YASKAWA MP3300iec

78 YASKAWA America, Inc. MP3300iec Hardware Manual YAI-SIA-IEC-7
27 Cable Shielding, Segregation and Noise Immunity
27 Cable Shielding, Segregation and Noise Immunity
Connector Case
Terminal Block
Shields tied
back at device
PROPER
Shield tied back at
terminal block.
b)
SMC 3010
Connector Case
Terminal Block
PROPER
Shield connected across
terminal block.
Shields tied
back at device
a)
PROPER
Shields of field
cables grounded at
one point
Proper
Connector
Case
Terminal Block
Shields tied
back at device
b)
Connector Case
Terminal Block
WRONG
Shield grounded at
more than one point.
Shields tied
back at device
a)
WRONG
Shields of field
cables ungrounded
Wrong