9.5. EMC Filter Disconnect
Drives with an EMC filter have an inherently higher leakage current to Ground (Earth).
For applications where tripping occurs the EMC filter can be disconnected (on IP20 units only)
by completely removing the EMC screw on the side of the product.
Remove the screw as indicated right.
The Optidrive product range has input supply voltage surge suppression components fitted
to protect the drive from line voltage transients, typically originating from lightning strikes or
switching of high power equipment on the same supply.
When carrying out a HiPot (Flash) test on an installation in which the drive is built, the
voltage surge suppression components may cause the test to fail. To accommodate this
type of system HiPot test, the voltage surge suppression components can be disconnected by
removing the VAR screw After completing the HiPot test, the screw should be replaced and
the HiPot test repeated. The test should then fail, indicating that the voltage surge suppression
components are once again in circuit.
9
Technical Data
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