User manual Vevor Inverter : 8 free PDF user manuals

Q: Are the two MC4 connectors of the GT-1200 independent or connected in parallel?

The two MC4 connectors of the Vevor GT-1200 are connected in internal parallel to the same charge input. They do not constitute two independent inputs. Technical Configuration Each MC4 connector supports a maximum current of 16 A The input voltage must remain between 18 V and 50 V The open circuit voltage (VOC) of the PV modules must not exceed 50 V (critical safety limit) In practice: You can connect your solar panels to either of the two MC4 connectors, or distribute your installation between the two. However, both connectors feed the same input stage of the inverter, with a common operating voltage. The important limit is to respect the maximum voltage of 50 V VOC, and not to exceed 16 A per connector.

Q: How many input connectors does the Vevor GT-1200 micro inverter have?

The Vevor GT-1200 micro inverter has 2 MC4 input connectors allowing for the connection of solar panels in parallel configuration. Input connector specifications: Maximum current per connector: 16 A Accepted voltage range: 18 V to 50 V (DC) Maximum input power: 1200 W Configuration: parallel connection of photovoltaic sources Important: the open circuit voltage (VOC) must never exceed 50 V , this limit being critical for the safety and performance of the inverter.

Q: How many CSSB-200W solar panels can be connected to the VEVOR GT-1200 inverter?

The VEVOR GT-1200 can theoretically accommodate up to 6 CSSB-200W panels in parallel, since 6 × 200 W = 1200 W, which exactly matches the maximum input power of the inverter. Key specifications to adhere to: Maximum input power: 1200 W Input voltage: 18 V to 50 V (DC) MC4 connectors: 2 connectors available for connection Open circuit voltage (VOC): must not exceed 50 V - this is the critical limit Important point: The GT-1200 manual does not specifically mention the CSSB-200W panels. Before connecting your panels, make sure that their VOC (open circuit voltage) does not exceed 50 V. If the panels have a higher VOC, you will need to reduce the number of connected panels or consider another configuration. The maximum current allowed per MC4 connector is 16 A, which also limits the number of panels you can connect based on their short-circuit current (Isc).

Q: How to change the motor rotation direction with the Vevor A2-8075?

To change the motor rotation direction on your Vevor A2-8075, use the FWD/REV button located on the control panel. Press this button to instantly reverse the direction - the change also works while running, without needing to stop the motor. Required prior configuration Before you can reverse the rotation direction, ensure that the Pn05 setting is correctly configured: Pn05 = 1 : rotation only clockwise Pn05 = 2 : rotation only counterclockwise Pn05 = 3 : bidirectional activation (allows FWD/REV inversion) To allow direction change via the FWD/REV button, make sure that Pn05 is set to 3 . This is the default setting of the inverter. Using with external signals If your inverter is configured to receive external commands (via the Pn04 setting), you can also control the rotation direction using the FWD (clockwise rotation) or REV (counterclockwise rotation) inputs of the inverter.

Q: Can I connect a machine operating at 400V to this inverter?

No, this Vevor AT1-2200X inverter cannot directly power a 400V machine. This device is a welding inverter (MMA and TIG welding) designed to operate on a 220V single-phase input (50/60Hz). It produces a direct current (DC) intended exclusively for welding, not a three-phase alternating current as required by 400V industrial machines. If you need to power an industrial electrical machine at 400V three-phase, you should consider a three-phase converter (400V → 220V) or a rotovario , depending on your specific needs. The Vevor AT1-2200X inverter is only compatible with standard electrodes and welding equipment.

Q: What is error 1 on my Vevor AT1-4000X and how can I fix it?

