ZIEHL MS 220 DA, Operating Instructions Manual

Page: 40 / 48

4.1.4 Startup
After installation and before starting the system, the correct function of the motor protection device must be tested using resistance simulation on the
sensor input. This test must also be done after modifications in the installation.
In the context of service work, these tests should also be performed:
- Testing short circuit: Resistance 20 Ω in parallel with the sensor input
- Testing line breaks: Disconnect sensor line
- Testing temperature: Resistance of 50… 1500 Ω increase to 4000 Ω
Tripping of the motor protection device is displayed on the converter and must be manually reset.
The permissible ambient conditions must be observed (see electrical data).
NB!
Refer to MCB 112 manual, ZIEHL part for detailed information regarding commissioning test and wiring.
NB!
If conformance with a SIL (EN 61508) is required, then the commissioning test must be performed at least once per year, in order to
assure the PDF of 4,1*10
-3 . Refer to MCB 112 manual, ZIEHL-part for detailed information.
MCB 112 VLT ® PTC Thermistor Option 4 How to Install
MG.33.V2.02 - VLT ® is a registered Danfoss trademark
15
4