Baldor NEMA-4X, Installation And Operation Manual

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TABLE 7 - ARMATURE FUSE CHART
Motor Horsepower
90 VDC 180 VDC
Approx. DC Motor
Current Amps
Fuse Rating
(AC Amps)
1/8 1/4 1.3 2
1/6 1/3 1.7
2
½
1/4 1/2 2.5 4
1/3 3/4 3.3 5
1/2 1 5.0 8
3/4
1
½
7.5 12
1 2 10.0 20
Note: Armature fuse is not supplied and must be installed for control to operate.
4.2 AC Line – Connect AC Line to terminals L1 and L2. (Be sure that Jumpers J2A and J2B
are set to the correct position to match the AC line voltage. See Table 9 on page18 and
Figure 18, on page 26.
TABLE 8 - TERMINAL BLOCK WIRING INFORMATION
Supply Wire Gauge
(Copper Wire Only (AWG))
Terminal
Block
Designation
Connection
Designation
Minimum Maximum
Maximum
Tightening
Torque (lb – in)
TB1 A1, A2, L1, L2 22 12 12
TB2 F1, F2 22 14 3.5
TB3 T+, T- 22 14 3.5
4.3 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 Figure 5.
4.4 Motor Armature –
Connect motor armature
leads to terminals A1 (+) and A2 (–). Be sure
that jumper. See Section 6, on page 23 for
Jumper J3 settings.
WARNING! – DO NOT CONNECT
SWITCHES OR RELAYS IN SERIES WITH
THE ARMATURE. ARMATURE
SWITCHING CAN CAUSE CATASTROPHIC
FAILURE OF MOTOR AND/OR CONTROL.
DO NOT BUNDLE AC AND MOTOR WIRES
WITH OTHER WIRES (e.g.,
POTENTIOMETER, ANALOG INPUT,
FORWARD-BRAKE-REVERSE, ETC.)
FIGURE 5 – CONNECTION DIAGRAM
GROUND
SCREW
A1 A2 L1 L2
TB1
M
+
-
ARMATURE AC LINE
INPUT
Torque Specification:
Refer to Table 8