Warnings And Alarms - Danfoss VLT Series Quick Manual

Hvac basic drive cascade controller
Hide thumbs Also See for VLT Series:
Table of Contents

Advertisement

Quick Guide

1.7 Warnings and Alarms

Alarm/
Warning
Fault
Bit
number
Number
Fault text
2
16
Live zero error
4
14
Mains ph. loss
7
11
DC over volt
8
10
DC under volt
Inverter
9
9
overload
Motor ETR
10
8
over
11
7
Motor th over
13
5
Over Current
14
2
Earth Fault
16
12
Short Circuit
17
4
Ctrl.word TO
24
50
Fan Fault
30
19
U phase loss
31
20
V phase loss
32
21
W phase loss
38
17
Internal fault
Overload on
Terminal 27,
40
10
Digital Output
Overload on
Terminal 29,
41
11
Digital Output
44
28
Earth Fault
Gate drive
46
voltage fault
Aux 24 V
47
supply low
AMA
Calibration
50
failed
AMA
51
15
Unom,Inom
52
AMA low Inom
AMA big
53
motor
®
VLT
HVAC Basic Drive Cascade Controller Quick Guide
Trip
Warning Alarm
locked Cause of problem
Signal on terminal 53 or 54 is less than 50% of value set in
6-10 Terminal 53 Low Voltage, 6-12 Terminal 53 Low Current,
6-20 Terminal 54 Low Voltage or 6-22 Terminal 54 Low Current. See
X
X
also parameter group 6-0* Analog I/O Mode.
Missing phase on supply side or too high voltage imbalance.
X
X
X
Check supply voltage. See 14-12 Function at Mains Imbalance.
X
X
Intermediate circuit voltage exceeds limit.
Intermediate circuit voltage drops below "voltage warning low"
X
X
limit.
X
X
More than 100% load for too long.
Motor is too hot due to more than 100% load for too long. See
X
X
1-90 Motor Thermal Protection.
Thermistor or thermistor connection is disconnected. See
X
X
1-90 Motor Thermal Protection.
X
X
X
Inverter peak current limit is exceeded.
X
X
Discharge from output phases to ground.
X
X
Short-circuit in motor or on motor terminals.
No communication to frequency converter. See parameter group
X
X
8-0* Comm. General Settings.
X
X
The fan is not working (Only on 400 V 30-90 kW units).
Motor phase U is missing. Check the phase. See 4-58 Missing Motor
X
X
Phase Function.
Motor phase V is missing. Check the phase. See 4-58 Missing Motor
X
X
Phase Function.
Motor phase W is missing. Check the phase. See 4-58 Missing
X
X
Motor Phase Function.
X
X
Contact your local Danfoss supplier.
X
Overload on Terminal 27, Digital Output.
X
Overload on Terminal 29, Digital Output.
X
X
Discharge from output phases to ground.
X
X
X
X
X
X
Contact your local Danfoss supplier.
The setting of motor voltage, motor current and motor power is
X
presumably wrong. Check the settings.
X
The motor current is too low. Check the settings.
X
The motor is too big for the AMA to be carried out.
®
MG18F402 - VLT
is a registered Danfoss trademark
1
1
27

Advertisement

Table of Contents
loading

Table of Contents