KR series
（
6
-
10kVA
）
user
’s manual
- 31 -
5.
Using and Operation
Summary
Operation steps and methods are introduced in this chapter,
including preparation before electrifying, UPS start steps when
main source is normal, as well as UPS start steps and indicator
light meaning when main source fail.
5.1 Notes of using UPS
1. Before the UPS startup, check if the load is proper, which should not exceed the rated power,
to avoid UPS overload protection or power supply from bypass all the time.
2. Do not use the switch on the UPS panel as the power switch of the load equipments. Should
strictly follow below sequence to turn on or off UPS: when startup, firstly turn on the switch on
the UPS panel then turn on the equipments’. While shutdown, firstly turn off the switches on
the load equipments then the UPS. In this way, frequent startup can be avoided.
3. Till the UPS startup into steady work status, turn on the load equipments with sequence of
high-power ones first and low power ones later because the startup current of some equipments
are large enough to result in over-load protection (or bypass protection). So it is advisable to
start such equipments before the others.
4
．
When the UPS connected to the generator necessary as the mains supply cut off,
firstly start the generator. Until the generator is on steady work status, turn on UPS,
otherwise, the UPS or the load equipments may be damaged. And reversely,
disconnect the UPS firstly and then the generator before the generator turned off.
5.2 UPS single unit operation process
The operation steps are demonstrated as below figure 5.2-1. For the first time starting the UPS,
it’s required to check before power on. As introduced in 5.3.1 section, when confirm all is in
good condition, the UPS can be turned on. If UPS will not be used for long time, it needs to be
checked before power on.
