Bell & Gossett 176R0649C Technologic 502 Series Pump Controller - Manual (Page 57)

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WARNING 66, Heatsink temperature low
This warning is based on the temperature sen-
sor in the IGBT module.
Troubleshooting:
The heatsink temperature measured as 0° C
could indicate that the temperature sensor is
defective, thereby causing the fan speed to
increase to the maximum. If the sensor wire
between the IGBT and the gate drive card is dis-
connected, this warning is produced. Also, check
the IGBT thermal sensor.
ALARM 67, Option module configuration has
changed
One or more options have either been added or
removed since the last power-down.
ALARM 68, Safe stop activated
Safe stop has been activated. To resume normal
operation, apply 24 VDC to terminal 37, then
send a reset signal (via bus, digital I/O, or by
pressing the reset key. See parameter 5-19
Terminal 37 Safe Stop.
ALARM 69, Power card temperature
The temperature sensor on the power card is
either too hot or too cold.
Troubleshooting:
Check the operation of the door fans.
Make sure that the filters for the door fans are
not blocked.
Make sure that the gland plate is properly
installed on IP21 and IP54 (NEMA 1 and NEMA
12) controllers.
ALARM 70, Illegal FC Configuration
The current control board and power board com-
bination is illegal.
WARNING/ALARM 71, PTC 1 safe stop
Safe Stop has been activated from the MCB 112
PTC thermistor card (motor too warm). Normal
operation can be resumed when the MCB 112
applies 24 VDC to T-37 again (when the mo-
tor temperature reaches an acceptable level)
and when the digital input from the MCB 112 is
deactivated. When this happens, a reset signal
is sent (via serial communication, digital I/O, or
by pressing reset button on LCP). Note that if
automatic restart is enabled, the motor may start
when the fault is cleared.
ALARM 72, Dangerous failure
Safe stop with trip lock. Unexpected signal levels
on the safe stop and digital input from the MCB
112 PTC thermistor card.
Warning 73, Safe stop auto restart
Safe stopped. Note that with automatic restart
enabled, the motor may start when the fault is
cleared.
ALARM 79, Illegal power section configuration
The scaling card is the incorrect part number or
not installed. Also, the MK102 connector on the
power card is not installed.
ALARM 80, Drive initialized to default value
Parameter settings are initialized to default set-
tings after a manual reset.
WARNING 81, CSIV corrupt
CSIV file has syntax errors.
WARNING 82, CSIV parameter error
CSIV has failed to record a parameter.
ALARM 91, Analog input 54 wrong settings
Switch S202 must be set in the position OFF
(voltage input) when a KTY sensor is connected
to analog input terminal 54.
ALARM 92, No flow
A no-load situation has been detected in the
system. See parameter group 22-2.
ALARM 93, Dry pump
A no-flow situation and high speed indicate that
the pump has run dry. See parameter group
22-2.
ALARM 94, End of curve
Feedback stays lower than the setpoint which
may indicate leakage in the pipe system. See
parameter group 22-5.
ALARM 95, Broken belt
Torque is below the torque level set for no load,
indicating a broken belt. See parameter group
22-6.
ALARM 96, Start delayed
Motor start has been delayed due to short-cycle
protection active. See parameter group 22-7.
WARNING 97, Stop delayed
Stopping the motor has been delayed due to
short cycle protection is active. See parameter
group 22-7.
WARNING 98, Clock fault
Clock Fault. The time is not set or the RTC clock
(if mounted) has failed. See parameter group
0-7.
WARNING 220, Bypass Overload Trip
Motor overload has tripped. Indicates excess
motor load. Check motor and driven load. To
reset press the OFF/Reset key. Then, to restart
the system, press the Auto ON or Hand ON key.
WARNING 221, Bypass Interlock
Bypass interlock has opened and caused the
motor to stop. Correct the problem. Depending
on the setting of parameter 14-20, the system
will either automatically reset this alarm or re-
quire the OFF/Reset key to be pressed.
Table 8-1. Warnings and Alarms (continued)