Lenze MC1000 Series - Manual (Page 70)

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This parameter is used to reset the programmable parameters back to the factory
default settings. This parameter has four possible settings:
MAINTAIN
Maintain parameter settings as they are.
RESET 60 Resets parameters to factory defaults for 60 Hz base
frequency.
RESET 50 Resets parameters to factory defaults for 50 Hz base
frequency.
RST HIGH Resets parameters to factory defaults for 650 Hz base
frequency. This option will only appear if the drive is equipped
with the High Frequency Output option.
When a factory reset is performed, the following terminals are affected:
TB-1 will be disabled as a STOP input because Parameter 30 - CONTROL will
default to LOCAL.
TB-13A, 13B, and 13C will be disabled because Parameters 47, 48, and 49 will
default to NONE. If TB-13C was set to RUN REVERSE, TB-12A will default to a
momentary START contact.
TB-13D will default to a normally open EXTERNAL FAULT contact because
Parameter 50 - TB13D will be reset to EXT FAULT.
NOTE: This parameter will display RESET 60, RESET 50 or RST HIGH until a
change is made to one or more of the parameter settings. Once a parameter is
changed, the display will change to MAINTAIN.
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HISTORY (CLEAR FAULT HISTORY)
This parameter is used to clear the previous faults in the FAULT HISTORY. When set
to CLEAR and the ENTER key is pushed, the display will change to MAINTAIN, and
the FAULT HISTORY will display NO FAULT for each of the eight fault histories.
70 PID MODE (PID MODE SELECT)
This parameter activates the PID function, and selects whether the PID control will be
direct or reverse acting. Refer to Section 19 - MC1000 PID SET POINT CONTROL.
The following options are available:
OFF
Disables the PID function to allow “standard” drive operation.
NORMAL Enables the PID function for direct acting systems. An increase
in the feedback variable will cause a decrease in motor
speed.
REVERSE Enables the PID function for reverse acting systems. An
increase in the feedback variable will cause an increase in
motor speed.
NOTE: The REVERSE selection is not used to compensate for reverse acting feedback
devices. If a reverse acting feedback device is used, program Parameters 75 and 76
- FB @ MIN and FB @ MAX as described in Section 19.1 - FEEDBACK DEVICES.
When PID is enabled, and the drive is in REMOTE and AUTO mode, the drive will
operate in a CLOSED LOOP fashion, responding to the feedback signal in order
to maintain the process set point. In this case, the set point reference can be a
0-10 VDC or 4-20 mA signal, or the keypad. The SPEED REFERENCE SOURCE
indication in the CONTROL display will indicate VDC (0-10 VDC), IDC (4-20 mA),
or AKB (keypad), depending on the set point reference.