Xylem LOWARA SMB /SVE Series, Инструкция по установке, эксплуатации и обслуживанию

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en
– Original instructions
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5 Use and operation
In case of co-existance of two or more of the following conditions:

high ambient temperature

high water temperature

duty points insisting on maximum power of the booster set

persisting undervoltage of mains,
the life of the booster set may be jeopardised and/or derating may occur: for further information
contact Xylem or the Authorised Distributor.
5.1 Wait times
WARNING: Electrical hazard
Contact with electric components may cause death, even after the booster set has been switched off.
Before any interventions on the booster set, the network voltage and any other input voltages
must be disconnected for the minimum time indicated in Table 1.
Table 1: Wait times
e-SM Drive model Minimum waiting times [min]
103, 105, 107, 111, 115 4
303, 305, 307, 311, 315, 322 5
WARNING: Electrical hazard
Frequency converters contain DC-link capacitors that can remain charged even when the
frequency converter is not powered.
To avoid electrical hazards:

Disconnect the AC power supply

Disconnect all types of permanent magnet motors

Disconnect all DC-link remote power supplies, including the battery backups, the
Uninterrupted Power Supply units and the DC-link connections to other frequency converters

Wait for the capacitors to discharge completely before carrying out any maintenance or
repairs; see Table 1 for the waiting times.
5.2 Starting and stopping
Starting and stopping of the pump units depends on the settings of the frequency converter in
relation to the pump unit that is to be controlled (pressure, level).
Each frequency converter is connected to a sensor. The frequency converters share all the
information and implement cycled switching.
Electrical hazard:
Disconnect the power supply before making any adjustments.
For the settings, refer to the Installation, Operation and Maintenance Manual of the pump units in
the Smart Pump Range.