Bürkert 8643 PA, Руководство по эксплуатации

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SystemDescription
Designation Values
Max. power requirement
Bus voltage
Power consumption of bus
200 mA (17 V)
140 mA (24 V)
110 mA (32 V)
9 ... 32 V DC
12 mA /17 mA FDE
Inputs 8, intrinsically safe, NAMUR
(in accordance with EN 60947-5-6)
Outputs
Outputs for pilot valves
min. switching current
min. holding current
Internal resistance
Off-load voltage
4, intrinsically safe
30 mA
1)
15 mA
330 ohm
24 V
1) Power reduction to holding current after minimum 50 ms.
Designation Values
Electrical connections for inputs and outputs Screw terminals (up to 2.5 mm²)
Field bus interface
Ignition protection type
Electrical connection
Communication in accordance with IEC 1158-2
in accordance with FISCO
EEx i
4 screw terminals bus (up to 2.5 mm²)
3 screw terminals shield
(1x directly and 2x capacitively earthed)
Auxiliary supply
Ignition protection type
Electrical connection Increased safety EEX e
4 screw terminals (up to 2.5 mm²)
Device key (see type label)
polyester body
aluminium body 8643-4-PO-XX-X-XXX
8643-4-AL-XX-X-XXX
• The cable resistance to the sensors and actuators may be max. 20
Ω
.
• The Power I/O Box Type 8643 may be supplied with low safety voltage in accordance with VDE 0631 only.
• The Power I/O Box Type 8643 satisfies the conditions of the EMC Law. EN61000-6-2 Interference
Resistance, EN61000-6-4 Interference Emission
• The safety-related maximum values for operation in explosion-risk area can be found in the Type
Examination Certificate in the Appendix.
english
Type 8643 PA