Installation Guidelines; What This Chapter Contains; Mechanical Installation; Installation Environment - Kruger Ecowatt K320 Series Operation Manual

Ecowatt Drive K320 series
®

4.1 What this chapter contains

This chapter introduces the mechanical and electrical installations of the VFD.
Only trained and qualified professionals are allowed to carry out the

operations mentioned in this chapter. Please carry out operations
according to instructions presented in "Safety precautions". Ignoring
these safety precautions may lead to physical injury or death, or
equipment damage.
Ensure the VFD power is disconnected before installation. If the VFD has

been powered on, disconnect the VFD and wait for at least the time
designated on the VFD, and ensure the POWER indicator is off. Users are
recommended to use a multimeter to check and ensure the VFD DC bus
voltage is below 36V.
Installation must be designed and done according to applicable local laws

and regulations. Kruger does not assume any liability whatsoever for any
installation which breaches local laws and regulations. If
recommendations given by Kruger are not followed, the VFD may
experience problems that the warranty does not cover.

4.2 Mechanical installation

Installation environment

4.2.1
Installation environment is essential for the VFD to operate at its best in the long run. The
installation environment of the VFD should meet the following requirements.
Environment
Installation
Indoors
site




Ambient
temperature



4 Installation guidelines

-10–+50°C;
When the ambient temperature exceeds 40°C, derate 1% for every
additional 1°C;
It is not recommended to use the VFD when the ambient temperature
is above 50°C;
In order to improve reliability, do not use the VFD in cases where the
temperature changes rapidly;
When the VFD is used in a closed space e.g. control cabinet, use
cooling fan or air conditioner to prevent internal temperature from
exceeding the temperature required;
When the temperature is too low, if restart an VFD which has been
idled for a long time, it is required to install external heating device
before use to eliminate the freeze inside the VFD, failing to do so may
cause damage to the VFD.
Condition
-15-
Installation guidelines