KB Electronics KBAC-48 - Manual (Page 19)

19
6.4.2 Setting the Drive for Two Times
the Rated Motor RPM – The drive
can also be used to operate
the motor up to two times the
rated RPM. However, constant
horsepower will result when
operating the drive in the “2X”
mode above the motor rated
frequency. See Figure 21.
For 120 Hz output with 60 Hz
motor, set Jumper J4 to the “2X”
position and be sure Jumper J5
is set to the “60Hz” position. For
100 Hz output with 50 Hz motor,
set Jumper J4 to the “2X” position
and set Jumper J5 to the “50Hz”
position. See Figure 22.
6.5 Boost Mode Selection (J6) – Jumper
J6 is factory set to the “FIX” position for
Fixed Boost. For Adjustable Boost using
the BOOST Trimpot, set Jumper J6 to the
“ADJ” position. See Figure 23 on page 20.
Also see Section 13.8 on page 26 for
the BOOST Trimpot range.
6.6 Braking Mode Selection (J7) –
Jumper J7 is factory set to the “RG”
position for Regenerative Braking when
the Start/Stop Switch is set to the “STOP”
position. For DC Injection Braking, set
Jumper J7 to the “INJ” position. See
Figure 24 on page 20. Also see Section 13.5
on page 24.
When the Injection Brake Mode is
selected, the DECEL Trimpot is used to
adjust the brake time and intensity.
6.7 Run/Fault Output Relay Operation
Selection (J8) – Jumper J8 is factory
set to the “R” position for “Run” operation
of the Run/Fault Relay. For “Fault”
operation of the Run/Fault Relay, set
Jumper J8 to the “F” position.
See Figure 25 on page 20.
For Run/Fault Relay output contacts,
see Section 5.8 on page 17. The Run/Fault
Relay contact status for various drive
operating conditions is shown in Table 6
on page 17.
6.8 Stop Contact Selection (J9) – Jumper
J9 is factory set to the “NO” position for a
normally open stop contact. For remote
normally closed stop contact, set Jumper
J9 to the “NC” position. See Figure 26 on
page 20. For wiring information, see
Section 5.5 on page 16.
Automatic Ride-Through
(Factory Setting)
(J3 Installed in “A” Position)
Manual Start
(J3 Installed in “M” Position)
A
J3
M
A
J3
M
Figure 19 – Automatic Ride-Through
or Manual Start Selection*
*On Model KBAC-24D, Jumper J3 is labeled “AUTO” and “MAN”.
60 Hz Motor Operation
(Factory Setting)
(J4 Installed in “1X” Position)
(J5 Installed in “60Hz” Position)
50 Hz Motor Operation
(J4 Installed in “1X” Position)
(J5 Installed in “50Hz” Position)
50H
z
J5
60H
z
2X
J4
1X
50H
z
J5
60H
z
2X
J4
1X
Figure 20 – 60 Hz & 50 Hz Motor Selection
50/60
Output Frequency (Hz)
0
2 0
% T
orque 50
100/120
100
Figure 21 – Available Torque vs. Output Frequency
120 Hz Output with 60 Hz Motor
(J4 Installed in “2X” Position)
(J5 Installed in “60Hz” Position)
100 Hz Output with 50 Hz Motor
(J4 Installed in “2X” Position)
(J5 Installed in “50Hz” Position)
50H
z
J5
60H
z
2X
J4
1X
50H
z
J5
60H
z
2X
J4
1X
Figure 22
120 Hz & 100 Hz Drive Output Frequency Selection