Nc Obligation - For Normally Closed Contact - ABB 2CLA234009N234001 Instrucciones De Instalación, Uso Y Mantenimiento

CONFIGURATION MENU

12.10.4 NC OBLIGATION - for normally closed contact

Do not enable the element nC OBLIGATION without having previously connected
to terminals 1 and 2 (AUX) a switch or other device that allows the change of status
of OFF mode to automatic operation (running program) and vice versa.
Choosing this function allows a remote NC contact to be connected which when
opened places the chronothermostat in OFF mode (switched off) with antifreeze
temperature t, unless previously disabled. In this status, it will not be possible to
actuate the buttons of the chronothermostat to change the operating status.
When the contact is closed, the chronothermostat will restart normal operation of the
program that was active prior to the forcing. Following the path of the button Menu
-> CONFIG SEt -> INPUT SEt -> choose the element nC OBLIGATION. Press the
«OK» button to confirm. Press the back button to exit.
e.g. Switch
e Close contact
e Open contact
NOTE: the contact open and close commands are operational in a period
of 10 sec.
Chapter 12
Chronothermostat operation
in OFF mode with t1 antifreeze
operation of the running program
ABB ABB
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