Connection Via Digital I/O; Fig. 14 Connection Example Via Digital I/O With An Embedded Pc Cx7000 With Digital Inputs - Beckhoff CU8110-0060 Manual

6.3.4

Connection via digital I/O

For devices without USB connection, a digital input signal can be monitored. In the event of a power failure,
a power fail signal is sent by the UPS. This signal can be wired to a digital input and monitored in the PLC.
See figure:
Fig. 14: Connection example via digital I/O with an Embedded PC CX7000 with digital inputs.
P FAIL
In the case of Beckhoff Industrial PCs, the P-FAIL output of the UPS can be connected to the PC_ON input
of an Industrial PC. In the event of a power failure, the P-FAIL output is set to 24 V. 24 V are thus applied to
the PC_ON input of the Industrial PC and the Industrial PC is shut down properly.
UPS EN
The Power Status output of an Industrial PC can be connected to the UPS-EN input of the UPS in order to
switch off the U1out and U2out outputs of the UPS in the event of a desired PC shutdown. After the
Industrial PC is shut down, the Power Status output is switched from 24 V to 0 V. This falling edge signals
the UPS to immediately switch off the U1out and U2out outputs.
Similarly, any PLC output can be connected to UPS-EN input, controlled from the PLC and used for non-
Beckhoff PCs or controllers.
CU8110-0060
L1
L2
L3
N
PE
- System
Supply
230V
24V
Shielding
Grounding busbar
Version: 1.0
CU8110-0 0 06
Uin
Uout
DIAG
X101
Uin P SHDN
OV UPS EN
PE NC
U1out NC
OV P FAIL
PE OV
U2out UPS RDY
OV OV
PE PE
X102
Commissioning
25