Menu 10
Parameter
structure
Keypad and
display
Parameter
x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance RFC mode
188 Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
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
7
Increase the over speed trip threshold in Pr 3.08 (closed loop vector and servo modes only)
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 vector and servo modes only)
OV DC bus voltage has exceeded the peak level or the maximum continuous level for 15 seconds
2
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
Drive voltage rating Peak voltage Maximum continuous voltage level (15s)
200 415 410
400 830 815
575 990 970
690 1190 1175
If the drive is operating in low voltage DC mode the overvoltage trip level is 1.45 x Pr 6.46.
OV.P Power module DC bus voltage has exceeded the peak level or the maximum continuous level for 15 seconds
106
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
Drive voltage rating Peak voltage Maximum continuous voltage level (15s)
200 415 410
400 830 815
575 990 970
690 1190 1175
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
34
Install keypad and reset
Change speed reference selector to select speed reference from another source
PH AC voltage input phase loss or large supply imbalance detected
32
Ensure all three phases are present and balanced
Check input voltage levels are correct (at full load)
N
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
107
Ensure all three phases are present and balanced
Check input voltage levels are correct (at full load)
PS Internal power supply fault
5
Remove any Solutions Modules and reset
Hardware fault - return drive to supplier
PS.10V 10V user power supply current greater than 10mA
8
Check wiring to terminal 4
Reduce load on terminal 4
PS.24V 24V internal power supply overload
9
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, the SM-
Universal Encoder Plus encoder supply and the SM-Encoder Output Plus encoder supply.
• Reduce load and reset
• Provide an external 24V >50W power supply
• Remove any Solutions Modules and reset
Trip Diagnosis
To Next Page
Loading...
Need help?
General
