Xylem Aquavar - Warnings and Alarms

Bit Hex Dec Alarm word Alarm word 2 Warning word Warning word
2
Extended
Status word
Extended
Status word 2
Alarm Word Extended Status Word
22 00400000 4194304 Fieldbus Fault
(A34)
reserved Fieldbus Fault
(W34)
reserved Protection
mode
notification
Sleep Boost
23 00800000 8388608 24 V Supply
Low (A47)
reserved 24V Supply
Low (W47)
reserved Unused Running
24 01000000 16777216 Mains Failure
(A36)
reserved Mains Failure
(W36)
reserved Unused Drive Bypass
25 02000000 33554432 1.8V Supply
Low (A48)
Current Limit
(W59)
Current Limit
(A59)
reserved Unused Fire Mode
26 04000000 67108864 Brake Resistor
(A25)
reserved Low Temp
(W66)
reserved Unused Pump Protect
(North
America)/
External
Interlock
(International)
27 08000000 134217728 Brake IGBT
(A27)
reserved Voltage Limit
(W64)
reserved Unused Firemode
Limit Exceed
28 10000000 268435456 Option
Change (A67)
reserved Encoder loss
(W90)
reserved Unused FlyStart active
29 20000000 536870912 Drive
Initialized
(A80)
Encoder loss
(A90)
Output freq.
lim. (W62)
BackEMF too
High
Unused
30 40000000 1073741824 Safe Stop
(A68)
PTC
Thermistor
(A74)
Safe Stop
(W68)
PTC Thermist
or (W74)
Unused
31 80000000 2147483648 Mech. brake
low (A63)
Dangerous
failure (A72)
Extended
Status Word
Protection
Mode
7.4 Warnings and alarms
Table 35: Warnings and alarms
Warning/Alarm Description Cause Remedy
1 — 10 V low The control card voltage is below
10 V from terminal 50.
A short in a connected
potentiometer or improper wiring
of the potentiometer.
Remove the wiring from terminal
50. If the warning clears, the
problem is with the customer
wiring.
2 — Sensor Fault
Note: this warning/alarm is not
available when the MCO301
Programmable API option card is
installed and functioning.
This warning or alarm will only
appear if programmed by the user
in [6–01] Sensor Fault Timeout
Function. The signal on one of the
analog inputs is less than 50% of
the minimum value that is
programmed for that input.
Broken wiring or faulty device
sending the signal.
Check the connections on all the
analog input terminals. Control
card terminals 53 and 54 for
signals, terminal 55 common.
General Purpose I/O Option Card
terminals 11 and 12 for signals,
terminal 10 common. Analog I/O
Option Card terminals 1, 3, 5 for
signals, terminals 2, 4, 6 common.
Check that the frequency converter
programming and switch settings
match the analog signal type.
Perform Input Terminal Signal Test
7 Warnings and alarms
138 Aquavar
®
Intelligent Pump Controller - 150 HP to 600 HP INSTRUCTION MANUAL