Xylem LOWARA e-SVE - COM (Communication); Unit of Measurement

en – Original instructions
32
LED bar
Status
On
Motor in operation; the speed corresponds to the percentage step represented by
the LEDs ON in the bar (e.g.: 3 LEDs ON = speed 30%)
First LED flashing
Motor in operation; the speed is lower than the absolute minimum, P27
Off
Motor stopped
6.3.4 COM (communication)
Condition 1
• The communication bus protocol is the Modbus RTU protocol; the P50 parameter is set to the
Modbus value
• No optional communication module is used.
LED
Status
Off
The unit cannot detect any valid Modbus messages on the terminals provided for the
communication bus
Green steady
The unit has detected a communication bus on the provided terminals and has
recognised the correct addressing
Flashing green light
The unit has detected a communication bus on the provided terminals and has not
been addressed correctly
From green steady to off
The unit has not detected a valid Modbus RTU message for at least 5 seconds
From green steady to
flashing
The unit has not been addressed correctly for at least 5 seconds
Condition 2
• The communication bus protocol is the BACnet MS/TP protocol; the P50 parameter is set to
the BACnet value
• No optional communication module is used.
LED
Status
Off
The unit has received no valid requests from other BACnet MS/TP devices for at least
5 seconds
On steady
The unit is exchanging information with another BACnet MS/TP device
Condition 3
• A multi-pump control mode is selected (e.g. MSE or MSY)
• No optional communication module is used.
LED
Status
Off
The unit has received no valid requests from other pumps through the multi-pump
BUS for at least 5 seconds
On steady
The unit is exchanging information with another pump through the multi-pump BUS
Condition 4
The optional communication module is being used.
LED
Status
Off
RS485 or wireless connection faulty or missing
Flashing
The unit is exchanging information with the communication module
6.3.5 Unit of measurement
LED on
Measurement active
Notes
10xRPM
Impeller rotation speed
The display shows the speed in 10xRPM
BAR
Hydraulic head
The display shows the value of the head in bar
PSI
The display shows the value of the head in psi