Xylem hydrovar User Manual

P270 MOTOR POLES
2
Actual Value Output Freq.
Left fct. Up fct. Down fct. Right fct.
P275 AMPI
NOTICE:
• For the best adaptation of HYDROVAR, run AMPI on a cold motor
• AMPI cannot be performed while the motor runs
• AMPI cannot be performed on a motor with a bigger power rating than HYDROVAR
that is, when a 5.5 kW motor is coupled with a 4 kW drive
• Avoid generating external torque during AMPI.
This parameter activates the Automatic Motor Parameter Identification; possible settings
are "Off" (AMPInot active), "Full" or "Reduced" (procedure to be performed only in case
LC filters are applied on the motor cable).
For this parameter please note that, once entered into edit mode (by pressing the
provided push button), the user can confirm the new value by pressing for 3 sec the right
(►) push button.
P275 AMPI
Full
Actual Value Output Freq.
Left fct. Up fct. Down fct. Right fct.
Once the AMPI procedure is activated (when either "Full" or "Reduced" option is
selected), it takes up to 3 min for the identification of the motor: during this period
HYDROVAR prevents the user from any action ("Running" message on the display, push-
buttons deactivated).
Possible outcomes are "OK" (AMPI succeeded in self-configuring the motor) or "Fault"
(AMPI result unsuccessful): once one of these two messages is displayed, HYDROVAR
unlocks the push buttons to standard related functions.
P280 SWITCHING CONTROL
G
P280 SWITCHING CONTROL
HVC
Actual Value Output Freq.
Left fct. Up fct. Down fct. Right fct.
Sets the motor control method. Possible settings are "V/f" or "HVC" (default)
"V/f" represents the Scalar Control: the open loop volts/hertz control of an induction
motor is by far most popular method of speed control because of its simplicity.
"HVC" represents the HYDROVAR Vector Control: this method improves dynamic and
stability, both when speed reference is changed and in relation to the load torque. This
type of control is adaptive to motor load and adaptation to speed and torque changes is
less than 3 milliseconds. Motor torque can remain constant regardless to speed changes.
8 Programming
HVL 2.015-4.220 Installation, Operation, and Maintenance Manual 65

Xylem hydrovar Specifications

General

Frequency	50/60 Hz
Control type	Variable speed drive
Protection class	IP55
Communication protocols	Modbus
Relative Humidity	5% - 95% (non-condensing)
Altitude	Up to 1000 m without derating
Input voltage	200-690 V AC
Storage Temperature	-25°C to +70°C (-13°F to 158°F)