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

Commissioning

5 Commissioning

5.1 Measures before Commissioning

5.1.1 Overview

If the OneGearDrive has been stored, take the measures
detailed in chapter 5.1.2 Motor Component and
chapter 5.1.3 Gear Unit Component.

5.1.2 Motor Component

Insulation measurement
Measure the insulation resistance of the winding with a
commercially available measuring tool
(for example, Megger) between all winding parts and
between the winding and the enclosure.
Measured value Action/state
No drying necessary, new condition
>50 MΩ
Drying advised
<5 MΩ
Lowest permissible threshold
approximately 50 MΩ
Table 5.1 Insulation Measurement Values

5.1.3 Gear Unit Component

•
Oil
Change the oil in the gear unit if the storage
period exceeds five years or the temperatures
were harsh throughout a shorter storage period.
For detailed instructions and oil recommen-
dations, see chapter 6.4.3 Oil Volume.
•
Shaft seals
Lubricate the hollow shaft seal with grease if the
storage period exceeds two years. When
changing the oil, 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.
MG75C422
Instruction Manual

5.2 Commissioning Procedure

1.
2.
3.
4.
5.
Danfoss A/S © 08/2014 All rights reserved.
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 the 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.
After first commissioning, observe the
OneGearDrive for at least hour hour to detect any
unusual heat or noise.
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