Power Supply; Safety Wiring; Input Point Wiring - Delta DVP-SA2 Instruction Sheet

 Power Supply
The power input of DVP-SA2 is DC. When operating DVP-SA2, please note the
following points:
1. The power is connected to two terminals, 24 VDC and 0 V, and the range of power is
20.4 to 28.8 VDC. If the power voltage is less than 17.5 VDC, the PLC will stop
running, all outputs will go "Off", and the ERROR indicator will start to blink
continuously.
2. The power shutdown for less than 10ms will not affect the operation of the PLC.
However, the shutdown time that is too long or the drop of power voltage will stop the
operation of the PLC, and all outputs will go off. When the power returns to normal
status, the PLC will automatically resume the operation. (Please take care of the
latched auxiliary relays and registers inside the PLC when doing the programming).
 Safety Wiring
Since DVP-SA2 is only compatible with DC power supply, Delta's power supply modules
(DVPPS01/DVPPS02) are the suitable power supplies for DVP-SA2. We suggest you
install the protection circuit at the power supply terminal to protect DVPPS01 or
DVPPS02. See the figure below.

AC power supply:100 ~ 240VAC, 50/60Hz
Emergency stop: This button cuts off the system power supply when accidental

emergency takes place.

Power indicator

Power supply circuit protection fuse (2A)

DC power supply output: 24 VDC, 500 mA

Digital I/O module
 Input Point Wiring
There are 2 types of DC inputs, SINK and SOURCE. (See the example below. For
detailed point configuration, please refer to the specification of each model.)
 DC Signal IN – SINK mode
Input point loop equivalent circuit

Breaker

AC power supply load

DVPPS01/DVPPS02

DVP-PLC (main processing unit)
 DC Signal IN – SOURCE mode
Input point loop equivalent circuit
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