BONFIGLIOLI VF 130, Инструкция по установке, эксплуатации и обслуживанию

Страница: 55 / 68

53 / 64
IOM Manual VF-W_ATEXgb - Translation of original instructions in Italian - Rev 03_0 - 30/09/16
IMPORTANT:
The maximum surface temperature is reached after 3 hours operation at full load. Temperature
measured in this way must not differ (ΔT) from ambient temperature by more than the following
values:
If the temperature differential exceeds this value, stop the gearbox at once and contact the
manufacturer’s technical assistance service.
• If the temperature differential lies within the above value, wait for the gearbox to cool down and then
install the heat sensor included in the supply at the point of maximum temperature.
Example:
• Check that the gearbox functions normally (no unusual vibrations and/or noise).
(tab 6)
ΔT [K]
VF 44, VF 49 75
W 63 ... W 86 75
W 110 90
●
Provided all the above checks have been completed positively, and provided all the instructions
in this manual have been strictly observed, an electric motor with ATEX rating equal to or higher
than that of the gearbox may be installed to form a gearmotor that complies with the provisions
of Directive 2014/34/EU.
●
If, on the other hand, the motor and gearbox have been coupled in a way other than that prescribed
in this manual, or if one or more of the instructions provided in this manual has been ignored, the
user must perform a risk assessment specific to the motor-gearbox coupling.
●
Risk assessment is mandatory if the motor is to be powered by an inverter. Only if this is done
and self-certification issued by the assembler will the complete assembly in which the gearbox is
installed conform to the requirements of Directive 2014/34/EU. The inverter control system must
not allow the motor to exceed the gearbox maximum input speed (n
1
=1500 min
-1
) or to generate
overloads under any circumstances.