KB Electronics Multi Speed Board - Manual (Page 13)

B. Enable Switch Connection – If a
Run/Stop function is required, remove
the KBMG Multi-Speed Board Jumper
J1 and wire a switch to Terminals EN
and COM of Terminal Block TB1.
When the switch is closed, the control
will operate. When the switch is
opened, the control will stop. Note:
KBMG Multi-Speed Board Jumper J1
must be installed or a connection must be made between Terminals EN and COM of
Terminal Block TB1 in order for the KBMG Multi-Speed Board to operate. See Figure
12, on page 10.
C. Tach-Generator Connection – If a tach-generator is to be used, wire a 7 Volt (or 50
Volt) DC per 1000 RPM tach-generator to the KBMG Multi- Speed Board, connect the
positive (+) side of the tach-generator to Terminal T2 of CON2 and the negative (-) side
of the tach-generator to Terminal T1 of CON2. Note: If the positive (+) and negative (-)
tach-generator connections are not as described above, the motor will run at full speed
only. See Figure 13. (Note: Refer to the KBMG instruction manual for tach-generator
feedback operation.)
V. OPERATION
After the KBMG Multi-Speed Board has been properly setup (jumpers and trimpots set to
desired positions and wiring completed), the startup procedure can begin. If AC power has
been properly brought to the control, the power on (PWR) LED, on the KBMG, will illuminate.
Select a preset, as described in Section IV A, on page 10. The motor will begin to run at the
preset speed selected.
11
T1 (-)
TACH
DC TACH-GENERATOR
+ -
T2 (+)
G
FIGURE 13 – TACH-GENERATOR CONNECTION