Siemens CU230P-2 Operations Instructions download pdf (Page 78)

Commissioning

4.5 Commissioning with STARTER

Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN

76 Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD

Trigger

You can create your own start condition (trigger) for the trace. With the factory setting

(default setting) the trace starts as soon as you press the

button (Start Trace). Using the

button

, you can define another trigger to start the measurement.

Using pretrigger, set the time for the recording before the trigger is set. As a consequence,

the trigger condition traces itself.

Example of a bit pattern as trigger:

You must define the pattern and value of a bit parameter for the trigger. To do so, proceed

as follows:

Using

, select "Trigger to variable - bit pattern"

Using

, select the bit parameter

Using

, open the screen form in which you set the bits and their values for the start

condition

',

',

',

① Select the bits for the trace trigger, upper line hex format, lower row binary format

② Define the bits for the trace trigger, upper line hex format, lower row binary format

Figure 4-5 Bit pattern

In the example, the trace starts if DI0 and DI3 are high and DI2 is low. The state of the other

digital inputs is not relevant for the start of the trace.

Further, you can either set an alarm or fault as start condition.

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 345 346

No comments

Siemens CU230P-2 Operations Instructions Page 78