Digital Output (Pulse / Limit Output); Wiring; Protective Conductor Connection / Grounding - ABB 2600T Series Operating Instruction

9.3

Digital output (pulse / limit output)

This digital output can be set as a pulse or limit output
(transistor output) by making parameter changes using the
software.
NPN transistor with open-collector output
Contact switching capacity
Low-level output voltage
High-level output voltage
Quiescent current
9.4

Wiring

Proceed as follows to wire the transmitter:
— Unscrew the transport screw plug from one of the two
cable entries located on both sides in the upper part of
the transmitter housing
— These cable entries have a 1/2 inch NPT or M20x1.5
female thread. Various adapters and bushings can be
fitted to these threads to comply with plant wiring
(conduit) standards
DANGER - Risk to life due to explosion!
In an explosion-proof / flameproof installation in a
hazardous area, the housing cover of the terminal
compartment must not be removed when the
voltage is connected, as an explosion may be
caused by spark formation. Before removing the
housing cover of the terminal compartment,
disconnect the equipment from the supply voltage
and take suitable measures to prevent
reconnection.
— Remove the housing cover from the terminal
compartment.
— Run the connection cable through the opening and
connect the + wire to the + terminal and the - wire to the –
terminal.
— Run the temperature sensor cable (if there is one) through
the second cable entry and connect it to the designated
terminals
IMPORTANT (NOTICE)
Do not connect the supply voltage across the test
terminals. It could damage the test diode in the
test connection.
— Plug and seal the cable entries. Make sure that when the
installation has been completed, these openings are
properly sealed to prevent the entry of rain and corrosive
vapors and gases. In particular, for "Ex-d" (flameproof
enclosure) installations, plug unused openings with a
suited sealing plug that has been certified for explosion
protection.
— If applicable, install the connection cable with a drip loop.
Arrange the drip loop so the lower part is located below
the cable entry and the transmitter housing
32 OI/266CXX/266JXX/HART-EN Rev. B | 266CRx, 266JRx, 266CSx, 266JSx
10 ... 30 V, maximum 120 mA DC
0 ... 2 V
Maximum 30 V
500 μA
— Replace the housing cover on the terminal compartment
and tighten it by hand until the cover contacts the housing
metal-to-metal. To prevent the housing cover from turning,
in "Ex-d" type of protection (flameproof enclosure)
installations, lock it by turning the locking screw / hex-
head screw anti-clockwise with the 2 mm Allen key
supplied with the device.
1 Cover safety screw
Fig. 26
WARNING – bodily injury!
If the cables, cable glands and stopper plugs
used for the electrical connection do not satisfy
the requirements for the type of protection (e.g.
intrinsic safety, flameproof enclosure, etc.) and
the necessary degree of protection for the
housing (e.g. IP 6x in accordance with IEC EN
60529 or NEMA 4x), explosions or fires can be
triggered.
For this reason, the red plastic transport caps
must be replaced with cable glands or stopper
plugs, that are approved for the required type of
protection and the required degree of protection
for the housing. See section "Ex-relevant
technical data".
9.5

Protective conductor connection / grounding

For the ground (PE) of the transmitter or the connection of a
protective conductor, a connection is available on the exterior
of the housing, and also in the terminal compartment. Both
connections must be galvanically connected to one another.
These connection points can be used if grounding or the
connection of a protective conductor is prescribed by national
regulations for the selected type of supply or the type of
protection used.
Fig. 27
M10837