1-9
SIMATIC TD 200 Operator Interface
C79000-G7076-C272-01
1.4
Connecting a Power Cable
The TD 200 receives power either from the S7-200 CPU or from an external
plug-in power supply unit.
If you are using the TD 200 with a network of S7-200 CPUs, refer to Appendix B.
Supplying Power from the S7-200 CPU
Figure 1-8 shows the TD 200 receiving its power from the CPU through the
TD/CPU cable. Use this type of power supply when the distance between the
TD 200 and the S7-200 CPU is less than 2.5 m (8.2 ft.), the length of the TD/CPU
cable.
Supplying Power from an External Power Supply
Figure 1-9 shows the TD 200 receiving its power from an external 24 VDC power
supply. Use this type of power supply when the distance between the TD 200 and
the S7-200 CPU is greater than 2.5 m (8.2 ft.). The TD 200 requires 120 mA at
24 VDC to operate.
Use PROFIBUS components for the network connection if you choose to connect
the TD 200 to the CPU with a longer cable (
2.5 m/8.2 ft.). See the SINEC IK10
Catalog.
!
Caution
Do not supply power to the TD 200 on both the communications connector and
the external power connector. If you do so, the TD 200 may draw power from both
the S7-200 CPU and the external power connector.
Supplying power to the TD 200 on both the communications connector and the
external power connector may cause overheating of the S7-200 CPU. This may
cause damage to your CPU.
Ensure that your communications cable does not supply power to the TD 200
when an external power supply is used. See “Making a Cable That Does Not
Supply Power to the TD 200” on page B-4 for more information.
TD 200
To CPU
+24 VDC
OV
SIEMENS
TD 200
Figure 1-9 Supplying Power Using an External Power Supply
Product Overview and Installation
Содержание SIMATIC TD 200
Страница 22: ...1 12 SIMATIC TD 200 Operator Interface C79000 G7076 C272 01 Product Overview and Installation ...
Страница 84: ...A 12 SIMATIC TD 200 Operator Interface C79000 G7076 C272 01 Specifications and Reference ...
Страница 94: ...B 10 SIMATIC TD 200 Operator Interface C79000 G7076 C272 01 Multiple CPU Configurations ...
Страница 126: ...E 6 SIMATIC TD 200 Operator Interface C79000 G7076 C272 01 Modifying a TD 200 Configuration ...