MainsPro, SW version 1.4, ©ComAp – January 2013
MainsPro Installation and Operation Guide
Binary switches connection
MainsPro provides 4 galvanically isolated binary switches with configurable functionality. These inputs
allow connection of any voltage free contact between the common terminal BIC and the appropriate
functional contact (BI2 – BI4).
Particular functions (External Trip, Fault Reset, Alternative settings, Disable, CB Feedback) are freely
assignable by setpoint in Basic: f(BI).
For full description see chapter “Library of binary switches”.
Measurement range
MainsPro allows using multiple voltage ranges on the measurement inputs with unchanged
measurement accuracy. The following ranges are applicable:
230 V - this range applies in case of "star" connection of the 3-phase system using nominal
230V phase to neutral. It may be also used for single-phase applications 230V phase to
neutral. Overshoot by 30% up to 290V is possible for this measurement range. For this case,
set the setpoint Basic: Uin to 230/400V. MainsPro will adjust automatically the measurement
method, to assure the defined accuracy for the measured voltage 230 V.
400 V - this range applies in case of "delta" connection of the 3-phase system using nominal
400V phase to phase. Overshoot by 30% up to 520V is possible for this measurement range.
For this case, set the setpoint Basic: Uin to 230/400V. MainsPro will adjust automatically the
measurement method, to assure the defined accuracy for the measured voltage 400 V.
120 V - this range is applicable in countries using 120 V nominal voltage phase to neutral.
Another application is for the high-voltage and other applications, using voltage transformers
from rated voltage to 100 V. The guaranteed accuracy applies to both ranges 100 and 120 V.
Overshoot by 30% up to 156V is possible for this measurement range. For this case, set the
setpoint Basic: Uin to 120V.
Wiring examples
This chapter provides examples of possible wiring of MainsPro which can be used as a preparation
concept of wiring scheme.
Note:
ComAp bears no responsibility of functionality of the solution where these concepts are applied.
1. Under normal conditions the undervoltage coil is powered. In case of fault, the voltage is lost
and the breaker undervoltage coil opens.
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