I.B. 48008
Page 6
Effective 11/97
OPTIONS
Each of the six variations rated by field supply output
current and voltage (50, 100, or 200 amperes at either
125 or 250 VDC) will perform with any combination of
user selected options as determined by jumpers inserted
into terminals on the synchronous control board. See
Figure 5 and Table II.
Supply Frequency
The synchronizing and control circuit board may be
operated from either a 50 or 60 hertz power supply. To
operate from a 60 hertz power supply add three jumpers
to the 60 hertz terminals located near RLY1 and one
jumper to the 60 hertz terminal located near RLY3. See
Figure 5 and Table II.
To operate from a 50 hertz supply remove all four jump-
ers from the 60 hertz terminals and add a single jumper
to the 50 hertz terminal located near RLY3. See Figure 5
and Table II.
110/120 VAC Operation
To operate the synchronizing and control circuit board
from a 110 or 120 VAC supply, add six jumpers to
the120V terminals located above T1, T2, and T3 and two
jumpers to the 120V terminals located near T4. Remove
the jumper from the 240V terminal located with TO
terminal near T4. See Figure 5 and Table II. (Jumpers
are factory installed, when supplied as part of a complete
motor starter.)
220/240 VAC Operation
To operate the synchronizing and control circuit board
from a 220 or 240 VAC supply, add three jumpers to the
240V terminals above T1, T2, and T3 and one terminal to
the 240V terminal located with the TO terminal near T4.
Remove jumpers from the two 120V terminals located
near T4. See Figure 5 and Table II.
ADJUSTING THE MOTOR FIELD VOLTAGE
To adjust the motor field voltage, use the external 2000
ohm potentiometer (P2) shown in Figure 4.
POWER FACTOR, VAR OR DC FIELD CURRENT
CONTROL (OPTION)
When this option is included, a two-position selector
switch marked AUTO-MAN (SS1) is furnished. On initial
startup, place SS1 in the MAN (manual) position. I.B.
48009 explains the automatic operation and the connec-
tion of this additional control panel to terminals VPF and
PSC on the synchronous control board (Figure 5).
INCOMPLETE SEQUENCE – TIME-OUT SHUTDOWN
To utilize the time-out (TO) option which will energize
control relay RLY3, place a jumper onto the two pins
marked TO in the four-pin terminal marked 240V, TO
located to the right of RLY3 on the printed circuit board.
With the TO jumper in place, RLY3 is energized whenever
the motor slip frequency fails to decrease to the synchro-
nizing slip frequency set by SW1 within a period of 34
seconds when operating at 60 hertz or 40 seconds when
operating at 50 hertz.
TABLE II — JUMPER INSTALLATION FOR OPTIONS
FUNCTION
TERMINAL MARKING
PUT JUMPER
JUMPERS NEEDED
AT TERMINALS
TO ACTIVATE
Use a 50 Hertz Supply
50 HZ, 60 HZ
50 HZ
1
60 HZ, 60 HZ, 60 HZ
None
0
Use a 60 Hertz Supply
50 HZ, 60 HZ
60 HZ
1
60 HZ, 60 HZ, 60 HZ
60 HZ, 60 HZ, 60 HZ
3
Use a 110 or 120 VAC
240V, TO
None
0
Supply
120 V, 120V
120 V, 120 V
2
(3) 120 V, 240 V, 120 V
(3) 120 V, 120 V
6
Use a 220 or 240 VAC
240 V, TO
240 V
1
Supply
120 V, 120 V
None
0
(3) 120 V, 240 V, 120 V
(3) 240 V
3
Time-Out Shutdown
240 V, TO
TO
1
