Question about wiring a Curtis 1253-8001

Joined
Feb 16, 2024
Messages
3
Location
Saint Paul
Hi,

I am going to use a Curtis 1253-8001 for my initial proof of concept installation. 80v, 600A, running a DC series wound forklift motor.

I understand how to wire the low voltage potentiometer leads (5v+=hi pot, 5v-=lo pot, wiper in the middle); I know how to wire the high voltage leads (M-, B+, B-, B+ to the motor as well).

HOWEVER

I am puzzled as to what to wire the interlock wire to (the 5v circuit or the 80 v circuit?) and what to wire the SS1 wire to (5v +?)

Will it work without the interlock and SS1, or must those be hooked up? I'd delete them, just to get it working, and figure it out later if need be. I just want the motor to turn!

Any guidance would be much appreciated, I'm kind of pulling out my hair, and at my age, it doesn't grow back so easily.
 
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