Delta Ultron HPH Series, Руководство пользователя

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Ultron HPH Series
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NOTE:
Regarding Figure 5-11 , each figure represents that the main AC power is the TN
system and a 3-pole protective device is installed between the UPS and the main AC
power. If your main AC power is the TT system, please in- stall a 4-pole protective
device between the UPS and the main AC power.
4. Use the provided parallel cable to connect the parallel ports on the parallel units. Please see
Figure 2-3~2-4 for parallel port location.
5. Ground the parallel UPSs.
WARNING:
1. When UPSs are paralleled, the length of each unit’s bypass input cables/ output cables
must be equal. This ensures that the parallel UPSs can equally share the equipment
loads in bypass mode.
2. Only UPSs with the same capacity, voltage and frequency can be paralleled;
otherwise, parallel functions will fail.
3. Before start-up of parallel units, qualified service personnel should set ID (1, 2, 3 or 4)
through touch panel. Otherwise, UPSs cannot be started. If there is a conflict between
ID numbers, a warning information will appear on touch panel correspondingly.
(Figure 5-11: Parallel Units Dual Input Wiring Diagram)