Notes and Variants
If vehicle won’t move:
(Field wires) connect to the Forward/Reverse (F/R) switch. Troubleshooting & Support curtis 1520 controller manual
Connects to the positive armature terminal of the motor.
Pin 5 (or a configured VCL input) must see battery voltage (or ground, depending on config) before the 1520 will enable the H-bridge. Many new users mistake a "dead controller" for simply having the interlock circuit open. Notes and Variants If vehicle won’t move: (Field
Automatically reduces current if the controller overheats.
Check heavy-gauge terminal bolts for proper torque tightness to eliminate resistive heating. Many new users mistake a "dead controller" for
Overview
As of the current year, you can find the official manual under these file names:
Inspect forward/reverse contactors for pitted or worn contacts.
Connect a power resistor across the controller's B+ and B- terminals to bleed off residual energy. Mounting the Controller