User`s manual
CHAPTER 5.0 Functional Overview  5-54 
CDS7324 (FORMERLY LSF-0819)   
Rev. A  INSTALLATION & USER’S MANUAL 
A list of warnings and faults that should be indicated are detailed in Tables 5.42 and 5.43. 
Display Warning Description  Drive Reaction 
. 
Current limiting Active : 
Due to: Thermal Foldback, Manual Mode or I
2
t limiting 
Current limited 
U1  High Power Not Ready – softstart mode.  Drive will not enable 
U2  Motor Thermal Warning : 
This warning indicates that the motor winding temperature is 
within 10% of the motor max temperature. 
Current limited 
U3  Power Amplifier Thermal Warning: 
This warning indicates that the power transistor heatsink 
temperature is within 10% of the bridge maximum temperature. 
Current limited 
U4  Regeneration Power Warning : 
This warning indicates that the power dissipated in the regen 
resistor(s) is within 10% of the continuous capability of the 
resistor(s). 
None 
U5  Position Tracking Warning : 
This warning indicates that the position error has exceeded a 
pre-set threshold. This error will only be present when the drive 
is in position mode. 
None 
U6  Limit Switch Warning :   
This warning indicates that either clockwise or counter clockwise 
limit switch has become active. 
Cannot move in particular 
direction. 
U7  24V Backup Supply Warning :   
This warning indicates that Logic supply is below 18 Volts, or 
greater than 32 Volts. 
None 
U8 Manual Mode:  
This warning indicates that user has switched the drive into 
manual mode. 
Current and velocity limited to 
limman % of normal limits. 
U9  Enable Attempted Warning: 
This warning indicates that the user has attempted to enable the 
drive from a no fault state, but with at least one of the conditions 
for enable false (e.g. H/w enable false, Bus voltage not present). 
Drive will not enable. 
Note that this warning will 
remain present once set until 
the drive is truly enabled 
U10  Power Amplifier Thermal Limit Warning: 
This warning indicates that the power transistor heatsink 
temperature is causing the current to be limited. 
Current limited 
U11  Motor Thermal Limit Warning: 
This warning indicates that the motor winding temperature is 
causing the current to be limited. 
Current limited 
U12  Ambient Thermal Limit Warning: 
This warning indicates that the ambient (control card sensor) 
temperature is causing the current to be limited. 
Current limited 
U13  Ambient Thermal Warning : 
This warning indicates that the ambient (control card sensor) 
temperature is within 10% of the ambient max temperature. 
Current limited 
U14 Field Bus Warning: 
Set if the firmware and fieldbus card versions are inconsistent. 
Drive will not engage 
U15  Reserved for future use.   
U16  Reserved for future use.   
U17  I2T Limit Warning: 
Set if the absolute value of current demand pre-thermal limiting 
(Field 1122) is greater than or equal to the I2T current limit 
(Field 4241) and the drive is enabled. 
Current Limited 










