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Isolated switch circuit, Isolated current source circuit – Dukane DPC II Plus 9001:2000 User Manual

Page 177

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167

Dukane Manual Part No. 403–566–01

Appendix C – User Supplied Circuitry

Isolated Switch Circuit

Isolated Current Source Circuit

Figure C–5 illustrates a fully isolated circuit con-
nected to the Isolated Automation Inputs. This re-
quires an external power supply to drive the switch.
The SH707 jumper block needs to be placed in
the JU726 position (refer to Figure 5–12).

DPC Ground

+22V

DPC Internal
Power Supply

Current
Limit Circuit
250mA max.

Pin #2 & Pin #7

Isolated Input
High–Side

Isolated Input
Low–Side

Automation
Ground

+5 to +24V
Automation
Power Source

Isolated

Current

Source

Pin #3 – Operate
Pin #5 – Press Control
Pin #9 – Auto Stop

Pin #4 – Iso Common

No Connection

Pin #1

No Connection

Jumper Block SH707
Position JU726

(Refer to Figure 5–12)

+24V

Internal
DPC II Plus
Circuitry

Optical Isolation

Circuit

User
Supplied
Switch
Circuitry

Current
Limit Circuit
12.5 mA

max.

12.5 mA

max

4 mA

min

Figure C–5

Isolated Current Source