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Headquarters Singapore
Beckhoff Automation Pte. Ltd.

#05-07/08 Nordic European Centre
3 International Business Park
Singapore 609927, Singapore

+65 6697 6220
info@beckhoff.com.sg
www.beckhoff.com/zh-sg/

EP4378-1022 | EtherCAT Box, 4-channel analog input + 4-channel analog output, multi-function, ±10 V, 0/4…±20 mA, 16 bit, single-ended, M12

EP4378-1022 | EtherCAT Box, 4-channel analog input + 4-channel analog output, multi-function, ±10 V, 0/4…±20 mA, 16 bit, single-ended, M12

EP4378-1022 | EtherCAT Box, 4-channel analog input + 4-channel analog output, multi-function, ±10 V, 0/4…±20 mA, 16 bit, single-ended, M12

EtherCAT signal input
EtherCAT signal output
M12 I/O connection sockets
Signal status display
Labeling areas
Power supply status display:
Box supply (US)
Auxiliary voltage (UP)
Power supply feed
Power supply downstream
connection
1 | Tx+
2 | Rx+
3 | Rx-
4 | Tx-
1 | 24 V DC UP
2 | Input +
3 | GNDP
4 | DIO
5 | Output +
1 | 24 V DC UP
2 | n.c.
3 | GNDP
4 | DIO
5 | Shield
1 | +24 V DC US
2 | +24 V DC UP
3 | GNDS
4 | GNDP
Top view 
I/O connection 
Connector assignment 
EP4378-1022 | EtherCAT Box, 4-channel analog input + 4-channel analog output, multi-function, ±10 V, 0/4…±20 mA, 16 bit, single-ended, M12

EP4378-1022 | EtherCAT Box, 4-channel analog input + 4-channel analog output, multi-function, ±10 V, 0/4…±20 mA, 16 bit, single-ended, M12

The EP4378-1022 EtherCAT Box provides a combination of four analog inputs and four analog outputs as well as eight digital inputs/outputs. The analog channels can be individually parameterized so that they process/generate signals either in the ±10 V or the 0/4…±20 mA range. The resolution of the input signals is 16 bit depending on the sign. The voltage or output current is supplied to the process level with a resolution of 15 bit (default), electrically isolated. The digital channels can be used for reading binary sensors or controlling actuators according to the EN 61131-2, type 1/3 specifications. The inputs have a filter constant of 3 ms. The outputs process load currents up to 0.5 A and are both short-circuit proof and reverse-polarity protected. All output channels have a common ground potential. At the upper four M12 connections each, the following is available: an analog input, an analog output and a digital input/output, which is freely assignable without prior configuration, so that complex end devices such as frequency converters, hydraulic power units, motor drives or similar can be supplied using just one connection cable. At the lower four M12 connections a digital input/output is available each, freely assignable without configuration.

Product status:

regular delivery

Product information

Technical dataEP4378-1022
ProtocolEtherCAT
Bus interface2 x M8 socket, 4-pin, a-coded, shielded
Number of outputs4 x analog, 8 x digital
Number of inputs4 x analog, 8 x digital
Input/output connectionsM12 x 1, 5-pin, a-coded
Signal type-10/0…+10 V | -20/0/4…+20 mA, parameterizable per channel
Loadoutput: > 5 kΩ | 350 Ω
Internal resistanceinput: > 200 kΩ | typ. 85 Ω + diode voltage
Resolution16 bit
Conversion timeinput: ~ 100 µs, output: ~ 40 µs
Measurement error/ uncertaintyinput: < 0.3%, output: < 0.1% (each relative to full scale value)
Actuator supplyfrom the auxiliary voltage UP, max. 0.5 A, total short-circuit proof
Power supply connectionfeed: 1 x M8 male socket, 4-pin, a-coded; downstream connection: 1 x M8 female socket, 4-pin, a-coded
Electrical isolation500 V
Current consumption from US120 mA
Special featurescombi module, current or voltage parameterizable per channel
Weightapprox. 250 g
Operating/storage temperature-25…+60°C/-40…+85°C
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.IP65/66/67 (conforms to EN 60529)/variable
Approvals/markingsCE, UL
Housing data16 x M8, 8 x M12
Dimensions (W x H x D)60 mm x 126 mm x 26.5 mm
MaterialPA6 (polyamide)
Installation2 fixing holes 3.5 mm diameter for M3; 2 fixing holes 4.5 mm diameter for M4

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