LEESON SCR Thyristor Motor Control - Manual (Page 29)

23 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.
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For all Leeson cased controls except the 174709 series, connect
the power input leads and a DC motor to the drive’s terminal
block as shown in Figure 12 (page 24). If you use a Leeson
174709 series cased control, connect the control as shown in
Figure 13 (page 24).
Line fusing
Line fuses are preinstalled on all cased drives. Models 174307,
174308, 174100, and 174105 have 15A line fuses; model
174709 has 30A line fuses; and models M1740005 and
M1740006 have 3A line fuses. If the horsepower rating of the
motor being used is less than the maximum horsepower rating of
the drive, the line fuse may have to be replaced with a lower
rated one. Refer to Table 1 on page 14 for recommended line
fuse sizes.
Connections