en
– Original Instructions
34
the sensor signal is out of the permitted tolerance.
P48 Lack of liquid input [DIS, ALR, ERR]
Enabling/disabling of the management of the lack of
liquid at the input (see par. 4.3.3, terminals 13 and 14).
It defines the behaviour of the unit when the lack of
water input is enabled and the switch is open:
DIS
(DIS): the unit does not manage the
information from the "lack of liquid" input"
ALr
(ALr): the unit reads the "lack of liquid" input
(enabled) and upon opening of the circuit breaker
reacts by displaying the A06 rotary alarm and
keeping the motor in operation
Err
(Err): The unit reads the "lack of liquid" input
(enabled) and upon opening of the circuit breaker
reacts by stopping the motor and generating the
corresponding E11 error. The error condition is
removed when the switch closes again and the
motor is started.
Default: ERR.
6.5.6 RS485 Interface Parameters
No. Parameter
Unit of
measurement
Description
P50 Communication protocol [MOD,
BAC]
This parameter selects the specific protocol on the
communication port:
NOD
(MOD): Modbus RTU
BAC
(BAC): BACnet MS/TP.
Default: MOD.
P51 Communication protocol -
Address [1÷247]/[0÷127]
This parameter sets the desired address for the unit,
when connected to an external device, depending on
the protocol selected in P50:
MOD: any value in the 1÷247 range
BAC: any value in the 0÷127 range.
P52 Comm Protocol – BAUDRATE [4.8,
9.6, 14.4, 19.2, 38.4, 56.0, 57.6
KBPS]
kbps
This parameter sets the desired baud rate for the
communication port.
Default: 9.6 kbps.
P53 BACnet Device ID Offset [0÷999]
This parameter sets the hundreds, tens and units of
the BACnet Device ID.
Default: 002.
Device ID default: 84002.
P54 Comm Protocol – Configuration
[
8N1
,
8N2
,
8E1
,
8o1
]
This parameter sets the length of the data bits, the
parity and the length of the STOP bits.
Default: 8N1
6.5.7 Multi-pump twin adjustment mode configuration parameters
No. Parameter
Unit of
measurement
Description
P57 Switch
interval
hours
Setting of the forced switching interval of the pump in operation in
alternated adjustment mode (P39 =
ALt
)
Default: 24
