Lenze SCD Series User Manual

Page 47

Advertising
background image

44

Example: A machine produces 175 parts per hour when the motor is running at 60 Hz. Setting the
SPEED SCALING to 175 will calibrate the drive's display to read 175 when the motor is running at
60 Hz. This is a linear function, so at 30 Hz the display would read 87.5, and at 120 Hz, the display
would read 350.

NOTE: If SPEED SCALING is set such that the maximum displayable value (6553.6) is exceeded,
the display will flash "9999" to indicate that the value is out of range. For example, if SPEED
SCALING is set to 6000, the drive will display 6000 when it is running at 60 Hz. If the speed is
increased past 65.5 Hz (at 65.5 Hz, the scaled value would be 6550), the display will flash "9999"
because a scaled value above 6553.6 cannot be displayed.

P40

FREQUENCY SCALING

This scales the analog output signal at TB-30 when it is configured for a frequency output. This
setting is the output frequency that is indicated when the output signal measures 10 VDC.

Example: A 0-5 VDC signal is required to indicate 0-60 Hz. Setting this parameter to 120 Hz would
yield 10 VDC at 120 Hz, and 5 VDC at 60 Hz. If the drive only operates up to 60 Hz, the output
signal at TB-30 is limited to the desired 0-5 VDC.

P41

LOAD SCALING

This scales the analog output signal at TB-30 and/or TB-31 when they are configured for a load
output. This setting is the load (in %) that is indicated when the output signal measures 10 VDC.

Example: A 0-10 VDC signal is required to indicate 0-150% load. Setting this parameter to 150%
will yield 10 VDC at 150% load.

P42

ACCEL / DECEL #2

This parameter sets the second acceleration and deceleration rate of the drive. To activate this
acceleration and deceleration rate, use terminal TB-13A, TB-13B or T-13C. TB-13A and TB-13B
can be set to AUXILIARY STOP which will cause the drive to decelerate to a stop according to the
time programmed in this parameter. TB-13C can be set to ACCEL/DECEL #2, which causes the
drive to accelerate and decelerate according to the time programmed in this parameter.

P44

PASSWORD

This allows the PASSWORD to be changed to any number between 000 and 999. Setting PASSWORD
to 000 disables the password function.

NOTE: The factory default password is 225.

P47

CLEAR FAULT HISTORY

01

MAINTAIN: Maintains the FAULT HISTORY (Parameter 50) entries for troubleshooting.

Advertising