WITTUR WSG-SF Series, Руководство по эксплуатации

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Subject to changes without notice ! Änderungen vorbehalten !
Gearless Lift Machine
WSG-SF
Operating Instructions
EN
Code: GM.8.004284.EN
Date: 28. Jan 2020
Version: 0.16
Page: 9
5.2. Permissible ambient conditions
•
Ambient temperature: -5°C to +40°C
•
Air humidity: max. relative humidity: 85% at 20°C (no moisture condensation)
•
Install the machine so that ventilation is not obstruct , ed, i.e. sufficient heat dissipation by convection and radiation
must be ensured.
Deviating ambient conditions
At higher temperatures or altitudes, the overload capability of the motors is reduced. In the case of a deviating altitude
and/or temperature, the reduction factors k shown in the following diagrams must be used.
30 40 50 60
0,6
0,7
0,8
0,9
1,0
t
A
[°C]
k ϑ
0 1000 2000 3000 4000
0,6
0,7
0,8
0,9
1,0
h [m]
k a
M
permiss
= M
dN
* k
ϑ
* k
a
bzw. P
permiss
= P
dN
* k
ϑ
* k
a
5.3. Motor design
5.3.1. Insulation system
• All insulation materials used corresponds to the thermal class 155(F)..
• The insulation system of the motors is designed such that they can be connected to a inverter with a maximum DC
link voltage U
link max
up to max. 700 V DC.
Information
f
U
link max
is the maximum value of the DC link voltage which is only transient and approxi mately equivalent to the
inception voltage of the braking chopper or of the energy recovery unit.
NOTICE
f
The maximum permissible rate of voltage rise (dU/dt) at the motor terminals is 4 kV/µs. The overvoltage at the
motor terminals must not exceed 1.56 kV. It may be necessary to use motor current filters or reactors to achieve
these values.