Lenze MCH Series - Manual (Page 79)

13435744_EDBMH01_v13 75
19.6 MCH DISPLAY IN PID MODE
When the drive is in PID mode, the DRIVE STATUS portion of the display will indicate
actual output frequency (in Hertz) instead of RUN, and the bottom left part of the display
will indicate % LOAD, VAC or PID FEEDBACK. The ENTER key is used to toggle
between the different displays. Examples of the possible displays are shown below.
DRIVE
STATUS
DRIVE
STATUS
DRIVE
STATUS
PID
SETPOINT
42.53 HZ 35.0 PSI
57 % LOAD AUTO
LOAD
METER
HAND/OFF/AUTO
STATUS
PID
UNITS
PID
SETPOINT
42.53 HZ 35.0 PSI
33.7 PSI AUTO
PID
FEEDBACK
HAND/OFF/AUTO
STATUS
PID
UNITS
PID
SETPOINT
42.53 HZ 35.0 PSI
341 VAC AUTO
MOTOR
VOLTAGE
HAND/OFF/AUTO
STATUS
PID
UNITS
In the examples above, the drive is running at 42.53 Hz to maintain the PID SETPOINT
of 35.0 psi. The load is 57%. Pressing the ENTER key displays motor voltage, which is
341 Vac. Pressing ENTER again displays the PID FEEDBACK from the process, which
is 33.7 psi.
When the PID FEEDBACK display is selected, the display will flash FEEDBACK before
displaying the value to indicate what is being displayed.