LEESON SM-Plus Series Sub-Micro Inverters User Manual
Page 25
21
11.5
SPEED POT AND PRESET SPEED CONTROL
Shown below is the wiring for SPEED POT and/or PRESET SPEED control, and either a two-wire or
three-wire start/stop circuit:
NOTES:
1.
Program the PRESET SPEEDS (Parameters 31-37) to the desired values.
2.
Program TB-13A (Parameter 10) to PRESET SPEED #1 (04). TB-13B (parameter 11) to
PRESET SPEED #2 (04), and TB-13C (Parameter 12) to PRESET SPEED #3 (04). To select a
preset speed, close the appropriate TB-13 terminal(s) to TB-2 (refer to Parameters 31-37 for the
Preset Speed Activation table).
3.
If reverse rotation is also required, TB-13A cannot be used as a PRESET SPEED SELECT.
TB-13A must be programmed to select RUN REVERSE (05) or START REVERSE (06), leaving
only TB-13B and TB-13C to select preset speeds.
4.
For speed pot control, program Parameter 05 - STANDARD SPEED SOURCE for 0-10 VDC
(03). If none of the preset speeds are selected (all of the TB-13 terminals are open), the drive will
respond to the speed pot.
ST
OP
1 2
The TB-2 terminals are internally connected to each other
5
11 12 2 14 13A 13B 13C 15 25
2 30 31 TXA TXB
6
COMMON
0-10
VDC
INPUT
ST
AR
T
10
VDC
SUPPL
Y
COMMON
PRESET
SPEED
SELECT
PRESET
SPEED
SELECT
PRESET
SPEED
SELECT
2.5K-10K½