PSS SB DI8O8
18
Operating Manual
ENGLISH
Technical details
Electrical data
Supply voltage
"Supply": 24 V DC
"Load Supply" 24 VDC
Tolerance
20 ... 30 VDC including residual ripple
of max. ± 1.2 V
Input capacitance
570 µF
Power consumtion
"Supply": 150 mA plus load currents
from the test pulse outputs and load currents
for fibre-optic couplers (25 mA per fibre-
optic coupler);
"Load supply": max. 10 A
Galvanic isolation
Yes (optocoupler), between inputs/outputs
and SafetyBus p
Connection type
Spring-loaded terminals or plug-in screw
connectors
SafetyBUS p
Transmission rate
Max. 500 kBit/s
Cable runs
Max. 3500 m
Transmission type
Differential two-wire cable,
Fibre-optic cabale via fibre-optic coupler
Connection
9-pin D-Sub connector
Digital inputs
Number of inputs
8
Potential isolation
Yes, from SafetyBUS p
Signal level at “1” (high)
+15 ... +30 VDC
Signal level at “0” (low)
-3 ... +5 VDC
Input current
Typ. 6 mA
Input delay
< 1 ms
Pulse suppression
< 500 µs
Status indicator
Yellow LED
Outputs, positive-switching
Number of outputs
6
Potential isolation
Yes, from SafetyBUS p
Output current at “1” signal
2 A
Permitted range
0 ... 2.5 A
Short circuit protection
Electronic
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