The control function of the full series DCVV control cabinet is achieved by its STEP full serial elevator control system. The elevator control cabinet supports many control modes such as duplex, group control, remote control, etc. By adopting CAN-Bus serial communication, the wiring cost is reduced due to less cable used, while the elevator is safer and more reliable. The electric drive uses a MENTOR II DCVV speed regulator produced by British CT, and there is no need for electric generator set. By changing the voltage on the brush of the motor, the motor speed can be modulated. Hence, an elevator controlled by the DCVV control cabinet offers a comfortable feeling, improved operation efficiency and reduced energy consumption. The full serial DCVV control cabinet uses an absorption circuit and a DC reactor to greatly reduce the operation noise. Our control cabinet is suitable for different kinds of DC elevators