GE Industrial Solutions MX350 Instruction manual - Manual (Page 98)

6–2 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
INFORMATION CHAPTER 6: EXERCISER
Setup
The Home > Exercise > Setup page displays the MX350 Exerciser parameters as shown
below.
Figure 2: Exerciser values
Exercise type and schedule can be selected on the Excerciser > Setup screen as seen
above. The mode of operation of the exerciser function can be selected with a time base
of 1 day, 1 week, 14 days, 28 days, or 365 days. With a time base of 365 days, up to 24
events can be scheduled. With all other time bases, the number of exercise events is
limited to 7.
For each exercising event, the operator enters a start time as well as a duration. The
exercise duration range is 0 to 60 minutes. In addition, the operator can select the type of
exercise as ‘Genstart and Transfer’ or as ‘Genstart only’.
NOTE
NOTE: Do not program two or more CDT events for the same time.
When the ‘Gen Start only’ mode is selected, the controller will start the engine, but does not
actually transfer the load. In this mode, the readiness for the engine generator set is
tested. It does not test the functionality of the Automatic Transfer Switch itself.
In the ‘Gen Start and Transfer’ mode, the controller starts the engine and actually transfers
the load to the alternative source. This mode can be used to test the integrity of the
emergency power system. It can also be used to setup a schedule for times of operation
when the switch load will run on an alternative power supply. This could be done, e.g., to
avoid power demand charges from a utility company.
If the operator chooses to abort an ongoing test, there is a ‘Test Cancel’ button on the
Exerciser > Info screen. This screen also contains a ‘Test’ button that will take the user
directly to the Test screen.
Test
The Home > Exerciser > Test page displays the MX350 sytem test choices, as shown
below.
From the Test screen the user can perform the same operations as performed by the
exerciser. Whereas exercises are performed automatically, a Test always has to be
initiated by the user.