Johnson Controls VSD Series User Manual

VSD Series Drives User Manual Powered by Eaton Technology
B-2 For more information visit: www.johnsoncontrols.com LIT-1201828
November 2009
9 Undervoltage DC-link voltage is less than the
minimum safe operating voltage
limit
• most probable cause: too low
a utility supply voltage
• VSD Series internal fault
If there was a supply voltage
loss or dip, reset the fault and
restart the VSD Series drive.
Check the supply voltage. If it
was within specification at the
time of the fault, an internal
failure has occurred. Contact
your Johnson Controls
distributor.
10 Input line supervision Input line phase is low or
missing.
Check the utility supply voltage,
cables and connections.
11 Output phase
supervision
Current sensing indicates that
there is no current in one motor
phase
Check the motor cables,
connections and motor.
12 Brake chopper
supervision
• no brake resistor installed
• brake resistor is broken
• brake chopper failure
Check the brake resistor. If the
resistor is ok, the chopper is
faulty. Contact your Johnson
Controls distributor.
13 VSD Series
undertemperature
Heatsink temperature is under
-10°C
Provide supplemental heating or
relocate the VSD Series drive to
a warmer location.
14 VSD Series
overtemperature
Heatsink temperature is over
90°C.
An overtemperature warning is
issued when the heatsink
temperature exceeds 85°C, a
fault occurs at 90°C. Check for
the correct amount and
unrestricted flow of cooling air.
Check the heatsink for dust or
dirt buildup.
Check the highest ambient
temperature level.
Make sure that the switching
frequency is not set too high in
relation to the ambient
temperature and motor load.
15 Motor stalled • motor or load mechanical
failure
• load too high
• stall parameter settings
incorrect
Check the motor, mechanical
system and load level.
Confirm the stall parameter
settings.
16 Motor overtemperature • motor is overloaded
• motor overheating has been
detected by VSD Series motor
temperature model
Decrease the motor load.
If no motor overload exists,
check the temperature model
parameters.
17 Motor underload • mechanical or load problem
• underload parameter settings
incorrect
Check the motor, check for a
loose belt, broken coupling or
load problems.
Confirm underload parameter
settings.
Table B-1: Fault Codes, continued
Fault
Code Fault Possible Cause Solution

Johnson Controls VSD Series Specifications

General

Brand	Johnson Controls
Model	VSD Series
Category	DC Drives
Language	English