Error 1 on your Vevor AT1-4000X indicates a "short circuit / current overload / power module protection". Here are the steps to resolve this issue: Press the Start/Stop/Reset button to clear the error and reset the device. Check the output terminal connections (U, V, W) : ensure they are tight and undamaged. The output cables should not have a short circuit. Reduce the motor load if it exceeds the limit. The maximum allowed current is 20 A - do not exceed this. Check the input power supply : the device requires 220 V in single-phase input. An unstable or insufficient voltage can trigger this error. If the error persists after these checks, the device may have an internal fault - contact Vevor support via www.vevor.com/support. Note: Never attempt to disassemble the device yourself - this operation is dangerous and should be performed by a qualified electrician.

Q: What is the difference between the 'stop' state and 'completely off' on the Vevor AT1-4000X?

There is a significant distinction on the Vevor AT1-4000X between these two states: 'Stop' State When you press the stop button on the device, the inverter remains connected to the power (220 V single-phase input) and the motor remains connected (three-phase outputs U, V, W), but the device stops functioning. In this state: The power supply is still active The motor connections remain in place The parameters (P27-P33 and others) can be modified and saved Completely Off This means cutting off the power completely - disconnecting the GFCI 220 V plug from the power source. Key Point for Saving Parameters According to the Vevor AT1-4000X manual, 'modify the parameters in the stop state, otherwise the modified parameters cannot be saved.' This means that if you modify parameters while the device is functioning normally and do not switch it back to stop mode before cutting off, your changes will be lost. The stop state is therefore an essential intermediate step for configuring the inverter.

Q: Why can I no longer modify the settings of my Vevor AT1-4000X?

If your inverter AT1-4000X no longer allows you to modify the settings , there are two main causes: 1. The inverter must be turned off to modify the settings The manual clearly states: “Please modify the settings while in the off state, otherwise the modified settings cannot be saved” . If you try to change the settings while the device is running, the changes will not be saved. Correct procedure: Completely turn off the inverter Press the Programming button to access the settings mode Use the arrow keys to navigate to the desired setting Press Function/Save to access the setting Modify the value using the arrow keys Press Function/Save to confirm the save Press Programming to exit the settings mode 2. A password protection may be active The AT1-4000X inverter has password protection managed by two parameters: P08 : hidden password (always displays 00000) P09 : input value to unlock modifications If a password has been set, you must enter the correct value in parameter P09 to regain the ability to modify the other settings. P09 will be reset when you unplug the power cable. First, ensure that the inverter is turned off, then access parameter P09 to reset the protection if necessary.

Q: How to print the manual of the Vevor AT1-7500X?

Yes, you can definitely print the manual of the Vevor AT1-7500X. Here are the two simplest methods: Method 1: Direct printing from the PDF viewer The built-in PDF viewer on this page has a print function. Look for the printer icon in the toolbar of the viewer and click on it to open your browser's print window. The complete 528-page manual can be printed in one go. Method 2: Download then print Click on the download button (downward arrow) at the top of the page to get the complete PDF file of the manual. Once downloaded, you can open it with any PDF viewer (Adobe Reader, browser, etc.) and start printing from there. This option also allows you to keep a digital copy on your computer. Both methods work perfectly. For large print volumes, consider selecting double-sided printing to save paper - the manual has 528 pages.

Q: How to connect a thermostat for load start?

The manual for the AT1-4000X does not specify the connection details for a thermostat for load start. However, the inverter has a external analog input (terminals VL1/CI) compatible with 0-5V or 4-20mA signals, as well as multifunction inputs X1-X6 that allow for managing different speeds and functions. To connect a thermostat: If your thermostat sends an analog signal (0-5V or 4-20mA), connect it to the VL1 and CI terminals of the inverter. You will then need to program the corresponding parameter in setup mode (Programming button). If your thermostat sends a simple contact signal (open/close), you can use one of the multifunction inputs (X1 to X6) by short-circuiting X with COM according to the desired configuration. Refer to your thermostat's user guide to know the type of signal it emits (analog or contact), then refer to the multifunction input table in the AT1-4000X manual to correctly configure the assignment. If you need specific details on programming the inverter parameters (P27-P33 for speeds), refer to the PDF manual in the Parameters and multifunction inputs section.