Motor Controllers AC Variable Frequency Drives Type VariFlex
3
RVLF
EMC lter may be disconnected:
Inverter drives with built-in EMC lter are not suitable for connection to certain type of supply
systems, such as listed below; in these cases the RFI lter can be disabled.
In all such cases consult your local electrical standards requirements.
IT type supply systems (ungrounded) & certain supply systems for medical equipment.
For ungrounded supply systems if the lter is not disconnected the supply system becomes
connected to earth through the Y capacitors on the lter circuit. This could result in danger and
damage to the drive.
Disconnection steps:
1. Remove EMC lter protection cover by screwdriver.
2. Remove EMC line by pliers.
Note: Disconnecting the EMC lter link will disable the lter function, please consult your local
EMC standards requirement.
Warning:
Inverter drives with built-in EMC lter are not suitable for connection to certain type of supply
connections, such as listed below, in these cases the RFI lter can be disabled. In all such
cases consult your local electrical standards requirements.
IT type supply systems (ungrounded), corner grounded type TN systems cetain supply system
for medical equipment.
For european type supply systems. The following link is very useful, please see section 3.8
mains type.
3.8. Filter Disconnection
36 Specications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 13/12/2017