New energy dynamometer battery simulator one-to-two safety error-proofing device

The utility model provides a one-to-two safety error-proofing device for a new energy dynamometer battery simulator, which is characterized in that a mode change-over switch is additionally arranged on the new energy dynamometer battery simulator, and when the mode change-over switch rotates to an A mode, an A mode signal is sent to a logic controller; the logic controller carries out logic analysis according to the received mode signal and the operation state signal and outputs a logic analysis result to a test bench of a test room, and the test bench allows normal operation of the new energy dynamometer battery simulator test equipment only after receiving a safety signal of the logic controller. Otherwise, the rack cannot normally use the new energy dynamometer battery simulator, the new energy dynamometer battery simulator operates in one-to-two mode, each terminal box is electrified, the terminal box is not allowed to be opened during operation, after the terminal box is opened, a detected door magnetic