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Chapter 3 – Installation & Wiring
3-10
3.3.4 RS485/Modbus RTU communication circuit wiring
Use for Modbus-RTU communication terminals
C+
for signal High and
C-
for signal Low. Set the
J3
dip
switch to ON (Upward) position to connect 120 termination resistor. Connect cable shield to
CM
or
Ground
terminals.
Item
Specification
Transmission type
Bus method, Multi drop Link System
Applicable VFD
P Series
Number of VFDs
Max. 31
Transmission distance
4000 feet (1200m) Max.
Up to 2300 feet (700m) recommended
Recommended cable
Shielded Cable Twisted-pair 0.75mm
2
(18AWG)
Item
Specification
Installation
C+, C- & CM terminals on the control terminal block
Power supply
Isolated from VFD power supply
C+
CM
C-
M6
24
M7
M8
M1
CM
M2
M3
24
M4
M5
J3
ON
OFF
Summary of Contents for CI-007-P2
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Page 110: ...Chapter 6 Parameter Description 7 4 PID control with Pipe Broken function diagram...
Page 111: ...Chapter 6 Parameter Description 7 4 7 5 PID control with Pre PID function diagram...
Page 112: ...Chapter 6 Parameter Description 7 5 7 6 PID Control Setting Notes...
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