Rockwell Automation 1336T Wiring and Grounding Guide, (PWM) AC Drives - Manual (Page 140)

140 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014
Index
N
noise
brake 77
common mode 75
contacts 77
enclosure lighting 80
inductive loads 77
lighting 80
mitigating 77
motor brake 77
motor starters 77
motors 77
preventing 77
related grounds 51
relays 77
solenoids 77
switch contacts 77
transient interference 77
O
ozone 74
ozone production 73
P
parasitic inductance 46
pigtail termination 70
power
wire 19 , 21 , 55 , 68 , 71 , 76
power cables, input 19
power distribution 25
Delta/Delta with Grounded Leg 26
Delta/Wye with Grounded Wye 25
high resistance ground 27
TN-S five-wire system 28
ungrounded secondary 27
power distribution schemes 25
power scheme types
fully grounded 52
high resistance ground 52
ungrounded 52
power terminals 71
barrier strip 71
barrier strips 71
cage clamps 71
crimp lugs 71
studs 71
precautions 10
protection
MOV surge 45
R
radiated noise 58
RC networks 78
RC snubber circuit 48
reactor, multiple drives 43
recommended cable design 14
recommended documentation 9
redundant
ground paths 50
reflected wave 73
effects on wire types 73
length restrictions 74
motor protection 74
reflected wave phenomenon 73
reflected wave transient voltage 73
regenerative unit 46
relays, noise 77
remote I/O 24
resistance, ground 27
RFI filter grounding 50
routing 63
S
safety grounding 49
safety grounds
building steel 49
grounding PE or ground 50
safety grounds, grounding 49
secondary, ungrounded 27
serial (RS232/485) 24
shielded cables
grounding 69
splicing 55
shields
cable 16 , 55
termination 69
signal
analog cable 21
terminals 72
wire 21
sinusoidal voltage 73
solenoids, noise 77
spacing
wiring 63 , 64
spacing notes 64
splice shielded cables 55
standard installation 57
stray capacitance 77
suppression, noise
contracts 77
inductive loads 77
motor starters 77
motors 77
relays 77
solenoids 77
suppressor 45
surge protection
MOV 45
surge suppression 45
switch contacts
noise 77