Festo CTEU-EC - Page 87

A. Technical appendix
A-5
Festo P.BE-CTEU-EC-OP+MAINT-EN en 1208NH
Power supply
Operating voltage for bus nodes and connected
I-port devices
1)
– Nominal value
– Tolerance range
DC 24 V
DC 18 … 30 V
Load voltage for connected devices
1)
– Tolerance range DC 18 … 30 V
2)
Bus node intr insic current consumption
from o perating voltage supply for electronics/
sensors (U
EL/SEN
)
max. 60 mA at 24 V
(internal electronics)
Load capacity of the operating and load voltage
supply
1) 3)
– Bus node on device (e.g. valve terminal)
– Bus node on electrical connection box, type
CAPC-... (X
1
and X
2
)
max. 4 A
max. 2 A
Isolation
EtherCAT interfaces for U
EL/SEN
Galvanically isolated
Mains buffering time 10 ms
1)
Separate external fuse s are required for o perating and load voltage supply
2)
Dependent o n the c onnected device ( e.g. valve terminal)
3)
Load capacity with regard to the connected equipment, e.g. the valve terminal, including the bus
node
I-port interface signal transmission
– Internal cycle time 1msper1byteofuserdata