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VLT® HVAC Drive Programming Guide
Parameter Description
3.16.6 16-9* Diagnosis Read-Outs
16-96 Maintenance Word
Range:
16-90 Alarm Word
Range:
0*
Function:
[0 - 4294967295 ] View the alarm word sent via the serial
communication port in hex code.
16-91 Alarm Word 2
Range:
0*
Function:
[0 - 4294967295 ] View the alarm word 2 sent via the
serial communication port in hex code.
16-92 Warning Word
Range:
0*
Bit 10: Drive cooling fan
Bit 11: Drive system health check
[0 - 4294967295 ] View the warning word sent via the
serial communication port in hex code.
Bit 13: Maintenance Text 0
Bit 14: Maintenance Text 1
Bit 15: Maintenance Text 2
Bit 16: Maintenance Text 3
Bit 17: Maintenance Text 4
Positio
n3⇒
Positio
n2⇒
16-94 Ext. Status Word
Range:
0*
Valve
Fan
Pump Motor
bearing bearing bearing
s
s
s
Pump
seals
Temper Flow Pressur
ature transmi
e
transmi
tter
transmi
tter
tter
Function:
[0 - 4294967295 ] View the warning word 2 sent via the
serial communication port in hex code.
Drive
Drive
system cooling
health
fan
check
Filter
Positio
Function:
[0 - 4294967295 ] Returns the extended status word sent
via the serial communication port in hex
code.
3 3
Bit 12: Warranty
n 4⇒
16-93 Warning Word 2
0*
•
•
•
•
•
•
•
•
Positio
Function:
Range:
Function:
Fan
belt
Warrant
y
n 1⇒
0hex
-
-
-
-
1hex
-
-
-
+
2hex
-
-
+
-
16-95 Ext. Status Word 2
3hex
-
-
+
+
Range:
4hex
-
+
-
-
5hex
-
+
-
+
6hex
-
+
+
-
7hex
-
+
+
+
8hex
+
-
-
+
0*
Function:
[0 - 4294967295 ] Returns the extended warning word 2
sent via the serial communication port
in hex code.
16-96 Maintenance Word
9hex
+
-
-
Range:
Ahex
+
-
+
-
Bhex
+
-
+
+
Chex
+
+
-
+
0
*
[0 4294967295 ]
Function:
Readout of the Preventive Maintenance
Word. The bits reflect the status for the
programmed Preventive Maintenance Events
in parameter group 23-1*. 13 bits represent
combinations of all the possible items:
•
•
•
•
•
•
•
•
•
•
Dhex
+
+
-
Ehex
+
+
+
-
Fhex
+
+
+
+
Bit 0: Motor bearings
Bit 1: Pump bearings
Bit 2: Fan bearings
Bit 3: Valve
Bit 4: Pressure transmitter
Example:
The Preventive Maintenance Word shows
040Ahex.
Position
1
2
3
4
hex-value
0
4
0
A
Bit 5: Flow transmitter
Bit 6: Temperature transmitter
Bit 7: Pump seals
Bit 8: Fan belt
Bit 9: Filter
MG11CD02 - VLT® is a registered Danfoss trademark
The first digit 0 indicates that no items from
the fourth row requires maintenance
The second digit 4 refers to the third row
indicating that the Drive Cooling Fan requires
maintenance
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