Question about wiring a Curtis 1253-8001

[Thaddeus_the_Bold]

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.

 

[rob1981]

the KSI needs to see pack voltage , so a simple feed from the B+ will solve the issue// this turns on power, but logic might be j1-3 for example./ that also needs cap voltage

 

[rob1981]

if you need help , message me , I'm very well versed with programming Curtis controllers and have a prgrammer

 

[rob1981]

the interlack also needs pack voltage , although it can be turned off in programming if you're only using one of the SS inputs.. so lets say you choose ss4 , the other 3 can be turned off by default.. ALso , the potentiometer is 2 wire for 0-5k , not 3.

 

[rob1981]

0-5k is option 0 in throttle selection.