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xxiii
Additional Precautions According to UL 1604
5
■
Installation and Wiring
• Use the following to wire external I/O devices to the NE1A-series Control-
ler.
• Disconnect the NE1A-series Controller from the power supply before
starting wiring. Devices connected to the NE1A-series Controller may
operate unexpectedly.
• Properly apply the specified voltage to the NE1A-series Controller inputs.
Applying an inappropriate DC voltage or any AC voltage will cause the
NE1A-series Control-ler to fail.
• Be sure to separate the communications cables and I/O cables from near
high-voltage/high-current lines.
• Be cautious not to get your fingers caught when attaching connectors to
the plugs on the NE1A-series Controller.
• Tighten the DeviceNet connector screws correctly (0.25 to 0.3 N·m).
• Incorrect wiring may lead to loss of safety functions. Wire conductors cor-
rectly and verify the operation of the NE1A-series Controller before using
the system in which the NE1A-series Controller is incorporated.
• After wiring is completed, be sure to remove label for wire clipping preven-
tion on the NE1A-series Controller to enable heat to escape or proper
cooling.
■
Power Supply Selection
Use a DC power supply satisfying the following requirements.
• The secondary circuits of the DC power supply must be isolated from the
primary circuit by double insulation or reinforced insulation.
• The DC power supply must satisfy the requirements for class 2 circuits or
limited voltage/current circuits given in UL 508.
• The output hold time must be 20 ms or longer.
■
Periodic Inspections and Maintenance
• Disconnect the NE1A-series Controller from the power supply before
replacing the Controller. Devices connected to the NE1A-series Controller
may operate unex-pectedly.
• Do not disassemble, repair, or modify the NE1A-series Controller. Doing
so may lead to loss of safety functions.
■
Disposal
• Be cautions not to injure yourself when dismantling the NE1A-series Con-
troller.
5
Additional Precautions According to UL 1604
The NE1A-series Controller is suitable for use in Class I, Div. 2, Group A, B,
C, D or Non-Hazardous Location Only.
WARNING - Explosion Hazard - Substitution of Components May Impair Suit-
ability For Class I, Div. 2.
Solid wire
0.2 to 2.5 mm
2
(AWG 24 to AWG 12)
Stranded (flexi-
ble) wire
0.34 to 1.5 mm
2
(AWG 22 to AWG 16)
Stranded wires should be prepared by attaching insulated bar
terminals (DIN 46228-4 standard compatible) to the ends before
connecting them.
Summary of Contents for NE1A-SCPU01 - 07-2009
Page 3: ...iv...
Page 9: ...x TABLE OF CONTENTS...
Page 11: ...xii...
Page 15: ...xvi...
Page 70: ...35 Installation Section 3 1 Top Top Bottom Bottom...
Page 72: ...37 Installation Section 3 1 3 1 3 Dimensions and Weight Dimensions NE1A SCPU01 V1...
Page 85: ...50 Wiring Section 3 2...
Page 123: ...88 Explicit Message Communications Section 4 7...
Page 141: ...106 Safety Outputs Section 5 4...
Page 257: ...222 Connection Status Tables Section 10 8...
Page 261: ...226 NE1A series Controller Replacement Section 11 2...
Page 264: ...229 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Page 266: ...231 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 267: ...232 Appendix A Local Output Setting Example...
Page 269: ...234 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 270: ...235 Appendix A Local Output Setting Example...
Page 273: ...238 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Page 275: ...240 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 276: ...241 Appendix A Local Output Setting Example...
Page 289: ...254...
Page 293: ...258 Index...