Control Techniques COMMANDER SE

80 Commander SE Advanced User Guide
Issue Number: 4
This flag is set if any of the drive alarms are active, i.e. Drive temperature alarm, Overload alarm or Dynamic brake alarm.
10.19 = 10.18 or 10.17 or 10.12.
Parameter 10.20 is the most recent trip and 10.29 the oldest. When a new trip occurs all the parameters move down one, the
new trip is put in 10.20 and the oldest trip disappears from the bottom. Possible trips are:
10.19 General drive alarm
Ú
0 or 1
Ö
RO Bit P
10.20 Last trip
10.21 Second last trip
10.22 Third last trip
10.23 Fourth last trip
10.24 Fifth last trip
10.25 Sixth last trip
10.26 Seventh last trip
10.27 Eighth last trip
10.28 Ninth last trip
10.29 Tenth last trip
Ú
0 ~ 200
Ö
RO Uni Txt S P
Trip Code
Trip
Number
Condition Possible Cause
UU 1 DC link under voltage
Low AC supply voltage
Low DC link voltage when supplied by external DC
power supply
OU 2 DC link over voltage
Excessive inertia in the machine during deceleration
Deceleration rate set too fast for inertia of machine
OI.AC** 3 AC instantaneous over current trip
Insufficient ramp times
Phase to phase or phase to earth short-circuit at
drive output
Drive requires autotuning to motor or motor
connections changed, re-autotune drive to motor
(see parameter 5.12)
OI.br** 4 Overcurrent on braking IGBT
Excessive current in braking resistor
Braking resistor value too small
(Does not apply to Size 1 units)
Et 6 External trip External trip terminal opened (when programmed)
O.SP 7 Over speed
Excessive motor speed (typically caused by the
mechanical load driving the motor) Standard ramp
voltage set too low, see parameter 2.08
tunE 18 Auto-tune failure Motor loaded or no motor connected
It.br 19 Ixt on braking resistor
Excessive braking resistor energy
(Does not apply to Size 1 units)
It.AC 20 Motor overload on current x time
Too much mechanical load
High impedance phase to phase or phase to earth
short circuit at drive output drive requires autotuning
to motor. Motor or motor connections changed, re-
autotune drive to Motor (see parameter 5.12)
Oht1 21 Overheat Overheat thermal model
Oht2† 22 Overheat (heatsink thermistor)
Temperature exceeds 95°C (203°F), 100°C (212°C)
for Size 4
th 24 Over temperature (Motor thermistor) Excessive motor temperature
O.Ld1* 26 +24V or digital output overload Excessive load or short circuit on +24V output