The Delta DD series elevator door control drive is an intelligent drive with outstanding features that include a modularized design for easy removal and installation of terminal blocks, a power switch designed for safety, and a built-in digital keypad that provides quick operation control.

Delta VFD004DD21A – Elevator Door Control Drives

Door width is determined automatically and is recorded in related elevator parameters.

• Smooth door re-open curve reduces vibration
• DEMO mode
• PM motor A, B, Z, -Z and Delta@@s ECMD-B9160GMS series PM motor
• Supports open collector and voltage output encoder (5~12VDC) for induction motors
• Blockage detection, even if the hardware safety device has failed, VFD-DD can re-open the door according to current detection.
• Precise torque detection, keeps the door open/closed, when the door open/close time exceeds warning, it forces door open