Johnson Controls VSD Series User Manual

VSD Series Drives User Manual Powered by Eaton Technology
B-4 For more information visit: www.johnsoncontrols.com LIT-1201828
November 2009
43 Encoder fault Note: the exceptional Fault data
record. See Active Fault Menu
for more information. Additional
codes:
1 Encoder 1 channel A is
missing
2 Encoder 1 channel B is
missing
3 Both encoder 1 channels are
missing
4 Encoder reversed
Check encoder channel
connections.
Check the encoder board.
50 Analog input I
in
< 4 mA
(for signal range 4 to 20
mA)
Current at the analog input is
< 4 mA
• control cable is broken or
loose
• signal source has failed
Check the current loop, signal
source and wiring.
51 External fault Digital input set as an external
fault input has been triggered.
Check source of trigger.
52 Keypad communication
fault
The connection between the
control keypad and the VSD
Series drive has been lost.
Check keypad connection and
keypad cable.
53 Communication bus
fault
The data connection between
the communication bus master
and the communication bus
board has failed
Check installation.
If installation is correct, contact
your Johnson Controls
distributor.
54 Slot fault Defective option board or slot Check that the board is properly
installed and seated in slot. If
installation is correct, contact
your Johnson Controls
distributor.
82 BypassOverLoad The motor has been overloaded
while connected to the bypass
Decrease the motor load.
Disable the Current Imbalance
feature – see the IT. manual.
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