Bell & Gossett 176R0649C Technologic 502 Series Pump Controller - Manual (Page 56)

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ALARM 39, Heatsink sensor
No feedback from the heatsink temperature sen-
sor.
The signal from the IGBT thermal sensor is not
available on the power card. The problem could
be on the power card, on the gate drive card, or
the ribbon cable between the power card and
gate drive card.
WARNING 40, Overload of Digital Output Terminal 27
Check the load connected to terminal 27 or
remove the short-circuit connection. Check
parameter 5-00 Digital I/O Mode and parameter
5-01 Terminal 27 Mode.
WARNING 41, Overload of Digital Output Terminal 29
Check the load connected to terminal 29 or
remove the short-circuit connection. Check
parameter 5-00 Digital I/O Mode and parameter
5-02 Terminal 29 Mode.
WARNING 42, Overload of Digital Output on X30/6 or
Overload of Digital Output on X30/7
For X30/6, check the load connected to X30/6 or
remove the short-circuit connection. For X30/7,
check the load connected to X30/7 or remove
the short-circuit connection.
ALARM 46, Power card supply
The supply on the power card is out of range.
There are three power supplies generated by
the switch mode power supply (SMPS) on the
power card: 24V, 5V, +/- 18V. When powered
with three phase mains voltage, all three sup-
plied are monitored.
WARNING 47, 24V supply low
The 24 VDC is measured on the control card.
The external 24 VDC backup power supply may
be overloaded, otherwise contact your supplier.
WARNING 48, 1.8V supply low
The 1.8 Volt DC supply used on the control card
is outside of allowable limits. The power supply
is measured on the control card.
WARNING 49, Speed limit
The speed is not within the specified range in
parameter 4-11 Motor Speed Low Limit [RPM]
and parameter 4-13 Motor Speed High Limit
[RPM].
ALARM 50, AMA calibration failed
Contact your supplier.
ALARM 51, AMA check U
nom
and I
nom
The setting of motor voltage, motor current, and
motor power is presumably wrong. Check the
settings.
ALARM 52, AMA low I
nom
The motor current is too low. Check the settings.
ALARM 53, AMA motor too big
The motor is too big for the AMA to work.
ALARM 54, AMA motor too small
The motor is too big for the AMA to work.
ALARM 55, AMA parameter out of range
The parameter values found from the motor are
outside acceptable range.
ALARM 56, AMA interrupted by user
The AMA has been interrupted by the user.
ALARM 57, AMA time-out
Try to start the AMA again a number of times,
until the AMA is carried out. Please note that re-
peated runs may heat the motor to a level where
the resistances R
s
and R
r
are increased. In most
cases, however, this is not critical.
ALARM 58, AMA internal fault
Contact your supplier.
WARNING 59, Current limit
The current is higher than the value in param-
eter 4-18 Current Limit.
WARNING 60, External interlock
External interlock has been activated. To resume
normal operation, apply 24 VDC to the terminal
programmed for external interlock and reset the
controller (via serial communication, digital I/O,
or by pressing the reset button on LCP).
WARNING 61, Tracking error
An error has been detected between the calcu-
lated motor speed and the speed measurement
from the feedback device. The function for Warn-
ing/Alarm/Disable is set in parameter 4-30 Motor
Feedback Loss Function, error setting in pa-
rameter 4-31 Motor Feedback Speed Error, and
the allowed error time in parameter 4-32 Motor
Feedback Loss Timeout. During a commission-
ing procedure the function may be effective.
WARNING 62, Output frequency at maximum limit
The output frequency is higher than the value
set in parameter 4-19 Max Output Frequency.
ALARM 63, Mechanical brake low
The actual motor current has not exceeded the
release-brake current within the start-delay time
window.
WARNING 64, Voltage limit
The load and speed combination demands a
motor voltage higher than the actual DC link
voltage.
WARNING/ALARM/TRIP 65, Control card overtem-
perature
Control card overtemperature. (The cutout tem-
perature of the control card is 80° C.)
Table 8-1. Warnings and Alarms (continued)