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4.7 Permanent Magnet (PM) Motor Armature Connection
Connect the motor armature positive lead (+) to Terminal “A+” and negative lead (-) to Terminal “A-”, on
the Barrier Terminal Board, as shown in Figure 2-3. Be sure the correct Plug-In Horsepower Resistor
®
and Armature Fuse are installed, as described in Section 4.
4.8 Shunt Wound Motor Field Connection (Shunt Wound Motors Only)
CAUTION! Do not connect motor armature leads to Terminals “F+” and “F-”. Do not use
Terminals “F+” and “F-” for any purpose other than to power the field of a shunt
wound motor. Shunt wound motors may be damaged if the field remains
energized without armature rotation for an extended period of time.
4.8.1 Full Voltage Field
Connect the field positive (+) lead to Terminal “F+” and the negative lead (-) to Terminal “F-”, on the
Barrier Terminal Block, and as described in Table 4-4. See Figure 2-3.
4.8.2 Half Voltage Field
For 50 Volt DC with 100 Volt rated armature, use Terminal “L1” and F+, on the terminal board, as
described in Table 4-4. See Figure 2-3.
Table 4-4 Field Connection (Shunt Wound Motors Only)
AC Input Voltage
(Volts AC)
Voltage Selector
Switch (Position)
Armature Voltage
(Volts DC)
Field Voltage
(Volts DC)
Terminal
Connections
115
115
0 – 90
100
F+, F-
50
F+, L1
208/230
230
0 – 180
200
F+, F-
0 – 90*
100
F+, L1
*Step-down operation.
