Troubleshooting
Troubleshooting Ctd.
4) Drive Status LED1 solid green but remains at 0 Hz.
Driveisreceivingruncommandbutisnotfollow-
ing/receiving4-20mAspeedreferencesignal.
- Check wiring of M12 receptacle. Conrm the
whitewireisproperlyconnectedtoterminal14
and the brown wire is properly connected to
terminal 12.
- CheckparameterP709[-01](Informationgroup)
forstatusofanaloginputwhilethecontrolpanel
issendingspeedreferencecommands.
o If using NORDCON, status window does not
automaticallyupdatewhentheanaloginput
state changes. Press “Read” button to
update status window. If analog input
signal is present, parameter will show a
percentage:
4mA=10%, 20mA=50%.
o If using the SK PAR-3H handheld program-
ming tool, the analog input state will auto-
matically be displayed when changed andis
shownasapercentage.
- Iftheinternalwiringiscorrectandifthestatus
of parameter P709[-01] does not show an
analog signal present, check external control
wiringandcontrolpanelconguration.
5) Drive only runs at full speed or at incorrect speeds.
TheAIN1DIPswitchintheanaloginputDIPswitch
diagnostic cockpit is in the OFF position or the
driveisnotprogrammedproperly.
- Conrm the AIN1 DIP switch is in the ON
position.SeeFigures11&12forswitchlocation.
- Conrm the analog input parameters (Control
Clampsgroup)areconguredproperly.
o ParameterP400[-01]:1–Setpointfrequency
o ParameterP402[-05]:1.00V
o ParameterP403[-05]:5.00V
- CheckparameterP709[-01]forstatusofanalog
inputwhilethecontrolpanelissendingspeed
reference commands and conrm signal level
displayed matches signal level being sent by
controlpanel.SeeTroubleshootingTopic#4for
moreinformation.