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Chapter 4 Installation and wiring
4-1
Chapter 4 Installation and wiring
4.1 Parameter & Operation data
Please design protection circuit at the external of PLC for entire system to operate safely because an abnormal
output or an malfunction may cause accident when any error of external power or malfunction of PLC module.
(1) It should be installed at the external side of PLC to emergency stop circuit, protection circuit, interlock circuit of
opposition action such as forward /reverse operation and interlock circuit for protecting machine damage such as
upper/lower limit of positioning.
(2) If PLC detects the following error, all operation stops and all output is off.
(Available to hold output according to parameter setting)
(a) When over current protection equipment or over voltage protection operates
(b) When self diagnosis function error such as WDT error in PLC CPU occurs
When error about IO control part that is not detected by PLC CPU, all output is off.
Design Fail Safe circuit at the external of PLC for machine to operate safely. Refer to 4.1.1 Fail Safe circuit.
(1) Because of error of output device, Relay, TR, etc., output may not be normal. About output signal that may cause
the heavy accident, design supervisory circuit to external.
When load current is more than rating or over current by load short flows continuously, danger of heat, fire may occur
so design safety circuit to external such as fuse.
Design for external power supply to be done first after PLC power supply is done. If external power supply is done
first, it may cause accident by misoutput, misoperation.
In case communication error occurs, for operation status of each station, refer to each communication manual.
In case of controlling the PLC while peripheral is connected to CPU module, configure the interlock circuit for system
to operate safely. During operation, in case of executing program change, operation status change, familiarize the
manual and check the safety status. Especially, in case of controlling long distance PLC, user may not response to
error of PLC promptly because of communication error or etc.
Limit how to take action in case of data communication error between PLC CPU and external device adding installing
interlock circuit at the PLC program.
Danger
Содержание XBE-DC08A
Страница 124: ...Main Chapter 1 Configuration and Operation Mode of Programs 1 27 1 Memory block diagram ...
Страница 155: ...Main Chapter 2 CPU Function 2 29 Notice For more details on the monitor refer to the XG5000 manual ...
Страница 504: ...Position Chap 6 Commands 6 61 6 11 Function blocks related to Servo Drive ...
Страница 512: ...Positioning Chapter 7 Program 7 8 manual operation 7 1 4 Parameter and Operation Data Setting 1 Parameter Setting ...
Страница 644: ...Positioning Chapter 8 Functions 8 91 ...
Страница 727: ...Positioning Chapter 9 Positioning Error Information Solutions 9 13 ...
Страница 861: ...Special Chapter 1 Embedded Analog 1 39 5 Select View Variables Comments Variables and comments are both displayed ...
Страница 1206: ...Appendix 2 Dimension App2 1 Appendix 2 Dimension Unit mm 1 CPU Type XEC DN32U 2 Positioning Type XEC DN32UP ...
Страница 1207: ...Appendix 2 Dimension App2 2 2 Analog Type XEC DN32UA ...
Страница 1209: ...Appendix 2 Dimension App2 4 XBE DC08A XBE DC16A XBE TN08A XBE TN16A XBE DR16A XBE RY08A ...
Страница 1210: ...Appendix 2 Dimension App2 5 4 Extension Cnet I F Module XBL C41A XBL C21A ...