Penta KB Power 8401, Installation And Operation Manual

Page: 13 / 20

10
A. Motor Voltage Selection (J1) – Jumper
J1 is factory set to “90V” position for 90
Volt SCR rated motors (or 130 Volt PWM
rated motors). For 180 Volt SCR rated
motors (or 220 Volt PWM rated motors),
set jumper J1 to “180V” position. See
Figure 14.
Note: If jumper J1 is set to “T”
position, a tach-generator must
be wired to TB3. If a tach-gener-
ator is not used, jumper J1 must
be in either “90V” or “180V” posi-
tion. If jumper J1 is in “T” position
and a tach-generator is not used,
the motor will accelerate to full
speed and the main speed poten-
tiometer will not control speed.
B. Motor Current Selection (J2) –
Jumper J2 is factory set to “7.5A”
position for 7.5 Amp motors.
For motors of lower amper-
age, set Jumper J2 to the
corresponding position for
the motor being used. See
Figure 15 and Table 5.
Note: For low (L) motor
current settings (0.8A, 0.5A,
0.4A, 0.3A, and 0.2A), it is
necessary to remove resis-
tor R35. Cut the leads at
the locations shown in
Figure 16.
WARNING!
Disconnect AC line
before cutting out resistor R35. Use an insulated cutter and wear safety glasses.
!
TO REMOVE RESISTOR R35
CUT THE LEADS HERE
WHT WHT BLU BLU
L2A L1B L2B L1A
R35
J7B
Q5
BLK
J7A
RED WHT
A2A
J6B
TB1
A1A A2B
J6A
L1 L2 A2 A1
D6
CON2
D20
TB2
A1B
ORG Q4
F1 F2
FIGURE 16 – REMOVING RESISTOR R35
1/2, (0.37)
SCR Rated Motor Horsepower
HP, (kW)
PWM Rated Motor Horsepower
HP, (kW)
J2 Setting
(Amps DC)
130 Volts DC Motors
1/4, (0.18)
1/2, (0.37)
90 Volts DC Motors 180 Volts DC Motors 220Volts DC Motors
7.5
5.0
3.5
2.5
1.7
0.8*
3/4, (0.5)
1/2, (0.37)
1/3, (0.25)
1/4, (0.18)
1/6, (0.1)
1/12, (0.06)
0.5*
0.4*
0.3*
0.2*
1/20, (0.04)
1/20, (0.04)
1 1 ⁄
2
, (1)
1/25, (0.03)
1/30, (0.02)
1/50, (0.01)
1, (0.75)
3/4, (0.5)
1/3, (0.25)
1/6, (0.1)
1/10, (0.08)
1/12, (0.06)
1/15, (0.05)
1/25, (0.03)
1, (0.75)
3/4, (0.5)
1/2, (0.37)
1/3, (0.25)
1/4, (0.18)
1/8, (0.09)
1/15, (0.05)
1/20, (0.04)
1/25, (0.03)
1/30, (0.02)
2, (1.5)
1 1 ⁄
2
, (1)
1, (0.75)
3/4, (0.5)
1/6, (0.1)
1/8, (0.09)
1/10, (0.08)
TABLE 5 – SETTING MOTOR CURRENT (SCR & PWM Motor Horsepower Ratings)
*Note: For low (L) motor current range settings (0.8A, 0.5A, 0.4A, 0.3A and 0.2A), it is necessary to remove resistor R35 as
shown in figure 16.
90V
180V
T
J1
90V
J1
180V
T
J1 Set for 90 Volt Motors
(Factory Setting) J1 Set for 180 Volt Motors
FIGURE 14 – MOTOR VOLTAGE SELECTION
*Note: For low (L) motor current range settings (0.8A, 0.5A, 0.4A,
0.3A and 0.2A), it is necessary to remove resistor R35 by cutting it
out of the circuit as shown in figure 16 on page 10.
0.2
7.5
5.0
3.5
2.5
1.7
0.8
0.5
0.4
0.3
Low Scale
Current Range*
(Amps DC)
High Scale
Current Range
(Amps DC)
J2 Set for 7.5 Amp Motor
(Factory Setting)
FIGURE 15 – MOTOR CURRENT SELECTION