4 Operation and Maintenance
(1-10kVA) UPS IST3
User Manual
32
4 Operation and Maintenance
This chapter mainly describes the operation process, operation method, daily maintenance and
troubleshooting, etc.
4.1 Check Before Startup
Check if the wire connection is firm and the color of AC wires is in accordance with the
specification.
Check if UPS is grounded reliably.
Check if the voltage between the neutral wire and grounding wire is less than 5Vac.
If installing the remote monitoring device in the UPS, check if the wiring in the RS232 port is
correct.
If it is long backup model, check if the wiring between UPS and battery cabinet is correct and
reliable.
Check if the wiring is neat and the wire binding is in accordance with the specification.
Check if the installation and wiring are good for transformation, expansion and maintenance in
future.
Check that there is no short-circuit in the output of UPS and the load capacity isn't beyond the
rated capacity of UPS.
4.2 Startup Operation
4.2.1 1kVA(L)/ 2kVA (L)/3kVA (L)
Step 1
Connect UPS with mains socket.
Step 2
Press "ON" button on the panel for 1s to start UPS.
Step 3
About 10s later, if the UPS works steadily, start loads, such as PC, etc.
Start load with the sequence that "high power device
→
small power device", which is to avoid overload
protection when starting high power device.
Summary of Contents for IST3 Series
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