Electrical Connection - tau MRT Serie Guía Para La Instalación

2. ELECTRICAL CONNECTION

As to the wiring diagram, connect the gearbox motor to the switch, Fig 2.
The conductors colouring mean is the following:
- Cable YELLOW/GREEN: ground connection.
- Cable BLUE: a power supply phase, common to every rotation direction.
- Cable BROWN: a power supply phase for the control motor rotation in one direction (opposite
to that got with the black cable)
- Cable BLACK: a power supply phase for the control motor rotation in one direction (opposite
to that got with the brown cable)
Note: the balancing phase between the brown and the black cable is controlled by a bipolar switch
with a permanent central zero contact (make sure the limit switches are correctly adjusted), or an
automatic return switch (in this case the system stops when the button is released).
Attention:
- Do not connect more than one motor to a single control switch.
- The possible controls centralisation can be done by the appropriate devices, which
are supplied on request.
The tubular motor is provided for intermittent functioning and not for a continuous, more
than 4 min, use.
However The motor, having a thermal protection, will stop if it reaches a high temperature due
to a sequence of several consecutive operations. (more than 10 continuous functioning without
any break). The motor starts again after a time not lower than 10 min. at the end of which the
thermal protection resets it self automatically. But after this resetting, the motor can function at
a reduce rate; the normal functioning will be possible only after a complete motor cooling (about
60 minutes).
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Fig. 2
MRT / MRTS