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E7

E7 – Terminal number configuration error

Siemens · IQ-400 Access Control Systems

What does E7 mean?

The Siemens IQ-400 panel has detected an issue with its terminal number configuration, requiring the system to be readdressed to correct the settings.

Common Causes

  • Incorrect terminal number setting for the IQ-400.
  • Configuration data corruption.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Readdress the IQ-400 panel according to the installation manual's instructions for setting the terminal number.

  2. 2

    Remove the battery from the IQ-400 for 5 minutes, then reinsert it and restart the panel.

  3. 3

    Verify the address settings in the PC software to ensure they are consistent with the physical panel settings.

Browse all codes in this manual (21)
Verified technical data. Last updated: April 2026

Related Faults

Door Sense LED Blinks 1 time every 2 secondsDoor Sense LED Blinks once every 2 seconds – Fault: Open circuitDoor Sense LED Blinks 1 time/secondDoor Sense LED Blinks 1 time/second – Fault: Short circuitDoor Sense LED Blinks 4 times/secondDoor Sense LED Blinks 4 times/second – Circuit NOT calibrated
Source: Siemens IQ-400 Access Control Systems
Open Manual (Page 82)Search more codes in this manual