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Chapter 6 Troubleshooting
6-9
Input signal
doesn’t turn off.
Sneak current due to the use of two different power
supplies.
E1 > E2, sneaked.
Use only one power supply.
Connect a sneak current prevention diode.
6.4.2 Output circuit and corrective actions
The following describes possible troubles with output circuits, as well as their corrective actions.
Condition
Cause
Corrective Action
When the output
is off, excessive
voltage is applie
d to the load.
Load is half-wave rectified inside (in some cases, it
is true of a solenoid)
When the polarity of the power supply is as shown in
①, C is charged. W hen the polarity is as shown in ②,
the voltage charged in C plus the line voltage are
applied across D. Max. voltage is approx. 2√2.
*) If a resistor is used in this way, it does not pose a
problem to the output element. But it may make the
performance of the diode (D), which is built in the
load, drop to cause problems.
Connect registers of tens to hundreds KΩ across the
load in parallel.
The load doesn’t
turn off.
Leakage current by surge absorbing circuit, which is
connected to output element in parallel.
Connect C and R across the load, which are of
registers of tens KΩ. When the wiring distance from the
output module to the load is long, there may be a
leakage current due to the line capacity.
E
DC input
L
E
E1
DC input
L
E
R
Load
R
Load
C
C
R
Load
Leakage current
Output
~
C
R
←
↑
Load
D
~
C
R
Load
R
D
~
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 ...