Rockwell Automation 1395 DC Drive, 800-1250 Hp, FRN 5.XX-9.30 - Manual (Page 72)

Chapter 4
Installation
4-7
Figure 4.3
1395 High Horsepower Grounding Practices
TE
Discrete
Adapter Board
TE
Analog I/O
DC Tach
Remote
PLC
PLC I/O Link
GND
Next Rack
TB3
Conduit Ground
Insulated Signal Ground “TE”
Power Safety Ground “PE”
GND
L1 L2 L3
Isolation
Transformer
Conduit Ground
Encoder
Encoder shield must not
be grounded at drive
Building steel or
substation ground
Conduit Ground
Building steel or
substation ground
Connect to adjacent building steel
(girder/joist) or a floor ground loop
Connect to clean earth ground
TE
PE
Ground
PE
Encoder
Encoder cable in steel conduit
(Grounded – wiring Class 8)
Encoder Grounding –
Motor Leads Not Grounded
(Wiring Class 3 or 4)
DC Tach
Tach cable in steel conduit
(Grounded – wiring Class 8)
DC Tach Grounding –
Motor leads Not Grounded
(Wiring Class 3 or 4)
Safety Ground to be
Grounded by User
Indicates Chassis Ground
Signal Ground
Power Safety Ground
Node Adapter
Board (if used)
Power
Converter