Burkert Type 8643 - Handbuch (Seite 5)

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Cable gland for earth cable PA
(potential equalisation)
Cable glands for intrinsically safe
circuits (8 screw joints, blue)
Cable glands for bus and power
supply (4 screw joints, black)
Location of the cable connections on the plastic Fig. 2:
housing of the device
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When delivered, the cable glands are covered
with protective caps. These protective caps must
remain on the cable glands until the cables are
connected to keep out dirt.
diP-switch 6.2.2.
ON
ON
OFF
Switch 1
DIP-Switch Fig. 3:
Switch 1 - ON:
Simulate can be locked so that the READBACK_D is over-
written in the DO_valve function block.
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led-display 6.2.3.
LED 1 green
LED 2
green
LED 3 red
LED-Module
(optional)
LED 1 is lit when voltage is applied to the bus
supply.
LED 2 is lit if the device is using cyclic data transfer.
LED 3 is lit if the device is not using cyclic data
transfer (only after Power on or if the
Watchdog is active).
Location of the LED-Display Bild 1:
If neither LED 2 nor LED 3 is lit, check power
supply!
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Technical daTa 7.
General Technical data 7.1.
Values for 2 and 4-lead versions
Housing material
Polyester, aluminium
Cable entry Polyamide cable fittings
Degree of protection IP65 (DIN EN 60529)
Protection class 3 (DIN EN 61140(VDE 0140-1))
Ignition protection identi-
fication (entire device)
II 2 (1) G Ex [ia] me IIC T
Inputs 8, intrinsically safe, NAMUR
(according to EN 60947-5-6)
Outputs 4, intrinsically safe
Outputs for pilot valves:
Min. switching current 30 mA (Power reduction on
holding current after min. 50 ms)
Min. holding current 15 mA
Internal resistance 330 Ohm
Open-circuit voltage 24 V
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Type 8643