LEESON SM Series Sub-Micro Inverters User Manual

Page 18

Advertising
background image

14

10.6

SPEED REFERENCE SELECTION

If an analog speed reference input is used to control the drive speed, terminal TB-13A, 13B, or 13E
(Parameter 10, 11, or 12) may be programmed as the input select for the desired analog input signal.
When that TB-13 terminal is then closed to TB-11, the drive will follow the selected analog speed
reference input.

If an analog speed reference input is not selected on the terminal strip using TB-13A, 13B, or 13E,
speed control will default to STANDARD mode, which is governed by the setting of Parameter 05 -
STANDARD SPEED SOURCE. The STANDARD SPEED SOURCE can be the

L and M buttons on

the front of the drive, PRESET SPEED #1(Parameter 31), a 0-10 VDC signal, or a 4-20 mA signal.

0-10 VDC and 4-20 mA INPUT SIGNALS

TB-13A, TB-13B, and TB-13E can all be programmed to select a 0-10 VDC or 4-20 mA analog speed
reference input.

PRESET SPEEDS

TB-13A can be programmed to select PRESET SPEED #1 (04), TB-13B to select PRESET SPEED #2
(04), and TB-13E to select PRESET SPEED #3 (04). There are a total of seven preset speeds, which are
activated by different combinations of contact closures between TB-13A, 13B, 13E and TB-11. Refer to
Parameters 31-37 in Section 15.0 - DESCRIPTION OF PARAMETERS.

JOG

TB-13B can be programmed to select either JOG FORWARD (07) or JOG REVERSE (08). The Jog
speed is set by PRESET SPEED #2 (Parameter 32). Close TB-13B to TB-11 to JOG, and open the
contact to STOP.

When operating in JOG mode, the STOP signal and the AUXILIARY STOP
function (see Parameters 10-12) WILL NOT stop the drive. To stop the drive,
remove the JOG command.

JOG REVERSE will operate the drive in reverse rotation even if ROTATION
DIRECTION (Parameter 17) is set to FORWARD ONLY.

NOTE: If the drive is commanded to JOG while running, the drive will enter JOG mode and run
at PRESET SPEED #2. When the JOG command is removed, the drive will STOP.

MOTOR OPERATED POT (MOP) / FLOATING POINT CONTROL

TB-13B and TB-13E are used for this function, which controls the drive speed using contacts wired to
the terminal strip. Program TB-13B for DECREASE FREQ (05), and program TB-13E for INCREASE
FREQ (05). Closing TB-13B to TB-11 will cause the speed setpoint to decrease until the contact is
opened. Closing TB-13E to TB-11 will cause the speed setpoint to increase until the contact is opened.
The INCREASE FREQ function will only operate while the drive is running.

WARNING

Advertising