LEESON SM-Basic Series Sub-Micro Inverters (Obsolete) User Manual

Page 30

AT SET SPEED: Closes if the drive is within + 0.5 Hz of the speed setpoint.

ABOVE PRESET SPEED #3: Closes if the output frequency exceeds PRESET SPEED #3
(Parameter 33). Opens if the output frequency is equal to or less than PRESET SPEED #3.

CURRENT LIMIT: Closes if the output current exceeds the CURRENT LIMIT setting. Opens
if the output current is equal to or less than CURRENT LIMIT (see Parameter 25).

AUTOMATIC SPEED MODE: Closes if an AUTOMATIC (terminal strip) speed reference is
active. Opens if a STANDARD (Parameter 5) speed reference is active.

REVERSE: Closes when reverse rotation is active. Opens when forward rotation is active (see
Parameter 17 - ROTATION DIRECTION).

DB BRAKE: TB-14 becomes the "trigger" that activates the optional external Dynamic Braking
module. Refer to the instructions included with the Dynamic Braking option.

NOTE: If the optional remote keypad is used, TB-14 is wired to the remote keypad and cannot be
used for any of the above listed functions. In this case, this parameter should be set to NONE (01).

TB-13A FUNCTION SELECT

This selects the function of terminal TB-13A. Closing TB-13A to TB-11 (or opening in the case of
settings 07 and 09) activates the selected function. The following functions can be selected:

NONE: Disables the TB-13A function.

SPEED POT: Selects a speed pot as the speed reference input. Refer to Section 11.0 for speed
pot wiring.

PRESET SPEED #1: Selects PRESET SPEED #1 as the speed reference. The drive will operate
at the frequency programmed into Parameter 31.

START FORWARD: Sets up the drive for a 3-wire start/stop circuit. Momentarily close TB-
13A to TB-11 to start the drive, and momentarily open TB-1 to TB-11 to stop.

RUN REVERSE: Close TB-13A to TB-11 to run in the reverse direction, and open to stop.
Close TB-1 to TB-11 to run in the forward direction and open to stop.

START REVERSE: Momentarily close TB-13A to TB-11 to start the drive in the reverse
direction, and momentarily open TB-1 to TB-11 to stop. Parameter 17 - ROTATION must be
set to FORWARD AND REVERSE (02), and TB-13C must be used for START FORWARD.

EXTERNAL FAULT: Sets TB-13A as a normally closed external fault input. Open TB-13A to
TB-11 to trip the drive.