25
Technical Data
electrical data
8.3.4.
Connections
2 cable glands (M20 x 1.5) with screw-type terminals 0.14 – 1.5 mm
2
or
circular plug-in connector (M12, 8 pole plug)
Interfaces
Communications interface RS232:
Direct connection to PC via RS232 adapter.
Communication with communications software based on FDT/DTM
technology.
An external adapter with integrated interface driver is required.
(see chapter „
“)
Power supply
24 V DC ± 10% max. residual ripple 10%
Power consumption
< 3.5 W
Input resistance
for set-point value signal
180
Ω
in 0/4 - 20 mA / Resolution 12 bit
Protection class
3 in accordance with VDE 0580
Analog position feedback
max. Burden (load)
for current output 0/4 – 20 mA)
560
Ω
Inductive proximity switches
100 mA current limit
Binary input
Not galvanically isolated
0 – 5 V = log “0”, 10 – 30 V = log “1”
inverted input in reverse order
(input current < 6 mA)
electrical data with as interface bus control
8.3.5.
(optional)
Connections
circular plug-in connector (M12, 4 pole plug)
Power supply
29.5 V ... 31.6 V DC (according to specification)
Units without external power supply:
Max. power consumptione
150 mA
Units with external power supply:
External power supply
24 V ± 10 %
The power supply unit must
feature a secure disconnection in
accordance with IEC 364-4-41
(PELV or SELV)
Max. power consumption
100 mA
Max. power consumption
from AS interface
50 mA
english
Type 8791
Summary of Contents for 8791
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