SF01U 15
Filter: The input to the drive (or group of drives) must include a filter to reduce the electrical
noise reflected back to the AC Line. The SCM can be installed to meet the industrial standards
set by the EU, EN 61800-3 for conducted emissions and EN 55011 for radiated emissions to
class A compliance when installed with an appropriately installed external line filter.
EMC
Compliance with EN 61800-3/A11
Installation: Shielded cable must be used for all control and power cables
and exposed wiring must be kept as short as possible.
A
Screen clamps
B
Control cable
C
Low-capacitance motor cable
(core/core < 75 pF/m, core/screen < 150 pF/m)
D
Electrically conductive mounting plate
E
Filter
8.0 POWER WIRING
DANGER!
Hazard of electrical shock! Capacitors retain charge after power is removed.
Disconnect incoming power and wait until the voltage between terminals B+
and B- is 0 VDC before servicing the drive.
Note drive input and output current ratings and check applicable electrical codes for required
wire type and size, grounding requirements, over-current protection, and incoming power
disconnect, before wiring the drive. Size conservatively to minimize voltage drop.
Refer to Section 9.0 - SCF POWER WIRING DIAGRAM for information on torque and wire
stripping requirements for power wiring.
Input fusing and a power disconnect switch or contactor MUST be wired in series with terminals
L1, L2, and L3 for three phase input models. For 208/240 Vac single phase input models, use
terminals L1 and L2. This disconnect must be used to power down the drive when servicing,
or when the drive is not to be operated for a long period of time, but should not be used to
start and stop the motor.
Repetitive cycling of a disconnect or input contactor (more than once every two minutes)
may cause damage to the drive.
8.1 WIRING FOR SINGLE PHASE OR THREE PHASE INPUT
If the drive is rated for single and three phase input (SF200Y models), wire to terminals L1 and
L2 for single phase input, or wire to terminals L1, L2, and L3 for three phase input.
If the drive is rated for three phase input, wire the input to terminals L1, L2, and L3.All three
power output wires, from terminals T1, T2, and T3 to the motor, must be kept tightly bundled
and run in a separate conduit away from all other power and control wiring.
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