Troubleshooting Of Alarms And Errors - Xylem Lowara Smart Pump Series Quick Start Up Manual

en – Original instructions
P26 Max RPM set
P27 Smin time
P28 Ramp 1
P29 Ramp 2
P30 Ramp 3
P31 Ramp 4
P32 Acceleration ramp at startup
P33 Deceleration ramp at shutdown
P34 Configuration of minimum speed
P35 Minimum speed - Duration
P36 Adjustment window
P37 Hysteresis
P38 Speed Lift
P39 Lift Amount
P41 Pressure Sensor Unit Of Measure
P42 Full scale value for pressure Sensor 1 4÷20mA
P44 Zero Pressure Auto-Calibration
P45 Pressure Minimum Threshold
P46 Pressure Minimum Threshold - Delay Time
P47 Pressure Minimum Threshold – Automatic Error Reset
P48 Low water input
P50 Comm Protocol
P51 Communication protocol - Address
P52 Comm Protocol – BAUDRATE
P53 BACnet Device ID Offset
P54 Communication protocol - Configuration
P55 Multipump – Address
P56 Multipump – Max Units
P57 Multipump – Switch Interval
P58 Multipump – Actual Value Increase
P59 Multipump – Actual Value Decrease
P60 Multipump – Enable Speed
P61 Multipump Synchronous – Speed Limit
P62 Multipump Synchronous – Window
P63 Multipump – Priority
P64 Multipump – Revision
P65 Test Run – Time Start
P66 Test Run – Speed
P67 Test Run – Time Duration
P68 Default Values Reload
P69 Avoid Frequent Parameters Saving
= Global parameter, shared by all pumps in the same multi-pump system
()
= Read only
- = Applicable to all units

Troubleshooting of alarms and errors

Code Description
A03 Derating
A05
Data memory alarm
A06 LOW alarm
A15
EEPROM write failure Data memory damaged
A20 Internal alarm
6
Cause
Temperature too high
Data memory corrupted
Lack of water detection (if P48=
ALR)
rpmx10
rpmx10
s
s
s
s
s
s
s
%
%
rpmx10
%
bar/psi
- bar/psi
bar/psi
s
-
-
-
- kbps
-
-
-
h
bar/psi
bar/psi
rpmx10
rpmx10
rpmx10
h
rpmx10
s
-
-
Remedy
 Lower the room temperature
 Lower the water temperature
 Lower the load
1. Reset the default parameters using parameter P68
2. Wait 10 s
3. Restart the pump
If the problem continues, contact Xylem or the Authorised
Distributor
Check the water level inside the tank
Stop the pump for 5 minutes and then restart it again; if
the problem continues, contact Xylem or the Authorised
Distributor
3
3
35
35
2
2
STP
0
10
80
P27
0
bar
16
0
2
ON
ERR
MOD
1
9.6
002
8N1
1
3
24
0.35
0.15
150
100
200
10
NO