turck BL20 Series - 12.6.5 Technical features

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12.6.5 Technical features
Technical data
Fig. 295: Block diagram
Technical data
Designation BL20-E-1SWIRE
Number of SWIRE buses 1
Number of slaves per bus 16
pPower supply
Field voltage (range) 24 VDC (18…30 VDC)
Field current (SWIRE buses at full load) max 600 mA
Power supply of contactors (range) 24 VDC (18…30 VDC)
Power supply current of contactors 3 A
Rated current from module bus (module bus voltage) 60 mA (4,75…5,25 VDC)
Power supply of SWIRE slaves (short-circuit pro-
tected)
17 VDC
Power supply current of all SWIRE slaves (short-circuit
protected)
max 500 mA
Insulation voltage between SWIRE and the module
bus
500 V
eff
module bus
DC
DC
module bus interface
module bus slave
SWIRE master
controller
SWIRE driver
SWIRE interface
U
AUX
GND
U
SW