Control Techniques Digitax ST Advanced User's Manual page 131

Parameter Keypad and
structure display
Trip
O.Ld1 Digital output overload: total current drawn from 24V supply and digital outputs exceeds 200mA
26 Check total load on digital outputs (terminals 24,25,26)and +24V rail (terminal 22)
O.SPd Motor speed has exceeded the over speed threshold
Increase the over speed trip threshold in Pr 3.08
7
Reduce the speed loop P gain (Pr 3.10) to reduce the speed overshoot
OV DC bus voltage has exceeded the peak level or the maximum continuous level for 15 seconds
Increase deceleration ramp (Pr 0.04)
Decrease braking resistor value (staying above the minimum value)
Check nominal AC supply level
Check for supply disturbances which could cause the DC bus to rise – voltage overshoot after supply recovery from a notch induced
by DC drives.
2
Check motor insulation
Drive voltage rating
200
400
If the drive is operating in low voltage DC mode the overvoltage trip level is 1.45 x Pr 6.46.
PAd Keypad has been removed when the drive is receiving the speed reference from the keypad
Instal keypad and reset
34
Change speed reference selector to select speed reference from another source
PH AC voltage input phase loss or large supply imbalance detected
Ensure all three phases are present and balanced
Check input voltage levels are correct (at full load)
N
32
NOTE
Load level must be between 50 and 100% for the drive to trip under phase loss conditions. The drive will attempt to stop the motor
before this trip is initiated.
PS Internal power supply fault
Remove any Solutions Modules and reset
5
Hardware fault - return drive to supplier
PS.10V 10V user power supply current greater than 10mA
Check wiring to terminal 4
8
Reduce load on terminal 4
PS.24V 24V internal power supply overload
The total user load of the drive and Solutions Modules has exceeded the internal 24V power supply limit.
The user load consists of the drive's digital outputs, the SM-I/O Plus digital outputs, the drive's main encoder supply and the SM-
Universal Encoder Plus encoder supply.
9
• Reduce load and reset
• Provide an external 24V >50W power supply
• Remove any Solutions Modules and reset
PSAVE.Er Power down save parameters in the EEPROM are corrupt
Indicates that the power was removed when power down save parameters were being saved.
The drive will revert back to the power down parameter set that was last saved successfully.
37
Perform a user save (Pr xx.00 to 1000 or 1001 and reset the drive) or power down the drive normally to ensure this trip does or occur
the next time the drive is powered up.
SAVE.Er User save parameters in the EEPROM are corrupt
Indicates that the power was removed when user parameters were being saved.
The drive will revert back to the user parameter set that was last saved successfully.
36
Perform a user save (Pr xx.00 to 1000 or 1001 and reset the drive) to ensure this trip does or occur the next time the drive is
powered up.
SCL Drive RS485 serial comms loss to remote keypad
Re-instal the cable between the drive and keypad
Check cable for damage
30
Replace cable
Replace keypad
SLX.dF Solutions Module slot X trip: Solutions Module type installed in slot X changed
204,209 Save parameters and reset
Digitax ST Advanced User Guide
Issue Number: 1
Parameter
Parameter x.00
description format
Peak voltage
415
830
www.controltechniques.com
Advanced parameter Serial comms
descriptions protocol
Diagnosis
Maximum continuous voltage level (15s)
400
800
Electronic
Performance
nameplate
Menu 10
131