CHAPTER 5
APPLICATIONS
Entire Contents Copyright
2004 by Adaptive Power Systems, Inc. (APSI) • All Rights Reserved • No reproduction without written authorization from APSI.
APS-1000 Series
5 - 3
OM-001-01000-000-04.0
Manual Switcher (Three-Program Control)
The user can build a simple switch circuit to operate the PLC interface. Use the
following information to build a cable and switch-box. The Sync input circuitry shown
below is not required for this switch box approach.
Note: Do not use long unshielded cables and/or poor-quality switches. The length of
control cable you can use will depend on the type of shielding, ground quality, and the
electrical environment you are operating in. Use good instrumentation wiring
techniques to minimize problems.
DE-9
Item
Comments
2
+ 12 VDC
Low Power, Current Limited
3 to 5
SPST Switch
ON/OFF Dry Contact
4
Vcc Sync
Sync Input Opto Bias Voltage
5 to 8
SPST, NO
P1 Momentary, Dry Contact
5 to 9
SPST, NO
P2 Momentary, Dry Contact
5 to 8 and 9
SPST, NO
P3 Momentary, Dry Contact
6
Common
Sync Input Opto Bias Common
8 and 9
Diodes (+ side)
1N4148 or 1N914, etc.
PLC DE-9 Connector and Control
