Buggies Gone Wild Golf Cart Forum - View Single Post - DCS controller testing and ITS throttle test

JohnnieB · 05-17-2015, 08:37 AM

With all connectors connected, Pin-2 (black wire) should be slightly above 14V, but less than 16V.

Pin-1 (white wire) should read between 0.45V and 0.53V when pedal is pushed just far enough for solenoid to click and then climb smoothly to above 1.5V as pedal is slowly pushed to floor.

If the 0.5V to 1.7V reading you listed are at Pin-1, your ITS is working okay.

The red flag that is waving at me is the voltage reading between the B- and B+ terminals on the controller.

When the solenoid is energized, the voltage between the controller's B- and B+ terminals should be equal to Pack voltage.

Since you only have 36V, either the battery pack is less than 50% charged, or the solenoid contacts are not closing.

Does the solenoid click when pedal is pushed?

What is the battery pack voltage? Should be at least 38.2V with full charged new batteries.

-------------
The voltage between A1 (which is labeled M- on a DCS controller, but goes to A1 stud on motor) and B+ starts at Zero with pedal up and increases to FULL pack voltage (less about 0.1V per 100A of current flow) with pedal on floor.

The voltage between A1 and B- starts at FULL pack voltage with pedal up and decreases to Zero (plus about 0.1V per 100A of current flow) when pedal is on floor.

05-17-2015, 08:37 AM	#2
JohnnieB Techno-Nerd Join Date: Jun 2011 Location: West Virginia Posts: 19,654	Re: DCS controller testing and ITS throttle test With all connectors connected, Pin-2 (black wire) should be slightly above 14V, but less than 16V. Pin-1 (white wire) should read between 0.45V and 0.53V when pedal is pushed just far enough for solenoid to click and then climb smoothly to above 1.5V as pedal is slowly pushed to floor. If the 0.5V to 1.7V reading you listed are at Pin-1, your ITS is working okay. The red flag that is waving at me is the voltage reading between the B- and B+ terminals on the controller. When the solenoid is energized, the voltage between the controller's B- and B+ terminals should be equal to Pack voltage. Since you only have 36V, either the battery pack is less than 50% charged, or the solenoid contacts are not closing. Does the solenoid click when pedal is pushed? What is the battery pack voltage? Should be at least 38.2V with full charged new batteries. ------------- The voltage between A1 (which is labeled M- on a DCS controller, but goes to A1 stud on motor) and B+ starts at Zero with pedal up and increases to FULL pack voltage (less about 0.1V per 100A of current flow) with pedal on floor. The voltage between A1 and B- starts at FULL pack voltage with pedal up and decreases to Zero (plus about 0.1V per 100A of current flow) when pedal is on floor.