VM1000 Series
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Figure 2-21 Wiring of Digital Output Terminal
2.3 Electro Magnetic Compatibility
2.3.1 Eletromagnetic Interference and Installation Precautions
The electromagnetic interference includes two situations: one is electromagnetic
noise from the surroundings having interference on VFD; the other interference is
the interference to other equipment generating by VFD
.
Precautions：
(1)VFD and other electrical product should be well grounded.
(2)Try not to install the power input and output cables of the AC drive and
weak-current signal cables (such as control cable) in parallel. Install vertically if it
has conditions.
(3)It is recommended to use shield cable in the VFD output power or and the
shielding should be grounded completely.For the extension cable of interfered
equipment, it is suggested to use twisted shield cable and shielding should be well
grounded.
(4)If motor cable is longer than 50m, it requires to install output filter and reactor.
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