Where to restart the PV PID module
To restart a PV PID module, you need to turn off the AC and DC circuit breakers, set the module type via jumper terminals, and then power it back on following the manufacturer's instructions.
Step-by-Step Restart Procedure
- Power Down the Module
- For SUN2000 inverters, turn off the AC side circuit breaker of the PID module.
- For SUN8000 inverters, turn off both DC and AC side circuit breakers to ensure complete isolation before maintenance .
- Access the Jumper Terminals
- Loosen the two captive screws on the PID module and remove the front panel to access the jumper terminals .
- The jumper determines the PV module type (P-type or N-type) and must match the modules in your array.
- Set the PV Module Type
- For P-type PV modules, insert the jumper into the J61 port.
- For N-type PV modules, insert the jumper into the J62 port .
- Ensure the jumper is securely seated to avoid incorrect PID operation.
- Reinstall the Front Panel
- After setting the jumper, replace the front panel and tighten the screws to secure it.
- Power Up the Module
- Turn on the DC and AC circuit breakers in the correct sequence according to your inverter type.
- The PID module will resume operation and begin mitigating PID effects, often using night mode or automatic mode to reverse degradation over time .
Additional Considerations
- Grounding: Ensure the negative DC pole is properly grounded if your inverter supports this mode, as it helps reduce PID risk .
- Monitoring: Recovery from PID may take several weeks to months, depending on module type, degradation depth, and environmental conditions .
- Maintenance: Regularly check jumper settings and module performance to ensure PID mitigation is effective. Following these steps ensures that the PV PID module is correctly restarted and configured to continue protecting your solar array from potential induced degradation.
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