USERS | SP PRO Operation
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Doc #OI0003 Part #004122 Rev 04 2010
Manual Generator Control
The generator can be manually controlled via the generator local controls. The SP PRO generator available
signal from the generator switch must be inactive.
Note: To disconnect from a generator without supply interruption, before manually stopping the
generator it is advisable to open the Generator AC Circuit Breaker and wait until the SP PRO no
longer indicates transfer.
After the generator is stopped, close the Generator Circuit Breaker ready for the next generator start.
Remote Run Input
The
REMOTE RUN
switch operates as follows:
• A switch closure longer than 0.5 seconds and shorter than 2 seconds causes the SP PRO to start the
generator. Another such closure stops it, else it is stopped automatically when the battery reaches full
charge and any sustained large load ceases. The switch is typically a non-latching pushbutton.
• A switch closure longer than 2 seconds causes the SP PRO to start the generator, and stop it when the
switch is opened. The switch is typically a latching toggle.
Regardless of how the generator is started (manually or automatically), while the generator is running the
SP PRO automatically charges the battery whenever sufficient generator power is available, and when fully
charged will hold the battery in float charge.
Generator Fault Recovery
If the SP PRO fails three consecutive times to detect significant generator voltage for one minute after a
generator start or, if voltage is detected but fails to synchronise for five minutes, a Generator Fault alarm will be
asserted. The SP PRO will then use the following sequence of generator start attempts:
•
After 15 minutes
•
After 1 hour
•
Daily, when any pre-programmed SoC level is reached.
•
When any DC low voltage limit is reached.
A Gen Fail event will be generated and logged each time a start attempt fails.
Note: To force the SP PRO to immediately restart the generator toggle the Generator Available
input so that the generator changes to NOT Available then back to Available. Use the Generator
pushbutton to start the generator.
