Warning/Alarm List - Danfoss ADAP-KOOL AKD 102 Operating Instructions Manual

Troubleshooting
Bit Hex
0 00000001
1 00000002
9 00000200
10 00000400
11 00000800
Table 8.4 Compressor specific Alarms and Warnings

8.1.1 Warning/Alarm list

WARNING 1, 10 Volts low:
The 10 V voltage from terminal 50 on the control card is
below 10 V.
Remove some of the load from terminal 50, as the 10 V
supply is overloaded. Max. 15 mA or minimum 590 ohm.
WARNING/ALARM 2, Live zero error:
The signal on terminal 53 or 54 is less than 50% of the
value set in par. 6-10, par. 6-12, par. 6-20, or par. 6-22
respectively.
8 8
WARNING/ALARM 3, No motor:
No motor has been connected to the output of the
frequency converter.
WARNING/ALARM 4, Mains phase loss:
A phase is missing on the supply side, or the mains
voltage imbalance is too high.
This message also appears in case of a fault in the input
rectifier on the frequency converter.
Check the supply voltage and supply currents to the
frequency converter.
WARNING 5, DC link voltage high:
The intermediate circuit voltage (DC) is higher than the
overvoltage limit of the control system. The frequency
converter is still active.
WARNING 6, DC link voltage low
The intermediate circuit voltage (DC) is below the
undervoltage limit of the control system. The frequency
converter is still active.
WARNING/ALARM 7, DC over voltage:
If the intermediate circuit voltage exceeds the limit, the
frequency converter trips after a time.
Connect a brake resistor. Extend the ramp time
Possible corrections:
Connect a brake resistor
Extend the ramp time
Activate functions in par. 2-10
Increase par. 14-26
112
®
ADAP-KOOL Drive Operating Instructions
Description of Alarm Word 2 and Warning Word 2
Dec Alarm Word 2
1
2
512 Discharge Temperature High
1024 Start Limit
2048 Speed Limit
WARNING/ALARM 8, DC under voltage:
If the intermediate circuit voltage (DC) drops below the
"voltage warning low" limit (see table above), the
frequency converter checks if 24 V backup supply is
connected.
If no 24 V backup supply is connected, the frequency
converter trips after a given time depending on the unit.
To check whether the supply voltage matches the
frequency converter, see Specifications.
WARNING/ALARM 9, Inverter overloaded:
The frequency converter is about to cut out because of an
overload (too high current for too long). The counter for
electronic, thermal inverter protection gives a warning at
98% and trips at 100%, while giving an alarm. Reset
cannot be performed before counter is below 90%.
The fault is that the frequency converter is overloaded by
more than 100% for too long.
WARNING/ALARM 10, Motor ETR over temperature:
According to the electronic thermal protection (ETR), the
motor is too hot. It can be chosen if the frequency
converter is to give a warning or an alarm when the
counter reaches 100% in par. 1-90. The fault is that the
motor is overloaded by more than 100% for too long.
Check that the motor par. 1-24 is set correctly.
WARNING/ALARM 11, Motor thermistor over temp:
The thermistor or the thermistor connection is discon-
nected. Choose if the frequency converter is to give a
warning or an alarm when the counter reaches 100% in
par. 1-90. Check that the thermistor is connected correctly
between terminal 53 or 54 (analog voltage input) and
terminal 50 (+ 10 Volts supply), or between terminal 18 or
19 (digital input PNP only) and terminal 50. If a KTY sensor
is used, check for correct connection between terminal 54
and 55.
MG.11.L4.02 - ADAP-KOOL
Warning Word 2
Start Delayed
Stop Delayed
Discharge Temperature High
Alarm/warning limits:
Voltage ranges 3 x 200 - 240 V
Undervoltage
Voltage warning low
Voltage warning high (w/o
brake - w/brake)
Overvoltage
The voltages stated are the intermediate circuit voltage of the frequency
converter with a tolerance of ± 5 %. The corresponding mains voltage is
the intermediate circuit voltage (DC-link) divided by 1.35
®
Drive
3 x 380 - 480 V
[VDC] [VDC]
185 373
205 410
390/405 810/840
410 855