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When S3 is set to Software Selectable mode, the inhibiting configuration is set using the
module configuration in the STS Site Configuration (see Table 10-2 below).
Procedure 10-1 describes how to set the 12V DO dip switch in order to enable relay inhibiting
of EE relays.
Procedure 10-1 How to Set the 12V DO Dip Switch to Enable Relay Inhibiting.
1) If the 2-pin TB is plugged into the 12V DO Control on the front panel of the power supply
module, unplug it.
2) Remove the DO module from the slot in the rack.
3) Using a sharp tool (such as tweezers, a small screwdriver, or the tip of a ball-point pen),
through the plastic wrap set the S3 dip switch (see Figure 10-3) on the DO module board
to the desired position, SW1 = OFF, SW2 = OFF, according to the legend in Table 10-1.
4) Replace the DO module in the rack.
5) Replace the 2-pin TB back into the 12V DO Control on the front panel of the power supply
module.
DO Keep Last Value (KLV) and Predefined Value (PDV)
Each output can be configured to KLV or to a PDV (0, 1). This value is executed when the
user program stops or when the module has no communication with the CPU module. Also,
the PDV can be used during normal operation to force a value on the output by ignoring the
user program value (mask).
Reset DO at Startup
It is possible to configure the module to reset all the ML relays positions on startup. This is
set in the STS site configuration.
Table 10-2 ACE3600 High Voltage DO Relay Module Configurable Features
Parameter
DO Keep Last
Value & Pre
Defined Value
Figure 10-3 12V DO Dip Switch
Selection
Default Setup
KLV/PDV
KLV
PDV = 0/1
10-5
Digital Output Relay 120/230V Module
Per Module/
Parameter
Input
Setup Location
Output
Application
Programmer I/O
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