JUMO 706581 LOGOSCREEN nt Paperless Recorder with TFT display, CompactFlash Installation Instructions - Manual (Page 15)

15
4 Electrical connection
4.1 Installation notes
k The device is designed for installation in electrical cabinets, machines, or
systems. External fuse protection and shut-off must be provided for the
device. The fuse must not exceed 20 A.
An instrument fuse is already built into the device itself (depending on
the device design).
20 — 30V AC/DC, 48 — 63Hz :
fuse 2.5A slow-blow
100 — 240V AC +10/-15%, 48 — 63Hz : fuse 1.25A slow-blow
k The choice of cable, the installation and the electrical connection must
conform to the requirements of VDE 0100 “Regulations on the
Installation of Power Circuits with Nominal Voltages below 1000V” or the
appropriate local regulations.
k Work inside the instrument must only be carried out to the extent
described and, like the electrical connection, only by qualified personnel.
k For service and repair work the device must be disconnected from the
power supply (all poles).
k To generate the operating voltage of 20...30 V for Extra Low Voltage
(ELV), the maximum nominal voltage of an external power supply must
not exceed 240 V (line-to-line and line-to-neutral). If the external nominal
voltage is greater than 240 V, an Safety Extra Low Voltage (SELV) power
supply must be used. For line-to-line supply of the external power
supply, the power supply must have all-pole fuse protection. The fuse
must shut off both connections.
k Run input, output and supply cables separately and not parallel to one
another.
k In EMC disturbed environments, all input and output cables without
connection to the mains supply must be arranged as twisted and
screened cables. Earth the screen on the instrument side to the earth
potential.
k Ground the instrument at the PE terminal of the supply voltage
connector to the protective earth conductor. This cable must have the
same cross-section as that used for the supply cables. Earthing cables
must be wired in a star configuration to a common earth point that is
connected to the protective earth conductor of the electrical supply.
k Do not connect any additional loads to the supply terminals of the
instrument.
k The device is not suitable for use in areas with an explosion hazard (Ex
areas).
k Electromagnetic compatibility (EMC) conforms to the standards and
regulations cited in the technical data.
v Chapter 6 “Technical data (extract from data sheet)”
k Inductive loads close to the instrument, such as contactors or solenoid
valves, should have RC modules fitted for interference suppression.