Electrical Connection; Safety Instructions; General Installation Instructions - ABB TZID Operating Instructions Manual

3.3 Electrical connection

3.3.1 Safety instructions

!
WARNING

3.3.2 General installation instructions

!
CAUTION
42/18-54 EN
• Observe the common VDE safety regulations and the accident preven-
tion rules of the Employers Liability Insurance Association.
• Observe the common standards and safety regulations for the installa-
tion and operation of electrical systems.
• When connecting the device, observe all electrical specifications in
these operating instructions or in the data sheet.
• For the electrical installation of explosion-protected devices, observe all
standards, regulations and directives governing explosion protection
and applicable for the construction and use of explosion-protected sys-
tems, especially the DIN/VDE directives, the directives for explosion
protection (VDE 0165 or EN 60079), and the special requirements and
specifications for your devices (see chapter "Certificates").
• Explosion-proof devices may only be supplied with safe extra-low vol-
tage (SELV) according to EN 60 950.
• When using the positioner "intrinsically safe with flammable gas"
observe the special conditions stipulated in the certificates.
Observe the following instructions. They are essential to proper operation
and functionality of the positioner.
General
• Do not expose the terminals to strain.
• Exclusively connect signal circuits with load-independent 4...20 mA
current to terminals +11/-12.
• Make sure that the maximum current does not exceed 300 mA
(150 mA for intrinsically safe devices) in case of a malfunction and
150 mA in case of polarity reversal.
Technical data
• When connecting the device, make sure that the electrical specifica-
tions and limits in the technical data section of this manual or in the
data sheet are observed.
Electromagnetic interference
• Do not lay signal lines close to power lines. Power lines produce inter-
ference in their near vicinity, which may affect measured value trans-
mission on the signal line.
Electro-pneumatic positioner TZID 23