SIPART PS2 (6DR5...)
14
A5E03436620-AB, 01/2017
3.6.1
Internal NCS module
The internal NCS module is used for wear-free position detection and is an optional equipment version in the positioner. The
internal NCS module is installed as an alternative to position feedback module at the same slot in the positioner.
4
Connecting
4.1
Basic safety instructions
WARNING
With intrinsically device version (Ex i)
Risk of explosion in hazardous areas.
For intrinsically safe device versions only the certified circuits may be connected as auxiliary power supply, control and
signal circuits.
•
Make sure that the power source of the used circuits is marked as intrinsically safe.
WARNING
Unsuitable cables, cable glands and/or plugs
Risk of explosion in hazardous areas.
•
Use only cable glands/plugs that comply with the requirements for the relevant type of protection.
•
Tighten the cable glands in accordance with the torques specified in Technical data (Page 38).
•
Close unused cable inlets for the electrical connections.
•
When replacing cable glands use only cable glands of the same type.
•
After installation check that the cables are seated firmly.
See also
Construction (Page 40)
NOTICE
Condensation in the device
Damage to device through formation of condensation if the temperature difference between transportation or storage and
the mounting location exceeds 20 °C (36 °F).
•
Before taking the device into operation let the device adapt for several hours in the new environment.
NOTICE
Ambient temperature too high
Damage to cable sheath.
•
At an ambient temperature ≥
60 °C (140 °F), use heat-resistant cables suitable for an ambient temperature at least
20 °C (36 °F) higher.
WARNING
Improper power supply
Risk of explosion in hazardous areas as result of incorrect power supply, e.g. using direct current instead of alternating
current.
•
Connect the device in accordance with the specified power supply and signal circuits. The relevant specifications can
be found in the certificates, in Technical data (Page 38) or on the nameplate.
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