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Proline 3/1 30K
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FSP Proline 3/1 30K — руководство по параллельной работе источников бесперебойного питания [25/48]

FSP Proline 3/1 15K [25/48] 5 parallel operation

will enter Bypass mode. If the UPS is in maintenance Bypass mode, turn the maintenance switch to

“UPS” position and then turn on the UPS.

3-5. Parallel Operation

1. Parallel system initial startup

First of all, please make sure all of the UPSs are parallel models and have the same configuration.

1) Turn on each UPS to AC mode respectively (Refer to section 3-4(1)). Then, measure the output

voltage of each UPS to check if the voltage difference between actual output and setting value is

less than 1.5V (typical 1V) with multimeter. If the difference is more than 1.5V, please calibrate the

voltage by configuring inverter voltage adjustment (Refer to Section 3-7) in LCD setting. If voltage

difference remains more than 1.5V after calibration, please contact your local distributor or service

center for help.

2) Calibrate the output voltage measurement by configuring output voltage calibration (Refer to

Section 3-7) in LCD setting to make sure the error between real output voltage and detected value

of UPS is less than 1V.

3) Turn off each UPS (Refer to section 3-4(7.)). Then, follow the wiring procedure in section 2-4.

4) Remove the cover of parallel share current cable port on the UPS, connect each UPS one by one

with the parallel cable and share current cable, and then screw the cover back.

5) Turn on the parallel system in AC mode:

a) Turn on the input breaker of each UPS. If using 30KVA unit, please also turn on bypass breaker.

After all UPSs enter to bypass mode, measure the voltage between output L1 of each UPS and

output L2 of each UPS. If these two voltage differences are all less than 1V, that means all

connections are correct. Otherwise, please check if the wirings are connected correctly.

b) Turn on the output breaker of each UPS.

c) Turn on each UPS in turns. After a while, the UPSs will enter to AC mode synchronously and

then, the parallel system is completed.

6) Turn on the parallel system in Battery mode:

a) Turn on the battery breaker (only available in long-run model) and output breaker of each UPS.

NOTE: It’s not allowed to share one battery pack for long-run UPSs in parallel system. Each UPS

should be connected to its battery pack.

b) Turn on any UPS. A few seconds later, the UPS will enter to battery mode.

c) Then, turn on another UPS. A few seconds later, the UPS will enter to battery mode and add to the

parallel system.

d) If you have the third UPS, follow the same procedure of c). Then, the parallel system is complete.

If more detailed information is needed, please contact supplier or service center for parallel

operation instruction.

2. Add one new unit into the parallel system

1) You can not add one new unit into the parallel system when whole system is running. You must cut

off the load and shutdown the system.

2) Make sure all of the UPS are the parallel models, and follow the wiring refer to section 2-4.

3) Install the new parallel system refers to the previous section.

3. Remove one unit from the parallel system

There are two methods to remove one unit from the parallel system:

First method:

1) Press the “OFF” key twice and each time should be lasted for more than 0.5s. Then, the UPS will

enter into bypass mode or no output mode without output.

2) Turn off the output breaker and input breaker of this unit. If using 30KVA unit, please also turn off

FSP Proline 3/1 30K — руководство по параллельной работе источников бесперебойного питания [25/48]

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