LEESON Chassis Mount PWM Control: 175292.00 - Manual (Page 18)

12 Installation
Connect a DC motor to PCB terminals A1 and A2 as shown in
Figure 7, page 13. Ensure that the motor voltage rating is
consistent with the drive’s output voltage.
Power input
Warning
This drive is not diode-protected from reverse battery voltage.
You must assure that POS (+) is wired to +VDC IN and NEG
(–) is wired to –VDC IN.
ƽ
Connect the DC power leads to terminals + VDC IN and - VDC IN,
or to a single-throw, single-pole master power switch as shown in
Figure 7, page 13 (recommended).
Fuse
Wire a power input fuse between the stop switch (if installed) and
the + VDC IN terminal on the circuit board. The fuse should be
rated at 150% of input voltage and 150 - 200% of maximum motor
nameplate current.