OMICRON 183
Off-service diagnostic methods
Supply settings
2,3
Select the preconfigured motor supply setting from the asset data or select
Custom to enter custom settings.
Motor supply voltage Voltage of the motor supply
Click AC or DC for AC or DC motor supply voltage respectively.
Test frequency Motor supply frequency (AC only)
Max. supply duration Maximum duration of supplying the motor if not stopped automatically
Main contact
Contact system Contact system of the circuit breaker under test
Select PIR to measure timing of contacts with pre-insertion resistors.
Test current per
channel
5
Output current of each CB MC2 current channel
Other
Grounding Select the grounding condition of the circuit breaker under test.
Current clamp settings
6
Channel Group B I/O socket
Ratio Current clamp ratio
I max Maximum current of the selected probe range
Sequence
Test sequence Test sequence to be performed
Trigger setting
7
Threshold Threshold value of the trigger signal
The measurement starts if the trigger signal rises above (rising edge) or falls
below (falling edge) the threshold.
Edge type Rising or falling edge
1. Only available if the trip and/or close signals are configured on the IOB1 module.
2. Only available in the guided test workflow and if CIBANO 500 is selected as source
3. Data taken from the nameplate
4. Only available if Control board is selected as supply source.
5. Only available for Standard contact system. We recommend using a test current of 100 A per CB MC2 channel for the most
accurate results.
6. Only available if a current clamp is configured. The channel value displayed refers to the group B of the I/O sockets on the
CIBANO 500 side panel. The B1…B4 sockets can be configured as Iclamp1…Iclamp4 respectively.
7. Only available if VIN, or one output in group A or group B is set to Trigger IN.
Table 17-40: Settings of the Timing test (continued)
Setting Description
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