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5.2
Power Supply to the AnyWireASLINK System
Method of supplying the power to the slave module
Connect a 24VDC external power supply to the RJ51AW12AL.
The power consumed in the internal control circuits of all the slave modules and the external load power connected to non-
isolation slave modules are supplied collectively from the 24VDC external power supply connected to the RJ51AW12AL.
( Page 17 Performance Specifications)
Scope of the power supply with transmission cables (DP and DN)
The current consumption of the system must satisfy all the following conditions for the RJ51AW12AL.
Item
Calculation formula
I(A) = (Ihin m) + (Iho n) + (Izdin p) +
Condition 1
(Izdo q) The maximum value of
transmission cable supply current
Vm(V) - V(V) 20V
Condition 2
Vm(V) - V(V) The lowest allowable
Condition 3
voltage of the connected load
5 SYSTEM CONFIGURATION
24
5.2 Power Supply to the AnyWireASLINK System
Description
Ihin: Current consumption of the non-isolation input slave module/I/O combined slave module
Iho: Current consumption of the non-isolation output slave module
Izdin: Current consumption of the isolation input slave module/I/O combined slave module
Izdo: Current consumption of the isolation output slave module
m: Number of connected non-isolation input slave modules/I/O combined slave modules
n: Number of connected non-isolation output slave modules
p: Number of connected isolation input slave modules/I/O combined slave modules
q: Number of connected isolation output slave modules
Vm: Supply voltage for the RJ51AW12AL
V: Cable-to-cable voltage drop
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