User Documentation
5 Detailed descriptions of safe modules | Digital input module UR20-8DI-PN-FSOE, UR20-8DI-PN-FSOE-V2
32 1484600000/07/11.2020u-remote IP20 modules for functional safety manual
Digital input module UR20-8DI-PN-FSOE (Best.-Nr. 1529800000), UR20-8DI-PN-FSOE-V2
(Best.-Nr.2464600000)
The UR20-8DI-PN-FSOE or UR20-8DI-PN-FSOE-V2 digital
input module is a safe I/O module for the Fail-Safe-over-
EtherCAT (FSoE) protocol. The module can detect up to 8bi-
nary control signals. Two sensors can be connected to each
connector using a 2-wire, 3-wire or 4-wire connection. In the
event that the available supply current of 0.8A per plug will
not sufce, the sensor supply must be realised using the aux-
iliary outputs of another module (e.g. potential distribution
module) within the same power segment.
Astatus LED is assigned to each channel. The module elec-
tronics supply the connected sensors with power from the
input current path (I
IN
)
A test pulse check of the inputs can be parameterised as a
cross-circuit detection between input singal and supply volt-
age, between different input signals or other signals. Thus an
input gets active only when the signal of the dedicated auxil-
iary output is pending. The test pulses must be disabled, if a
safety relay with OSSD outputs generating own test pulses is
connected.
1
2
3
4
2
1
3
4
1
2
3
4
2
4
3
1
2
4
3
1
1
2
3
4
2
1
3
4
1
2
3
4
2
4
3
1
2
4
3
1
DI 0 (PN)
AUX-O 0
AUX-O 1
DI 1 (P)
DI 2 (PN)
AUX-O 2
AUX-O 3
AUX-O 0
AUX-O 1
AUX-O 2
AUX-O 3
DI 3 (P)
DI 4 (PN)
AUX-O 4
AUX-O 5
DI 5 (P)
DI 6 (PN)
AUX-O 6
AUX-O 7
DI 7 (P)
8DI·PN
DI 0 (PN)
DI 1 (P)
DI 2 (PN)
DI 3 (P)
DI 4 (PN)
AUX-O 4
AUX-O 5
DI 5 (P)
DI 6 (PN)
AUX-O 6
AUX-O 7
DI 7 (P)
8DI·PN
GND
24 V DC
GND
24 V DC
Safety relay
with OSSD
outputs
1
Safety relay
with OSSD
outputs
2
Connection diagram UR20-8DI-PN-FSOE, UR20-8DI-PN-FSOE-V2
A safety sensor that is being connected in a dual channel
mode must allocate the PN and the P-input of one connector
(safety architecture of category 4 acc. to DINENISO13849).
5.4 Digital input module UR20-8DI-PN-FSOE, UR20-8DI-PN-FSOE-V2