KB Electronics KBAC-48 - Manual (Page 20)

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6.9 Torque Mode Selection (J10) – Jumper J10 is factory set to the “CT” position for Constant Torque
Mode, which is desirable for most machine applications. For Variable Torque Mode, used for HVAC
and fan applications, set Jumper J10 to the “VT” position. See Figure 27.
6.10 I 2 t Overload Selection (J11) – Jumper J11 is factory set to the “1” position for Inverter Duty Rated
Motors. For Non Inverter Duty Rated Motors and HVAC applications, set Jumper J11 to the “2”
position. See Figure 28. Also see Section 13.7 on page 25.
7 MOUNTING INSTRUCTIONS
It is recommended that the drive be mounted vertically on a flat surface with adequate ventilation.
Leave enough room below the drive to allow for AC line, motor connections, and any other wiring that is
required. Although the drive is designed for outdoor and washdown use, care should be taken to avoid
extreme hazardous locations where physical damage can occur. When mounting the drive in an enclosure,
the enclosure should be large enough to allow for proper heat dissipation so that the ambient tempera-
ture does not exceed 40 °C (104 °F) at full rating. See Figure 3 on page 11 and Figure 4 on page 12.
WARNING! Do not use this drive in an explosion-proof application.
Fixed Boost
(Factory Setting)
(J6 Installed in “FIX” Position)
Adjustable Boost
(J6 Installed in “ADJ” Position)
ADJ
J6
FIX
ADJ
J6
FIX
Figure 23 – Fixed
or Adjustable Boost Selection
Regenerative Braking
(Factory Setting)
(J7 Installed in “RG” Position)
DC Injection Braking
(J7 Installed in “INJ” Position)
INJ
J7
RG
INJ
J7
RG
INJ
J7
RG
Figure 24 – Regenerative
or DC Injection Braking Selection
Regenerative Braking
(Factory Setting)
(J7 Installed in “RG” Position)
DC Injection Braking
(J7 Installed in “INJ” Position)
F
J8
R
F
J8
R
Figure 25 – “Run” or “Fault”
Output Relay Operation Selection
Normally Open Stop Contact
(Factory Setting)
(J9 Installed in “NO” Position)
Normally Closed Stop Contact
(J9 Installed in “NC” Position)
NO
J9
NC
NO
J9
NC
Figure 26 – Normally Open
or Closed Stop Contact Selection
Constant Torque
(Factory Setting)
(J10 Installed in “CT” Position)
Variable Torque
(J10 Installed in “VT” Position)
VT
J10
CT
J10
CT
VT
Figure 27 – Constant or Variable
Torque Selection
Inverter Duty Rated Motor
(Factory Setting)
(J11 Installed in “1” Position)
Non Inverter Duty Rated
Motor Operation
(J11 Installed in “2” Position)
1
J11
2
J11
2
1
Figure 28
I 2 t Overload Selection