Taco SKV SelfSensing

Taco® SKV
69
Troubleshooting
• Check that the ambient operating temperature is
within limits.
• Check for clogged filters.
• Check fan operation.
• Check the control card.
WARNING 66, Heatsink temperature low
The adjustable frequency drive is too cold to operate.
This warning is based on the temperature sensor in the
IGBT module. Increase the ambient temperature of the
unit. Also, a trickle amount of current can be supplied to
the adjustable frequency drive whenever the motor is
stopped by setting 2-00 DC Hold/Preheat Current at 5%
and 1-80 Function at Stop.
ALARM 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 adjustable frequency
drive.
ALARM 68, Safe stop activated
Loss of the 24 VDC signal on terminal 37 has caused the
adjustable frequency drive to trip. To resume normal
operation, apply 24 VDC to terminal 37 and reset the
adjustable frequency drive.
ALARM 69, Power card temperature
The temperature sensor on the power card is either too
hot or too cold.
ALARM 70, Illegal FC configuration
The control card and power card are incompatible. Con-
tact your supplier with the typecode of the unit from the
nameplate and the part numbers of the cards to check
compatibility.
ALARM 80, Drive initialized to default value
Parameter settings are initialized to default settings after
a manual reset. Reset the unit to clear the alarm.
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 adjustable frequency drive after the
fault has been cleared.
302-365, Effective: June 5, 2017
© 2017 Taco, Inc.
ALARM 93, Dry pump
A no-flow condition in the system with the frequency con-
verter operating at high speed may indicate a dry pump.
22-26 Dry Pump Function is set for alarm. Troubleshoot
the system and reset the frequency converter after the
fault has been cleared.
ALARM 94, End of curve
Feedback is lower than the setpoint. This may indicate
leakage in the system. 22-50 End of Curve Function is
set for alarm. Troubleshoot the system and reset the
adjustable frequency drive after the fault has been
cleared.
ALARM 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 adjustable
frequency drive after the fault has been cleared.
ALARM 96, Start delayed
Motor start has been delayed due to short-cycle protec-
tion. 22-76 Interval between Starts is enabled. Trouble-
shoot the system and reset the adjustable frequency
drive after the fault has been cleared.
WARNING 97, Stop delayed
Stopping the motor has been delayed due to short cycle
protection. 22-76 Interval between Starts is enabled.
Troubleshoot the system and reset the adjustable fre-
quency drive after the fault has been cleared.
WARNING 98, Clock fault
Time is not set or the RTC clock has failed. Reset the
clock in 0-70 Date and Time.
WARNING 200, Fire mode
This indicates the adjustable frequency drive is operating
in fire mode. The warning clears when fire mode is
removed. See the fire mode data in the alarm log.
WARNING 201, Fire mode was active
This indicates the adjustable frequency drive had entered
fire mode. Cycle power to the unit to remove the warning.
See the fire mode data in the alarm log.
WARNING 202, Fire mode limits exceeded
While operating in fire mode one or more alarm condi-
tions has been ignored which would normally trip the unit.
Operating in this condition voids unit warranty. Cycle
power to the unit to remove the warning. See the fire
mode data in the alarm log.