LEESON SCR Thyristor Motor Control - Manual (Page 22)

16 Installation SPEEDMASTER™ OPERATION MANUAL
Warning
Do not connect this equipment with power applied.
Failure to heed this directive may result in fire or serious
injury.
Leeson strongly recommends the installation of a
master power switch in the voltage input line, as shown
in Figure 9 (page 18). The switch contacts should be rated
at a minimum of 200% of motor nameplate current and 250
volts.
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Connect the power input leads, an external line fuse and a DC
motor to TB501 on the drive’s printed circuit board (PCB) as
shown in Figure 9, page 18.
Motor
Leeson drives supply motor voltage from A1 and A2 terminals. It
is assumed throughout this manual that, when A1 is positive with
respect to A2 , the motor will rotate clockwise (CW) while
looking at the output shaft protruding from the front of the motor.
If this is opposite of the desired rotation, simply reverse the
wiring of A1 and A2 with each other.
Connect a DC motor to PCB terminals A1 and A2 as shown in
Figure 9. Ensure that the motor voltage rating is consistent with
the drive’s output voltage.
Connections