Control Techniques UNIDRIVE SP1201 Guía Rápida página 45

Safety Product Mechanical
Information Information Installation
Trip
OIdC.P Power module over current detected from IGBT on state voltage monitoring
Vce IGBT protection activated.
109
Check motor and cable insulation.
Digital output overload: total current drawn from 24V supply and digital outputs exceeds
O.Ld1
200mA
26 Check total load on digital outputs (terminals 24,25,26)and +24V rail (terminal 22)
DC bus voltage has exceeded the peak level or the maximum continuous level for 30
OV
seconds
Increase deceleration ramp (Pr 0.04)
2
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.
Check motor insulation
Drive voltage rating
200
400
575
690
If the drive is operating in low voltage battery mode the overvoltage trip level is 1.45 x Pr 6.46.
OV.P Power module over voltage
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.
Check motor insulation
106
Drive voltage rating
200
400
575
690
If the drive is operating in low voltage battery mode the overvoltage trip level is 1.45 x Pr 6.46.
O.SPd Motor speed has exceeded the over speed threshold
Increase the over speed trip threshold in Pr 3.08 (closed loop modes only)
7
Speed has exceeded 1.2 x Pr 1.06 or Pr 1.07 (open loop mode)
Reduce the speed loop P gain (Pr 3.10) to reduce the speed overshoot (closed loop modes only)
PAd Keypad has been removed when the drive is receiving the speed reference from the keypad
Fit 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
32
Check input voltage levels are correct (at full load)
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.
Ph.P Power module phase loss detection
Ensure all three phases are present and balanced
107
Check input voltage levels are correct (at full load)
PS Internal power supply fault
Remove any Solutions Modules and reset
5
Check integrity of interface ribbon cables and connections (size 4,5,6 only)
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
Unidrive SP Short Form Guide
Issue Number: 1
Electrical Getting
Menu 0
Installation Started
Peak voltage
415
830
990
1190
Peak voltage
415
830
990
1190
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Running Advanced
Diagnostics
the motor parameters
Diagnosis
Maximum continuous voltage level
405
810
960
1160
Maximum continuous voltage level
405
810
960
1160
UL Listing
Appendix
Information
45