GTS Technical Manual
14. March 2014 Edition: V1.00/2014 6-1
Copyright © 2014, Diversey Care
06.10.17 system architecture - 30_45_350E_455E_755E_1255E_V1.10.fm
6.1 System architecture
Remove the power supply/mains before you work on the machine.
6.1.1 Motor circuit
• The motor that is used in electrical TASKI machines is a single
phase AC-motor.
• To generate a rotating magnetic field, that enables a rotation of
the rotor, following conditions have to be given:
• The currents have to be phase shifted.
• A second coil is available and fed with phase shifted cur-
rent.
• This means that the current in the main coil (thicker wires, low
quantity of windings => inductivity marginal) is aligned with the
voltage but the current in the auxiliary coil (thin wires, high
quantity of windings => inductivity higher) is phase shifted,
which ensures the rotation of the rotor.
Picture 1: Phase shifting main and auxiliary coil
• To start and run an AC-motor with single phase we use a
running capacitor and a start capacitor.
• The serial connection of the auxiliary coil and a running
capacitor ensures the required phase shifting.
• To gain a higher motor hinge moment during the start phase, a
start capacitor is connected parallel to the running capacitor.
• The start capacitor will be disconnected by the relay as soon the
motor reaches a certain inductive voltage that switches the relay
off and disconnects the start capacitor from the circuit.
• The switch off point is given by the load that is pulled by the
motor in relation to the main voltage.
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