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Direct mode, Direct mode -8 – CONTREX MLP-Trim User Manual

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Direct Mode

In the Direct mode of operation, the Speed Command output from the MLP–Trim that is
connected to the motor drive can be set directly. Direct mode is an open-loop mode of
operation. Scaling, Acceleration/Deceleration, and closed loop compensation (PID)
software are not involved in the Direct mode. The Direct mode is used in conjunction
with the Run and Stop controls.

Caution: To avoid damage to your system, the MLP–Trim must be calibrated and the

motor drive set up before you enter the Direct Control Parameters. Refer to

Installation/Setup: Calibration

.

The Direct Setpoint (CP-06) is entered as a percentage of the MLP–Trim's calibrated
full scale Speed Command output. To enable or disable Direct mode, use the Direct
Enable (CP-61).

The factory default Control Parameters for the Direct mode are found in Table 3-2. To
modify the default parameters, refer to Table 3-3.

Table 3-2 Default Direct Mode Control Parameters

CP

Parameter Name

Parameter Value

CP-06

Direct Setpoint

0

CP-61

Direct Enable

0

Table 3-3 Entering Direct Mode Control Parameters

CP

Parameter Name

Parameter Value

CP-06

Direct Setpoint

CP-61

Direct Enable

Enter the percentage of the calibrated
full scale Speed Command output at
which you want your system to operate.

Enter “1” to enable the Direct Mode.
Enter “0” to disable the Direct Mode.