Simpro DUMPMASTER DM0700, Руководство пользователя

Страница: 27 / 60

User Manual // Simpro Dumpmaster®
Original Instructions // English // v119.0 // October 2022 // Page
26
3.5 Electrical System (3-phase mains)
If you do not operate a 3-phase mains machine, please disregard this section.
Dumpmasters powered by 3-phase mains electricity are generally the same as other models,
but use a 3-phase 2-pole electric motor to drive the hydraulic pump. A transformer provides
24VDC current to the control systems. In some regions a VSD is also fitted to provide suitable
current to the motor.
The motor only runs when the RAISE button is pressed; the cradle is lowered by gravity alone.
3.5.1 International conformance
The exact specifications of 3-phase machines differ depending on the standard voltage and
frequency of 3-phase mains power in the intended country of use.
In regions where 3-phase/~400VAC/50Hz power is standard (primarily in Europe, Australasia,
and Asia)
the motor is driven directly by the mains current in ‘delta configuration’. In
locations where different voltages and frequencies are common (primarily in North and
South 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 configuration’.
A list of 3-phase power standards in different countries and territories may be viewed
here:
https://www.worldstandards.eu/three-phase-electric-power/ .
Connecting the Dumpmaster to a power supply for which it is not designed may
damage the motor and other components. Consult an electrician if you are unsure.
3.5.2 Appliance inlet
The Dumpmaster is fitted with an IP66-rated appliance inlet, allowing it to be operated with a
regular 3-phase extension lead. Depending on the phase polarity of the AC power supply,
the power plug may need to be rewired to make the motor turn in the right direction.
3-phase electric motors turn in different directions depending on the polarity of the input
current, so a mismatch will make the motor run backwards. This does not damage the
motor, but prevents the hydraulic system from lifting the cradle. An electrician can
correct this problem by switching any two of the
‘ phase wires ’ in the power plug.
3.5.3 Isolator switch
The Dumpmaster is fitted with an isolator switch on the forward side of the powerpack cover.
This isolates the electrical systems from the power supply. It should be turned OFF if the
machine is to be placed in storage, or if the powerpack cover needs to be removed.
The isolator switch must be turned OFF before the powerpack cover is removed.
3.5.4 Transformer
The Dumpmaster is fitted with a transformer to supply 24VDC current to the control systems.
The input voltage and frequency are specified to suit standard 3-phase mains power in the
intended country of use.
0790050174
0210050002
NZ/AU/UK/EU 0250050123