Energy storage unit cannot be synchronized (timeout)

 

 

Problem

The energy storage unit cannot be synchronized. The "DC synchronization" mode signals a timeout error or other error messages.

Remedy
  1. Check if a firmware update from V1.0x to 1.04 or higher has been performed for the MDP92A.
    • If such an update has been performed, check whether the "Application limit – current A‑side negative" and "Application limit – current B‑side positive" are configured to a value greater than 0 A. The configuration of these application limits can be viewed in the configuration of the device in the "Monitoring functions" configuration menu in the "Limit values" submenu. A reset to the delivery state is necessary so that the device can set the correct current limits.
  2. Check the connection of the wiring.
    • If device inputs and outputs are to be used: The feedback contact of the main switch/fuse must be connected to DI 02. The synchronization contactor is controlled via DO 02. If a multi-stage fuse concept is used, the feedback contact of the contactor for bridging the lower fuse is connected to DI 01 and the bypass contactor is controlled via DO 01.
  3. Check whether the application limits in the device are configured accordingly.