Operation On The Power Supply Mains; Frequency Of Starts; Operation On A Frequency Inverter; Fluid Handled - KSB Amacan P 500-270 Installation & Operating Manual

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6 Commissioning/Start-up/Shutdown

6.2.1 Operation on the power supply mains

DANGER
Permissible tolerances for operation on mains power exceeded
Explosion hazard!
▷ Never operate an explosion-proof pump (set) outside the specified range.
The maximum permissible deviation in supply voltage is ±10% of the rated voltage.
The voltage difference between the individual phases must not exceed 1 %.

6.2.2 Frequency of starts

CAUTION
Excessive frequency of starts
Risk of damage to the motor!
▷ Never exceed the specified frequency of starts.
To prevent high temperature increases in the motor and excessive loads on the
motor, seal elements and bearings, the frequency of starts shall not exceed 10 starts
per hour.
These values apply to mains start-up (direct or with autotransformer, soft starter).
This limitation does not apply to operation on a frequency converter.
CAUTION
Re-starting while motor is still running down
Damage to the pump set!
▷ Do not re-start the pump set before it has come to a standstill.
▷ Never start up the pump set while the pump is running in reverse.

6.2.3 Operation on a frequency inverter

DANGER
Operation outside the permitted frequency range
Explosion hazard!
▷ Never operate an explosion-proof pump set outside the specified range.
Frequency inverter operation of the pump set is permitted in the frequency range
from 25 to 50 Hz.

6.2.4 Fluid handled

6.2.4.1 Fluid temperature
The pump set is designed for transporting liquids. The pump set is not operational
under freezing conditions.
CAUTION
Danger of freezing!
Damage to the pump set!
▷ Drain the pump set or protect it against freezing.
Amacan P