The load of the access control power supply is too large! It is mainly manifested by too many electric locks! The standard power supply is a 12V / 5A linear power supply. It can meet (with the wiring specifications and a large cross-section area) the power supply of up to four doors (4 electric mortise locks or 3 magnetic locks). A double door magnetic lock is converted into the power of two single door magnetic locks. If the system exceeds this configuration, for example: more than 4 electric mortise locks or more than 3 magnetic locks, you need to add a power supply and the original power distribution power supply. Note: If some electric locks have too much power, the load capacity of the power supply will be weaker.
If the power is not enough, it may not show up when debugging, unless it is not enough. It is manifested that sometimes the door can be locked, sometimes it can't be locked, and it will even grab current from the controller, causing the controller to restart or even crash.
Because the effective power of the linear power supply is not high and it generates heat, the effective power generally ranges from 40 to 70%. The nominal 5A power supply has an effective current of about 3A. However, the linear power supply runs stably with less interference and is suitable for long-term stable running equipment. It is a type of power supply commonly used in access control equipment at home and abroad. Some engineering companies ask whether it is possible to use a switching power supply. The switching power supply has high power and high effective power. We do not recommend using a switching power supply. The switching power supply generally has a high frequency ripple, which will affect the stability of the host operation.
For more information on smart access control systems, visit the official website of Doo Technology: hermaness.com