11
FIG. 10 – TACH-GENERATOR
CONNECTION DIAGRAM
TABLE 8 – RELATIONSHIP of AC LINE INPUT AND MOTOR
VOLTAGE with J2 and J3 JUMPER POSITION
AC INPUT VOLTAGE J2A, J2B POSITION J4 POSITION MOTOR VOLTAGE
115 115 90 90
230 230 180 180
230 230 90* 90*
*A 90VDC motor can be used with a 230VAC line. However, speed range may be reduced and
motor derating may be required.
C. Field – For Shunt Wound Motors Only. Do not use terminals F1 and F2 for any other
purpose than to power the field on a shunt wound motor. Connect motor shunt field to
terminals F1 and F2 for 90VDC motors with 100VDC fields and 180VDC motors with
200VDC fields. For motors with half voltage fields, 90VDC motors with 50VDC fields and
180VDC motors with 100VDC fields, connect field to terminals F1 and L1. See table 9 for
summary of Field Connections. See figures 9A and 9B for field wiring diagrams.
CAUTION – Shunt-Wound motors may be damaged if field remains powered without
motor rotating for an extended period of time.
TABLE 9 – FIELD CONNECTIONS (Shunt Wound Motors Only)
AC Line Voltage (VAC) Motor Voltage Field Voltage (VDC) Field Connection
115 90 100 F+, F–
115 90 50 F+, L1
230 180 200 F+, F–
230 180 100 F+, L1
230 90* 100
F+, L1
*Step Down operation (see section II C, p. 7).
FIG. 9A – FULL VOLTAGE FIELD FIG. 9B – HALF VOLTAGE FIELD
D. Ground – Be sure to ground (earth) the
control by connecting a ground wire to the
Green Ground Screw located to the right of
the terminal block. (See fig. 1, p. 3)
E. DC Tach-generator Input – If tach-
generator feedback is required, an analog
tach signal must be connected to the
terminal block TB3. (Note: For tach-
generator feedback Jumper J3 must be set
to the "T" position, jumper J6 must be set for the proper tach voltage, and the IR COMP
must be set to minimum (ccw) position.) (See section II F, p. 9.) Connect the tach-
generator so that when the motor rotates the positive tach voltage lead is connected to
T+ and the negative tach lead is connected to T– (See figure 10).
TACHOMETER WIRES MUST BE CONNECTED SO THAT
CORRECT POLARITY IS ACHIEVED WHEN TACH ROTATES
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