Delta R2-EC 004 Series - Output Port Wiring Example

Wiring and Installation R2-ECx004 User Manual
3-4
3
3.2 Output port wiring example
 Connect NPN (SINK) type load to R2-ECx004 output ports
The IO power (IO_24V / IOGND) and module power (24VPWR / PWR_GND) should be two
independent power circuits.
The following figure illustrates a single output point (Y00). The structure is the same for the
other 15 output points (Y01 - Y15). Connect the GND of the output port to IOGND to avoid
output status error. If an inductive load is connected, ensure to connect a flyback diode to both
sides of the inductive load in parallel to protect the output circuit.
Controller
Relay
IOGND
GND
Y00
IO_24V
FBD
FBD: flyback diode
Y15
Internal circuit
SINK
(External power supply)
WARNING
Follow these instructions for power supply and wiring to prevent any danger.
 Use two independent 24 V
DC
power supplies for the module and the common input /
output points to ensure proper operation.
 Use 26 - 18 AWG wires for wiring.