84
Wiring CP1L-EL/EM CPU Units
Section 3-4
Note
(1) Never apply a voltage that exceeds the input voltage for Input Units or the
maximum switching capacity for Output Units.
(2) When the power supply has positive and negative terminals, always wire
them correctly.
(3) When required by EC Low Voltage Directive, use reinforced insulation or
double insulation on the DC power supply connected to DC-power-supply
CPU Units and I/O.
For the DC power supply connected to a DC-power-supply CPU Unit, use
a power supply with a minimum output holding time of 10 ms.
(4) Do not pull on the cables or bend the cables beyond their natural limit. Do-
ing either of these may break the cables.
Connecting I/O
Devices
Use the following information for reference when selecting or connecting input
devices.
DC Input Devices
Connectable DC Input Devices (for DC Output Models)
• The circuit below should not be used for I/O devices with a voltage output.
IN
COM
CP1L-EL/EM
+
+
IN
CP1L-EL/EM
5 mA/
7 mA
+
COM
+
IN
COM
CP1L-EL/EM
+
CP1L-EL/EM
COM
IN
IN
COM
CP1L-EL/EM
0 V
+
IN
COM
CP1L-EL/EM
+
Contact output
Two-wire DC output
Sensor
power supply
NPN open-collector output
Sensor
power supply
Output
NPN current output
Current
regulator
Output
Sensor
power supply
PNP current output
Output
Sensor
power supply
Voltage output
Output
Sensor
power supply
0 V
5 mA/
7 mA
0 V
5 mA/
7 mA
0 V
+
+
+
IN
CP1L-EL/EM
0 V
+
COM
Output
Sensor
power supply
Summary of Contents for CP1L-EL20DR-D
Page 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Page 4: ...iv...
Page 10: ...x...
Page 22: ...xxii...
Page 34: ...xxxiv Software Licenses and Copyrights 7...
Page 192: ...158 Trial Operation and Debugging Section 5 3...
Page 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Page 666: ...632 Trouble Shooting Section 11 7...
Page 696: ...662 Standard Models Appendix A...
Page 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Page 836: ...802 PLC Setup Appendix G...
Page 838: ...804 TCP Status Transitions Appendix H...
Page 840: ...806 Ethernet Network Parameters Appendix I...
Page 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Page 844: ...810 Ethernet Specifications Appendix K...
Page 851: ...Index 817 work words 118 write protection 447...
Page 852: ...818 Index...
Page 854: ...820 Revision History...
Page 855: ......