MPAC 1000 TRANSFER SWITCH CONTROLLER

Replaced by MPAC 1500 Transfer Switch Controller

The MPAC 1000 firmware (application program) is factory loaded and used for field upgrades or replacements.

Program Loader software is required to upgrade the controller firmware.

Notice: Do not load an earlier version over a later version of the firmware.

Version 1.32
Aichi Contactor Change: Modified method for measuring transfer times.
Load Control Active: Indicator change.
Input Change: When "Inhibit Transfer", "Bypass Contactor Disable", or "Maintenance DIP Switch" active, remaining active input ignored.

Version 1.31
Commit-To-Transfer: Change activation to end of Engine Start Time Delay.
Normal Frequency: Change dropout default setting to 0.5 sec.
Programmed Transition: Change emergency source transfer to Preferred until active (exercise and test) mode ended.

Version 1.30
3 Source System Disable: Correction to function to verify engine start contact position.

Version 1.29
Commit to Transfer: Function enabled.

Version 1.28
Preferred Source: Correction to function.

Version 1.27
Standby Source: Correction to "Fail to Acquire Standby" fault if Normal Source is not available.
Normal Source: Correction to ensure generator turns off upon return to Normal Source.