Xylem Lowara e-LNEEE Manual De Instalación Y Funcionamiento página 18

en – Original instructions
Comm. Bus B2 18 RS485 port
A2 19 RS485 port
GND 20 Electronic
I/O terminals (versions 3~)
Item Description
Fault signal C 25 COM - error
status relay
NO 24 NO Status relay
(error)
Motor C 23 Common
running contact
signal
NO 22 Normally open
contact
Auxiliary 15V 21 Auxiliary voltage
Voltage supply +15 VDC
Supply
Analog input S+ 20 Actuator mode
0-10 V input
0-10V
S- 19 GND for 0-10 V
input
External P1+ 18 Power supply
Pressure external sensor
sensor [also +15 VDC
Differential]
P1- 17 External sensor
4-20 mA input
External P2+ 16 Power supply
pressure external sensor
sensor +15 VDC
P2- 15 Sensor 4-20 mA
input
External Start 14 External
Start/Stop ON/OFF input
Stop 13 External
ON/OFF input
reference
External LoW+ 12 Lack water input Default short
Lack of
LoW- 11 Low water
18
RS 485 port2
2: RS485-2N for external
B (-) active comm.
only with
optional
module
2: RS485-2P
A (+) active
only with
optional
module
GND
Comments
In case of
power cables:
use the M20
cable gland
Closed: error
Open: no error
or unit off
In case of
power cables:
use the M20
cable gland
Open: motor in
operation
Closed: motor
not in
operation
15VDC, Ʃ
max. 100 mA
0÷10 VDC
GND,
electronic
ground (for
S+)
15VDC, Ʃ
max. 100 mA
4÷20 mA
15VDC, Ʃ
max. 100 mA
4÷20 mA
Default short
circuited Pump
enabled to
RUN
circuited Lack
Water reference
Comm. Bus B2 10 RS485 port 2:
RS485-2N B (-)
active only with
optional module
A2 9 RS485 port 2:
RS485-2P A (+)
active only with
optional module
GND 8 Electronic GND
Comm. Bus B1 7 RS485 port 1:
RS485-1N B (-)
5 Operation
In case of co-existance of two or more of the following
conditions:
• high ambient temperature
• High liquid temperature
• duty points insisting on unit maximum power
• persisting undervoltage of mains, the lifespan of the
unit could be shortened and/or derating could occur.
Contact Xylem or the Authorised Distributor for
further information.
Also refer to the "Quick Startup Guide" and the
"Additional Installation, Operation and Maintenance
Instructions" of e-LNEE, e-LNES, e-LNTE and e-LNTS
pumps.
5.1 Wait times
WARNING: Electrical hazard
Contact with electric components may cause
death, even after the unit has been switched
off. Before any interventions on the unit, the
network voltage and any other input voltages
must be disconnected for the minimum time
indicated in the table.
Wait times
Mode (power supply)
Single-phase
Three-phase
WARNING: Electrical hazard
Frequency converters contain DC-link
capacitors that can remain charged even
when the frequency converter is not powered.
To avoid electrical hazards:
of water detection:
enabled
RS 485 port2
for external
comm.
ACT, HCS
control mode:
RS 485 port1
for external
comm.
MSE, MSY
control mode:
RS 485 port 1
for multi-pump
systems
Minimum waiting
time [min]
4
5