Warning LED
Alarm LED
Warning
On
Off
Alarm
Off
On (Flashing)
Trip-Lock
On
On (Flashing)
Table 8.1 Status Indicator Lights Explanations
8.4 Warning and Alarm Definitions
Table 8.2
defines whether a warning is issued before an alarm, and whether the alarm trips the unit or trip locks the unit.
No.
Description
Warning
Alarm/Trip
Alarm/Trip Lock
Parameter Reference
1
10 Volts low
X
2
Live zero error
(X)
(X)
6-01 Live Zero Timeout
Function
4
Mains phase loss
(X)
(X)
(X)
14-12 Function at Mains
Imbalance
5
DC link voltage high
X
6
DC link voltage low
X
7
DC over voltage
X
X
8
DC under voltage
X
X
9
Inverter overloaded
X
X
10
Motor ETR over temperature
(X)
(X)
1-90 Motor Thermal Protection
11
Motor thermistor over temperature
(X)
(X)
1-90 Motor Thermal Protection
12
Torque limit
X
X
13
Over Current
X
X
X
14
Earth (Ground) fault
X
X
X
15
Hardware mismatch
X
X
16
Short Circuit
X
X
17
Control word timeout
(X)
(X)
8-04 Control Timeout Function
18
Start Failed
X
1-77 Compressor Start Max
Speed [RPM], 1-79 Compressor
Start Max Time to Trip,
1-03 Torque Characteristics
23
Internal Fan Fault
X
24
External Fan Fault
X
14-53 Fan Monitor
25
Brake resistor short-circuited
X
26
Brake resistor power limit
(X)
(X)
2-13 Brake Power Monitoring
27
Brake chopper short-circuited
X
X
28
Brake check
(X)
(X)
2-15 Brake Check
29
Drive over temperature
X
X
X
30
Motor phase U missing
(X)
(X)
(X)
4-58 Missing Motor Phase
Function
31
Motor phase V missing
(X)
(X)
(X)
4-58 Missing Motor Phase
Function
32
Motor phase W missing
(X)
(X)
(X)
4-58 Missing Motor Phase
Function
33
Inrush fault
X
X
34
Fieldbus communication fault
X
X
35
Out of frequency range
X
X
36
Mains failure
X
X
37
Phase Imbalance
X
X
38
Internal fault
X
X
Warnings and Alarms
VLT
®
HVAC Drive Operating Instructions
MG11AI02 - VLT
®
is a registered Danfoss trademark
55
8
8
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.ctiautomation.net - Email: [email protected]
