Installation and Commissioning
03/03
CP 243-1 IT
J31069-D0429-U001-A0-7618
48
General guidelines
Below are some general guidelines for wiring your programmable controller.
•
Be sure to comply with all valid and binding standards when you wire your CP
243-1 IT. When installing and operating the device, adhere to applicable na-
tional and regional regulations. Ask your local authorities for the standards and
regulations which apply to your special situation.
•
Only wire the S7-200 CPU and the CP 243-1 IT in a de-energized state!
•
Use lines with the cross section appropriate for the particular electricity strength.
The 24 V power supply of the CP 243-1 IT can be wired with lines with a cross
section between 0.50 mm² and 1.50 mm². For the wiring of the grounding termi-
nal, use lines with a cross section of 1.50 mm².
•
Do not tighten the connection terminals too tight. The maximum tightening mo-
ment is 0.56 Nm.
•
Keep the lines as short as possible. Lines should be installed in pairs - one neu-
tral or directly grounded conductor together with a phase conductor or a signal
line.
•
Separate alternating current wiring and high voltage direct current wiring with
fast switching sequences from the low voltage signal wiring.
•
Provide suitable overvoltage protection for lines which may be hit by lightning.
•
The S7-200 CPU and the CP 243-1 IT should be connected to the same power
supply!
•
The CP 243-1 IT is equipped with an integrated ribbon cable with connection
socket for fast connection to other S7-200 components.
•
The slot on which a CP 243-1 IT can be operated depends on the firmware ver-
sion of the S7-200 CPU being used. See note on page 47.
•
A maximum of one CP 243-1 or one CP 243-1 IT is supported per CPU.
Electrical requirements
The input voltage must always be 24 V DC. Apply 24 V direct current only from
current sources which offer secure electrical separation from 120/230 V AC and
similar sources of danger. Secure electrical separation is defined in the following
standards.
−
PELV in acc. w. EN60204-1
−
Class 2 or current circuit with limited voltage/current in acc. w. UL 508
The power supply on the S7-200 backplane bus is provided by the particular S7-
200 CPU.
Make sure that the CP 243-1 IT is correctly grounded.
Содержание CP 243-1 IT
Страница 46: ...Installation and Commissioning 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 46 ...
Страница 94: ...Programming 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 94 ...
Страница 106: ...Diagnosis 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 106 ...
Страница 120: ...Technical Data 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 120 ...
Страница 130: ...Example 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 130 ...