Commissioning; Measures Before Commissioning; Overview; Motor Component - Danfoss VLT OneGearDrive Instruction Manual

Commissioning

3 Commissioning

3.1 Measures before Commissioning

3.1.1 Overview

®
If the VLT OneGearDrive has been stored, the measures
detailed in 3.1.2 Motor Component and 3.1.3 Gear Unit
Component must be taken.

3.1.2 Motor Component

•
Insulation measurement
Measure the insulation resistance of the winding
with commercially available measuring apparatus
(e.g., with a megger) between all winding parts
and between the winding and the enclosure.
Measured value Action/State
> 50 megohm No drying necessary, new condition
< 5 megohm Drying advised
approx 50 megohm Lowest permissible threshold
Table 3.1 Insulation Measurement Values

3.1.3 Gear Unit Component

•
Lubricant
The lubricant in the gear unit must be changed if
the storage period exceeds three years or the
temperatures were very harsh throughout a
shorter storage period. For detailed instructions
and lubricant recommendations, see
4.4.3 Lubricant Volume.
•
Shaft seals
Lubricate the hollow shaft seal with grease if the
storage period exceeds two years. When
changing the lubricant, the function of the shaft
seals between the motor and gear unit as well as
on the output shaft must also be checked. The
shaft seals must be replaced if any change in
shape, color, hardness or sealing effect is
detected.
®
VLT OneGearDrive Instruction Manual
3.2 Commissioning
®

MG75C322 - VLT

is a registered Danfoss trademark
•
Remove the protective films.
•
Disconnect the mechanical connection to the
machine being driven as far as possible and
examine the direction of rotation in the no-load
state.
•
Remove feather keys or secure them in such a
way that they cannot be ejected.
•
Ensure that the current draw in the loaded
condition does not exceed the rated current
indicated on the nameplate for any length of
time.
•
Observe the drive unit after first commissioning
for at least one hour for any unusual heat or
noise.
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