Installation manual

General Installation Information 1-3
General Grounding
Requirements
Safety Ground - PE
The drive Safety Ground - PE must be connected to system ground.
Ground impedance must conform to the requirements of national and local
industrial safety regulations and/or electrical codes. The integrity of all
ground connections should be periodically checked.
For installations within a cabinet, a single safety ground point or ground bus
bar connected directly to building steel should be used. All circuits
including the AC input ground conductor should be grounded
independently and directly to this point/bar.
Table 1.A Typical Grounding
Shield Termination - SHLD
The Shield terminal provides a grounding point for the motor cable shield.
It must be connected to an earth ground by a separate continuous lead. The
motor cable shield should be connected to this terminal on the drive (drive
end) and the motor frame (motor end). A shield terminating cable gland
may also be used.
When shielded cable is used for control and signal wiring, the shield
should be grounded at the source end only, not at the drive end.
RFI Filter Grounding
Using an optional RFI filter may result in relatively high ground leakage
currents. Therefore, the filter must only be used in installations with
grounded AC supply systems and be permanently installed and solidly
grounded (bonded) to the building power distribution ground. Ensure that
the incoming supply neutral is solidly connected (bonded) to the same
building power distribution ground. Grounding must not rely on flexible
cables and should not include any form of plug or socket that would permit
inadvertent disconnection. Some local codes may require redundant ground
connections. The integrity of all connections should be periodically
checked. Refer to the instructions supplied with the filter.
U (T1)
V (T2)
W (T3)
R (L1)
S (L2)
T (L3)
PE
SHLD