Test Stop Mode 2 - Siemens SINAMICS S120 Function Manual

Commissioning
7.3 Commissioning TM54F by means of STARTER/SCOUT
7.3.4.3

Test stop mode 2

Test stop mode 2
Figure 7-7
This mode only uses the external feedback signal (DI) to test the F-DO output transistors
and to test the actuator itself.
DO+
Step 1 OFF
Step 2 ON
Step 3 OFF
Step 4 ON
Step 5 OFF
Test sequence for test stop mode 2
For a circuit with two relays with positively driven feedback signal contacts (fault exclusion)
or an actuator with separate feedback signal (e.g. a solenoid valve), this sequence can be
used to ensure that both the F-DO output transistors as well as the actuator can be switched
off.
Before testing the F-DOs, the F-DIs are tested by switching off the power supply (L1+, L2+).
The system waits for the parameterized delay time p10001 (SI delay time for test stop)
between the individual test steps before the expected response is checked.
136
F-DO circuit, test stop mode 2
DO- Expected response, DI signal
OFF HIGH
ON LOW
ON LOW
OFF LOW
OFF HIGH
Function Manual, (FHS), 11/2009, 6SL3097-4AR00-0BP0
Safety Integrated