Xylem hydrovar User Manual

P520 ENABLE DLY.
5 sec
Actual Value Output Freq.
Left fct. Up fct. Down fct. Right fct.
It sets the enable delay time: the fixed-speed pump starts after the selected time.
P525 SWITCH DLY.
This parameter only applies to cascade relay!
P525 SWITCH DLY.
5 sec
Actual Value Output Freq.
Left fct. Up fct. Down fct. Right fct.
It sets the switch delay time, thus avoiding repeated switching caused by consumption
variation.
P530 DISABLE FRQ.
This parameter only applies to cascade relay!
P530 DISABLE FRQ.
30 Hz
Actual Value Output Freq.
Left fct. Up fct. Down fct. Right fct.
It sets the frequency to switch off the fixed speed pumps. If the MASTER Inverter goes
below this frequency for longer time than the pre-selected P535 DISABLE DLY. and the
system pressure is higher than P03 EFF.REQ.VAL., the MASTER stops another assist pump.
P535 DISABLE DLY.
This parameter only applies to cascade relay!
P535 DISABLE DLY.
5 sec
Actual Value Output Freq.
Left fct. Up fct. Down fct. Right fct.
It sets the delay time before switching off the assist pumps.
P540 DROP FRQ.
This parameter only applies to cascade relay!
P540 DROP FRQ.
42 Hz
Actual Value Output Freq.
Left fct. Up fct. Down fct. Right fct.
8 Programming
76 HVL 2.015-4.220 Installation, Operation, and Maintenance Manual

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)