Wilo CronoBloc BL Series, Инструкция по установке и эксплуатации

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English
46 WILO SE 08/2016
Required connection of the connecting bridges in the terminal box:
• When connecting automatic switchgears, observe the relevant
installation and operating instructions.
• For three-phase current motors with Y- Δ connection, be sure that the
switch-over points between star and triangle are very close together
in time. Longer switch-over times can lead to pump damage.
Recommendation for setting the times for Y- Δ activation:
CAUTION! Risk of property damage!
Risk of damage due to incorrect handling.
• Only carry out the direction of rotation monitoring after the sys-
tem is filled. Even brief dry running will destroy the mechanical
seal.
NOTE:
Use of soft starters is recommended to limit the starting current and
preventing tripping of excess current protection devices.
7.3 Anti-condensation heater
connection We recommend an anti-condensation heater for motors which, due
to climatic conditions, are at a risk of condensation (e.g. stationary
motors in moist atmospheres, or motors exposed to extreme varia-
tions in temperature). Corresponding motor variations, which are
equipped with an anti-condensation heater at the factory, can be
ordered as a special version. The anti-condensation heater is used to
protect the motor windings against condensation water inside the
motor.
• The anti-condensation heater is connected to the terminals HE/HE in
the terminal box (connection voltage: 1~ 230 V/50 Hz).
CAUTION! Risk of property damage!
Risk of damage due to incorrect handling.
• The anti-condensation heater may not be switched on during
motor operation.
8 Commissioning
Safety DANGER! Risk of fatal injury!
Failure to install safety devices on the terminal box or near the
coupling can cause electrical shock or contact with rotating parts,
potentially resulting in life-threatening injuries.
• Before commissioning, all safety devices (such as terminal box
covers or coupling covers) that were removed must be reinstalled.
• Keep a safe distance during commissioning!
WARNING! Danger of injury!
If the pump/system is installed improperly, fluid may be ejected
during commissioning. Individual components may also become
loose.
• Keep a safe distance from the pump during commissioning.
Activation type Mains voltage 3~ 400 V
Y- Δ start
(default)
Remove connection bridges
(Fig. 45)
Start via
Soft starter
Δ connection (Fig. 46)
Table 4: Connection terminal assignment
Motor power Y time to be set
> 30 kW < 5 s