MI 3321 MultiservicerXA
Machine testing operating mode
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Examples of voltage measurement results
Displayed results for single phase system:
Ul-n ........................ Voltage between phase and neutral conductors,
Ul-pe ...................... Voltage between phase and protective conductors,
Un-pe ..................... Voltage between neutral and protective conductors,
f.............................. frequency.
Displayed results for three-phase system:
UL1-L2 ................... Voltage between phases L1 and L2,
UL1-L3 ................... Voltage between phases L1 and L3,
UL2-L3 ................... Voltage between phases L2 and L3,
1.2.3 ....................... Correct connection
– CW rotation sequence,
2.1.3 ....................... Invalid connection
– CCW rotation sequence,
f.............................. frequency.
Note:
Consider any displayed warning before starting test!
9.2.10 Functional test
In its simplest form a functional check is simply a check to ensure that the machine is
working properly.
Scope of test
Check following items while the machine is operating:
- Temperature regulators, monitors,
- RCDs and other disconnection devices,
- Operation of functional disconnecting devices,
- Operation of switches, lamps, keys,
- Rotating parts, motors, pumps,
- Power consumption,
- Etc.
Especially safety relevant functions should be checked..
