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119
Wiring CP1H CPU Units
Section 3-4
3-4-1
Wiring Power Supply and Ground Lines
CPU Units with AC Power Supply
Wiring the AC Power Supply and Ground Lines
• Wire a separate circuit for the power supply circuit so that there is no volt-
age drop from the inrush current that flows when other equipment is
turned ON.
• When several CP1H PLCs are being used, it is recommended to wire the
PLCs on separate circuits to prevent a voltage drop from the inrush cur-
rent or incorrect operation of the circuit breaker.
• Use twisted-pair power supply cables to prevent noise from the power
supply lines. Adding a 1:1 isolating transformer reduces electrical noise
even further.
• Consider the possibility of voltage drops and the allowable current, and
always use thick power lines.
• Use round crimp terminals for AC power supply wiring.
• AC Power Supply
Provide a power supply of 100 to 240 VAC.
• Use a power supply within the following voltage fluctuation range.
Note
(1) Before connecting the power supply, make sure that the CPU Unit re-
quires an AC power supply and not a DC power supply. The CPU Unit's
internal circuitry will be damaged if AC power is mistakenly supplied to a
CPU Unit that requires a DC power supply.
(2) The power supply input terminals are at the top of the CPU Unit; the ter-
minals at the bottom of the CPU Unit output 24-VDC power for external
devices. The CPU Unit's internal circuitry will be damaged if AC power is
mistakenly supplied to a CPU Unit's power supply output terminals.
!Caution
Tighten the terminal block screws for the AC power supply to the torque of
0.5 N·m. Loose screws may result in fire or malfunction.
• Always ground the ground terminal to 100
Ω
or less to protect against
electric shock and incorrect operation from electrical noise.
• If one phase of the power supply is grounded, connect the grounded
phase to the L2/N terminal.
MCCB
S
R
L1
L2/N COM
01
03
05
07
09
11
01
03
05 07
09
11
00
02
04
06
08
10
00
02
04
06
08
10
100 to 240 VAC at 50/60 Hz
Upper terminal block
Ground (100
Ω
or less)
GR: Protective ground terminal
LG: Functional ground terminal
Power supply voltage
Allowable voltage fluctuation range
100 to 240 VAC
85 to 264 VAC
6.2 mm max.
Summary of Contents for Sysmac CP1H
Page 2: ......
Page 3: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised October 2014...
Page 4: ...iv...
Page 10: ...x...
Page 18: ...xviii...
Page 22: ...xxii...
Page 34: ...xxxiv Conformance to EC Directives 6...
Page 76: ...42 Function Blocks Section 1 5...
Page 176: ...142 CP series Expansion I O Unit Wiring Section 3 6...
Page 372: ...338 Analog I O XA CPU Units Section 5 5...
Page 578: ...544 Trouble Shooting Section 8 7...
Page 622: ...588 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Page 668: ...634 Standard Models Appendix A...
Page 744: ...710 Auxiliary Area Allocations by Address Appendix D...
Page 771: ...737 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 772: ...738 Connections to Serial Communications Option Boards Appendix F...
Page 800: ...766 Specifications for External Power Supply Expansion Appendix H...
Page 806: ...772 Index W Work Area 165 work bits 165 work words 165 write protection 379...
Page 808: ...774 Revision History...
Page 809: ......