Xylem HYDROVAR HV 4.150 / 4.185 / 4.220 - Manual (Page 96)

96
Reset:
• cutting off the power supply for >60 seconds
• 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
LACK OF WATER
ERROR 21
Low water contact
(X3/11-12) is opened
(just active if motor is running)
• incoming pressure or min. level too
low
• bridge X3/11-12, if there is no ext.
low water protection
• adjust Parameter DELAY TIME
[0610] if the failure happens only
for short time
Reset: • Automatically if low water contact (X3/11-12) will be closed!
MIN. THRESHOLD
ERROR 22
defined value of parameter
MIN.THRESHOLD [0605] was
not reached during the pre-
selected DELAY-TIME [0610]
• check booster unit, adjust
parameter DELAY TIME [0610]
• Parameter ERROR RESET [0615] set
to ON, to enable 5 restarts
(e.g. in empty system)
FAILURE SENSOR 1
ACT. VAL. SENSOR 1
ERROR 23
Sensor signal on
terminals X3/2 <4mA
active Sensor:
WARNING (20 sec.)-> ERROR
non-active sensor: WARNING
• ACTUAL VALUE signal (pressure
transducer) faulty
• wrong connection
• Sensor or cable fault
• check configuration of the sensors
in submenu SENSORS [0400]
FAILURE SENSOR 2
ACT. VAL. SENSOR 2
ERROR 24
Sensor signal
on terminals X3/4 <4mA
active Sensor:
WARNING (20 sec.)-> ERROR
non-active Sensor: WARNING
• ACTUAL VALUE signal (pressure
transducer) faulty
• wrong connection
• Sensor or cable fault
• check configuration of the sensors
in submenu SENSORS [0400]
SETPOINT 1 I<4mA
SETPOINT 1 I<4mA
ERROR 25
Current signal input of required
values is active, but no signal
4-20mA is connected
WARNING (20 sec.)-> ERROR
• check external analogue signal on
terminals X3/17-18
• check configuration of the required
values in Submenu REQUIRED
VALUES [0800]
SETPOINT 2 I<4mA
SETPOINT 2 I<4mA
ERROR 26
Current signal input of required
values is active, but no signal
4-20mA is connected
WARNING (20 sec.)-> ERROR
• check external analogue signal on
terminals X3/22-23
• check configuration of the required
values in Submenu REQUIRED
VALUES [0800]
S
S