Xylem IM255 AQUAVAR Intelligent Pump Controller - Manual (Page 119)

Warning/Alarm Description Cause Remedy
66 — Heatsink temperature low The frequency converter is too cold
to operate. This warning is based
on the temperature sensor in the
IGBT module.
Increase the ambient temperature
of the unit.
A trickle amount of current can be
supplied to the frequency
controller whenever the motor is
stopped by setting [2–00] DC
Hold/Preheat Current at 5% and
[1–80] Function at Stop.
67 — Option module configuration
has changed
One or more options have either
been added or removed since the
last power down.
Check that the configuration
change is intentional and reset the
frequency controller.
68 — Safe stop activated Loss of the 24 VDC signal on
terminal 37 has caused the
frequency controller to trip.
To resume normal operation,
apply 24 VDC to terminal 37 and
reset the frequency controller.
69 — Power card temperature The temperature sensor on the
power card is either too hot or too
cold.
Check that the ambient operating
temperature is within limits.
Check for clogged filters.
Check fan operation.
Check the power card.
70 — Illegal FC configuration The control card and power card
are incompatible.
Contact your supplier with the
typecode of the unit from the
80 — Drive initialized to default
value
Parameter settings are initialized
to default settings after a manual
reset.
Reset the unit to clear the alarm.
92 — No flow A no-flow condition has been
detected in the system.
[22–23] No-Flow Function is set for
alarm.
Troubleshoot the system and reset
the frequency converter after the
fault has been cleared.
93 — No Water/Loss of Prime A low power condition in the
system with the frequency
converter operating at high speed
may indicate a the pump is out of
water or has lost prime.
[22–26] No Water/Loss of Prime
Function is set for alarm. The [22–
39] No Water/Loss of Prime Limit
is set too high.
Troubleshoot the system and reset
the frequency converter after the
fault has been cleared.
94 — Under Pressure The system pressure is below the
Under Pressure limit (Under
Pressure Limit = Setpoint [22–25]
Under Pressure Difference).
This may indicate leakage in the
system. [22–50] Under Pressure
Function is set for alarm.
Troubleshoot the system, and
reset the frequency converter after
the fault has been cleared.
95 — Broken belt Torque is below the torque level
set for no load, indicating a broken
belt.
[22–60] Broken Belt Function is
set for alarm.
Troubleshoot the system and reset
the frequency converter after the
fault has been cleared.
96 — Start delayed Motor start has been delayed due
to short-cycle protection.
[22–76] Interval between Starts is
enabled.
Troubleshoot the system and reset
the frequency converter after the
fault has been cleared.
97 — Stop delayed Stopping the motor has been
delayed due to short cycle
protection.
[22–76] Interval between Starts us
enabled.
Troubleshoot the system and reset
the frequency converter after the
fault has been cleared.
98 — Clock fault Time is not set or the RTC clock has
failed.
Reset the clock in [0–70] Date and
Time.
200 — Fire mode This indicates the frequency
controller is operating in fire
mode.
Cycle power to the unit to remove
the warning. See the fire mode
data in the alarm log on the
controller.
201 — Fire mode was active This indicates the frequency
controller had entered fire mode.
Cycle power to the unit to remove
the warning. See the fire mode
data in the alarm log on the
controller.
Warnings and alarms
Aquavar ® Intelligent Pump Controller INSTRUCTION MANUAL 117