Nidec F600 - Drive Operating Modes and Features; Open-Loop (OL) Mode Configuration

F600 Step By Step Guide 30
Set the process PID
setpoint.
Set process PID Setpoint 0 Pr 0.029 to the value required by the system design, e.g.
A system is designed to run at a constant 0.5 bar pressure and the pressure transducer
maximum is 1 bar so the process PID setpoint in percent units would be 50.00 %.
Set the wake
threshold.
The wake threshold determines the feedback value, below which, the drive will start
operating and the minimum working feedback level, e.g. if the setpoint pressure is 50.00 %
and the wake threshold is 40.00 % the drive try to maintain its output between these values.
Set the Wake Detection Feedback Threshold Pr 0.040.
Set the sleep
threshold.
The sleep threshold determines the frequency or speed below which the drive will stop
during normal operation. Set the Sleep Detect Speed Threshold Pr 0.042 to a value in the
order of 1 % to 5 % of motor rated frequency or speed above the Positive Minimum
Reference Clamp Pr 0.023 value.
Setting the sleep threshold less than the Positive Minimum Reference Clamp Pr 0.023 value
disables the sleep threshold.
Run in Auto mode. When it is safe to do so, run the system in Auto mode. To do this, press and hold the blue
Auto button for 2 s or close the Auto switch. The display will change to Auto Run.
The application motor should run at a speed that controls the system output at the process
PID Setpoint 0 Pr 0.029.
If the system remains in the sleeping state, the process PID Final Feedback Pr 0.075 has
not fallen below the Wake Detection Feedback Threshold Pr 0.040.
Move to the next step when the drive is running in Auto mode.
Verify the sleep
threshold.
If the application has a discharge valve, slowly close it and make sure that the drive enters
the Sleeping state. If the sleeping state is not entered with a fully closed discharge valve,
note the frequency or speed while in this condition, and increase the Sleep Detect Speed
Threshold Pr 0.042 to 1 % to 5 % above the noted value.
50.00 UU
P I D S e t p o i n t 0
40.00 UU40.00 UU
Wake Detect FbckW a k e D e t e c t F b c k
ThresholdT h r e s h o l d
25.00 Hz25.00 Hz
Sleep DetectS l e e p D e t e c t
Speed ThresholdS p e e d T h r e s h o l d
RunRun
Auto RunA u t o R u n
25.9 Hz2 5 . 9 H z
AUT O
Ready
Sleeping
0 . 0 Hz
43.21 UU43.21 UU
Pid FinalP i d F i n a l
FeedbackF e e d b a c k
40.00 UU
40.00 UU
Wake Detect Fbck
W a k e D e t e c t F b c k
Threshold
T h r e s h o l d
27.00 Hz27.00 Hz
Sleep DetectS l e e p D e t e c t
Speed ThresholdS p e e d T h r e s h o l d