hydraulic pump. The control
voltage is 24VDC. In some countries an electronic VSD is also fitted in order to provide
suitable current to the motor.
The motor only runs when the RAISE button is pressed; the cradle is lowered by gravity alone.
5.5.1 Localisation
The exact specifications of 3-phase machines differ depending on the standard voltage and
frequency of 3-phase mains power in the country for which the machine was designed.
In locations where 3-phase/~400VAC/50Hz power is standard (AU, NZ, UK, EU, most of Asia)
the motor is driven directly by the mains current in
‘delta configuration’ . In locations where
different voltages and frequencies are common (USA, Canada, South and Central America)
an electronic Variable Speed Drive (VSD) is fitted, which modulates the local mains supply
and outputs 3-phase/400VAC/50Hz current to the motor in
‘ star co nfiguration’ .
A list of 3-phase power standards used in different countries and territories may be viewed at
this web address:
https://www.worldstandards.eu/three-phase-electric-power/ .
Connecting the machine to a power supply for which it was not designed may cause
serious damage. Consult an electrician if you are unsure.
5.5.2 Appliance socket
3-phase machines are fitted with an IP66-rated appliance socket, allowing them to be
operated with a 3-phase extension lead. Depending on the power available in your location,
the plug may need to be rewired by an electrician for the machine to operate correctly.
If the phase wires in the wall socket or extension lead are configured incorrectly, the 3-
phase motor may turn in the reverse direction. Although this does not damage the
machine, the cradle will not lift. To change the motor direction, swap over any two of the
phase wires in the power plug.
5.5.3 Lockout switch
3-phase machines are fitted with a lockout switch on the forward side of the powerpack
cover. This isolates the electrical systems from the power supply and should be turned OFF if
the machine is to be placed in storage, or if the powerpack cover needs to be removed.
The lockout switch must be turned OFF before removing the powerpack cover.
5.5.4 Transformer
3-phase machines are fitted with a transformer which outputs 24VDC current to the control
systems. The transformer input voltage and frequency depend on the standard 3-phase
mains power in the country for which the machine was designed.