620382
12
Zoom out
Zoom in
Previous page
1/56
Next page
12/56 CC1B7865E February 10, 2000 Landis & Staefa Division
4. Electrical connections
The choice of cable, the installation and the electrical connections of the controller
must conform to the regulations of VDE 0100 «Regulations for the installation of
power circuits with nominal voltages below AC 1000 V», or appropriate local
regulations
The electrical connections may only be carried out by qualified personnel
If contact with live parts is possible while working on the unit, the controller must be
disconnected from the power supply at both poles
An internal current-limiting resistor interrupts the supply voltage in the event of a short-
circuit. The external fusing should not be rated above 1 A (slow). The output relays
must be fused for a maximum of 2 A to prevent contact welding in the event of a short-
circuit in the load circuit
Ö
Section 11.2 «Outputs»
No other loads may be connected to the supply terminals of the controller
The electromagnetic compatibility and interference suppression levels conform to
standards and regulations listed under «Technical data»
Ö
Chapter 11 «Technical data»
Input, output and supply cables should be routed separately, not parallel to one
another
Arrange sensor and interface cables as twisted and screened cables, and do not run
them close to power cables or components. Ground the screening to the controller
at
one end
to the «TE» terminal
Earth the «TE» terminal of the controller to the protective earth. This cable must have
a cross-sectional area that is at least as large as that of the supply cables. Earthing
cables must be wired in a star configuration to a common earthing point connected to
the protective earth of the supply. Earthing cables may not be looped from one
controller to another
The unit is not suitable for installation in areas with an explosion hazard
Incorrect settings on the controller (setpoint, data of parameter and configuration
levels) can affect the proper functioning of the following process or lead to damage.
Safety devices that are independent of the controller, such as overpressure relief
valves or temperature limiters / monitors should therefore always be provided, and
only be capable of adjustment by qualified personnel. Please observe the appropriate
safety regulations. Since self-setting cannot be expected to handle all possible control
loops, the stability of the actual value that is produced should be checked
The analog inputs of the controller may not exceed a maximum voltage of AC 30 V or
DC 50 V against «TE»
Ö
Section 4.3 «Galvanic separation»
4.1 Installation notes
Safety regulations
Fusing
Interference suppression
Incorrect use
12


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Siemens RWF40 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Siemens RWF40 in the language / languages: English as an attachment in your email.

The manual is 0,81 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info