72
S
S
• Incoming pressure or minimum level
too low
lacK oF Water
Low water contact
• Bridge X3/11-12, if there is no ext.
error 21
(X3/11-12) is opened
low water protection
(only active if motor is running) • Adjust Parameter DELAY TIME [0610]
if the failure happens only for a
short time
reset:
• Automatically if low water contact (X3/11-12) is closed!
Defined value of parameter
• Check booster unit, adjust
Min. tHresHold
MIN.THRESHOLD [0605] was
parameter DELAY TIME [0610]
error 22
not reached during the
• Parameter ERROR RESET [0615] set
preselected DELAY-TIME [0610] to ON, to enable 5 restarts
Sensor signal on terminals
• ACTUAL VALUE signal (pressure
Failure sensor 1
X3/2 <4mA
transducer) faulty
Active Sensor:
• Poor connection
act. Val. sensor 1
WARNING (20 sec.)-> ERROR
• Sensor or cable fault
error 23
Non-active sensor: WARNING
• check configuration of the sensors
in submenu SENSORS [0400]
Sensor signal on terminals
• ACTUAL VALUE signal (pressure
Failure sensor 2
X3/2 <4mA
transducer) faulty
Active Sensor:
• Poor connection
act. Val. sensor 2
WARNING (20 sec.)-> ERROR
• Sensor or cable fault
error 24
Non-active sensor: WARNING
• check configuration of the sensors
in submenu SENSORS [0400]
Current signal input of required
• Check external analogue signal on
setpoint 1 i<4ma
values is active, but no signal
terminals X3/17-18
4-20mA is connected
• Check configuration of the required
setpoint 1 i<4ma
WARNING (20 sec.)-> ERROR
values in Submenu REQUIRED
error 25
VALUES [0800]
Current signal input of required
• Check external analogue signal on
setpoint 2 i<4ma
values is active, but no signal
terminals X3/22-23
4-20mA is connected
• Check configuration of the required
setpoint 2 i<4ma
WARNING (20 sec.)-> ERROR
values in Submenu REQUIRED
error 26
VALUES [0800]
• Cut off power supply for > 60 seconds.
reset:
• Manual reset by closing external ON/OFF (Terminals X3/7-8)
• Manual reset by pressing and simultaneously for about 5 seconds
• Auto-reset possible if ERROR-RESET [0615] is set to ON
Failure MessaGes
