LINK Systems OmniLink 5000 - Manual (Page 61)

5.14
Section 5.2.13.8 Low Spm Input Offset
This parameter is used in the calibration procedure of the flywheel speed input to the press control. If
needed, this parameter can be used to adjust the spm reading at low speed (see Section 7.3).
Section 5.2.13.9 Low Output Spm
This parameter is used to calibrate the analog output from the press control to the motor drive, and to define
the low end of the speed range for this press. Operating speeds or configuration speeds (i.e. fixed Inch
speed) can not be set below this value. See section 7.3 for more information about calibrating motor speed.
Section 5.2.13.10 Low Output Calibration #
This parameter sets the analog output voltage required to drive the flywheel speed to the Low Output Spm
(see Section 5.2.13.9). The calibration number is scaled as:
Analog Output (vdc) = Calibration # x 10.00 (4095=10.00 vdc)
4095
Cal. # Analog Output Voltage
0000 0.0 vdc
1024 2.5 vdc
2048 5.0 vdc
3072 7.5 vdc
4095 10.0 vdc
An example of how this is used would be to set the minimum stroking speed of a press (high speed of 400
spm) to 50 spm. After the drive has been calibrated to operate at maximum rated speed with a 10.00 vdc
command signal, it is found that 2.5 vdc is required to operate the press at 50 spm. Setting the Low Output
Spm to 50 spm and the Low Output Calibration # to 1024 will configure the press control to allow operation
only from the configured Low Spm to High Spm. The analog output will be scaled to vary linearly from
2.5vdc at 50 spm to 10.00vdc at 400 spm.
Section 5.2.13.11 Mid Output Spm
This parameter sets the mid range speed of the press and can be used to compensate for non-linear
characteristics of the motor drive. If needed, it is used along with the Mid Output Calibration # (Section
5.2.13.12) to adjust the analog output command signal over the speed range of the press. If not used it
should be set to 0000. See section 7.3 for more information on calibrating motor speed.
Section 5.2.13.12 Mid Output Calibration #
This parameter sets the analog output voltage required to drive the flywheel speed to the Mid Output Spm.
The calibration number is scaled as described in Section 5.2.13.10. An example of how this is used would
be after calibrated for low to high speed (as described in Section 5.2.13.10) the press control is programmed
to command 225 spm (1/2 of 50-400 spm) and outputs 6.25 vdc (1/2 of 2.5-10.0 vdc). However, with this