Electrical Connection; Installation Notes - JUMO LOGOSCREEN 600 Brief Instructions

4.1

Installation notes

Requirements for personnel
• Work on the device must only be carried out to the extent described and, like the electrical
connection, only by qualified personnel.
• Before plugging and unplugging connecting cables, it must be ensured that the acting per-
son is electrostatically discharged (by touching grounded metallic parts, for example).
Cables, shielding, and grounding
• When selecting the electrical wiring material as well as when installing and connecting the
device electrically, comply with the requirements of DIN VDE 0100 "Low-voltage electrical
installations" and the applicable country-specific regulations (for example, based on
IEC 60364).
• Route input, output, and supply cables separately and not parallel to one another.
• Only use shielded and twisted probe and interface cables. Do not route the lines close to
current-carrying components or cables.
• For temperature probes, ground the shielding on one side in the control cabinet.
• Do not perform loopthroughs on the grounding cables, but route the cables individually to a
shared grounding point in the control cabinet; in doing so, ensure that the cables are as
short as possible.
Ensure that the potential equalization is correct.
Electrical safety
• The device is intended to be installed in control cabinets or plants. Ensure that the custom-
er's fuse protection does not exceed 20 A. Disconnect the device from the mains voltage
on all poles prior to starting service or repair work.
• The relay's load circuit can be operated with a hazardous electrical voltage (e.g., 230 V).
De-energize the load circuit during mounting/dismounting and electrical connection.
• To prevent the relay contacts being destroyed in the case of an external short-circuit in the
load circuit, the latter must be fuse-protected as per the maximum admissible relay current
(see technical data).
• The device is not suitable for installation in potentially explosive areas.
• In addition to a faulty installation, incorrectly set values on the device can also impair the
correct function of the downstream process. Therefore, ensure that safety devices indepen-
dent of the device, e.g., overpressure valves or temperature limiters/monitors, are available
and that it is only possible for qualified personnel to define settings. Please observe the cor-
responding safety regulations in this context.
References to other information
• Electromagnetic compatibility meets the standards and regulations cited in the technical
data (see technical data).
• In general, please observe the specifications regarding galvanic isolation.
Technical data
 Chapter 6.1 "Technical data", page 69

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