Hello All,
This is my first time here and hopefully someone can help me solve this problem
I want to control 24V DC motor directionally using Pololu driver 18v25 https://www.pololu.com/product/2994
Above is my circuit diagram, I am using
Then, I engaged the E-Stop and cut off the power to Pololu 18V25.
When I disengage the E-Stop, the DC Converter suddenly powered off. The DC converter has a overcurrent and overtemperature limit feature.
I cannot turn on the DC converter again unless I cut off the main power supply, wait for a few seconds (15 seconds) and turn on again the main supply
I found few observations using my multimeter
I don't know where to start troubleshooting
Please help me!
Thank you!
This is my first time here and hopefully someone can help me solve this problem
I want to control 24V DC motor directionally using Pololu driver 18v25 https://www.pololu.com/product/2994
Above is my circuit diagram, I am using
- 10A circuit breaker
- SSR (Solid State Relays) with normally open (NO) and the coil is connected to the E-Stop, the coil operated at 5-36V and the contact is 0-220V 25A
- E-Stop always supply 24V in normal condition
- DC converter with 350W power 48V to 24V, Meanwell SD 350 C -24
- Motor with rated current 5A
Then, I engaged the E-Stop and cut off the power to Pololu 18V25.
When I disengage the E-Stop, the DC Converter suddenly powered off. The DC converter has a overcurrent and overtemperature limit feature.
I cannot turn on the DC converter again unless I cut off the main power supply, wait for a few seconds (15 seconds) and turn on again the main supply
I found few observations using my multimeter
- The DC Converter VO+ and VO- is connected using connectivity feature in Multimeter, I know that DC converter output is only an Transformer which means is just a inductor or coil of wires. I am not sure if this is normal.
- The SSR contacts cable is somehow connected even when it is powered off using connectivity feature
- I tried to unplug the wire and using the connectivity feature on the contact itself, it is not connected which leads me to
- Tried connectivity feature on the wire connected to the contacts which one comes from Circuit Breaker and another from DC Converter, which somehow is connected!
I don't know where to start troubleshooting
Please help me!
Thank you!