Installing the Drive 3-47
DC590+ DRV Series DC Digital Drive
Analog Tacho Calibration Option Board
WARNING
Do not fit this Option Board with the drive powered-up
This product may be fitted with a new version of the Analog Tacho Calibration Option Board.
ORIGINAL The original option has Part Number AH385870U001 and is configured by setting its two 10-position slide switches and
two 2-position slide switches. Refer to Product Manual Chapter 4: “Selecting Speed Feedback” for further information on
using this original option.
NEW The new option has Part Number AH500935U001 and is mounted in the same manner as the original. The connecting link
wire to the control board is still required and must be connected for operation.
It is configured by setting its single 10-way switch and single 2-position switch.
Calibration of the new AH500935U001 version
On this new version of the option the full-speed tachogenerator voltage is configured by adding together
the values from any number of the individual selection switches (on the 10-way switch).
CALIBRATED FULL-SPEED VOLTAGE = 10V + SUM OF SWITCHES SELECTED
NOTE: Individual switch values will be included if the switch is set to the right.
In the example AH500935U001 shown above (with three switches selected): Calibrated full-speed voltage = 10V + (50V + 20V + 10V) = 90V
IMPORTANT
The calibrated full-speed voltage is 10V greater than the sum of switch values selected.
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