Gira KNX 2139 00 Product Documentation page 102

Valve outputs | Short-circuit and overload detection
Image 19: Weak overload at valve output 2 / second testing cycle
On next error detection in group 1...3: Test switch-on time: 1 s
Example 3
Error = Total overload in output group "Output 1 to 3".
The overload of individual valve outputs is so weak that, during the testing cycles, no
output can be clearly identified as overloaded or having shorted during a test switch-
on time of 4 minutes. This produces the following sequence...
Image 20: Total overload in output group 1...3 / first testing cycle
On next error detection in group 1...3: Test switch-on time: 10 s
It should be expected that, in normal operation, an overload will again be detected in
the previously affected output group...
Image 21: Total overload in output group 1...3 / second testing cycle
On next error detection in group 1...3: Test switch-on time: 1 min.
It should be expected that, in normal operation, an overload will again be detected in
the previously affected output group...
Image 22: Total overload in output group 1...3 / third testing cycle
On next error detection in group 1...3: Test switch-on time: 4 min.
It should be expected that, in normal operation, an overload will again be detected in
the previously affected output group...
Heating actuator 6-gang with controller | Order no. 2139 00 | 21393100 Page 102 of 257