conminar

conminar⇒ vtr (exigir el cumplimiento) (legal) order vtr; demand vtr

El juez conminó al imputado a presentarse todas las semanas en el juzgado.
The judge ordered the accused to appear in court every week.

conminar vtr (amenazar) admonish, threaten vtr

La Delegación de Hacienda les conminó al pago inmediato de la deuda.
The Finance Office admonished them to pay the debt immediately.

conminar vtr (apremiar, urgir) press, pressure vtr; order, compel vtr (formal) enjoin vtr

1 (=amenazar) to threaten (con with )
2 (=avisar) to warn officially
3 (Méx) (=desafiar) to challenge

http://www.wordreference.com/es/en/translation.asp?spen=conm...

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Note added at 3 hrs (2018-04-14 18:36:03 GMT)
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I would use the answer suggested in an earlier question: periodic penalty payment

https://www.proz.com/kudoz/spanish_to_english/law_general/51...

'Commitory' doesn't seem to exist, the word is 'comminatory', although I don't think it's quite the same thing.

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Note added at 3 hrs (2018-04-14 18:38:31 GMT)
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In law, a comminatory is a clause inserted into a law, edict, patent, etc., describing a punishment that is to be imposed on delinquents, which, however, is not in practice executed with the rigor that is conveyed in the description, or not even executed at all.

Thus, in some countries, when an exile is enjoined not to return on pain of death, it is deemed a comminatory penalty, since, if he did return, it is not strictly executed, but instead the same threat is laid on him again, which is more than comminatory.

https://en.wikipedia.org/wiki/Comminatory

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Note added at 3 hrs (2018-04-14 18:44:37 GMT)
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How about 'coercive fine'?

A coercive fine is a continuous fine that becomes effective from a specified deadline for complying with an order, if the deadline for compliance with the order is not met. The Ministry may in special cases reduce or waive a coercive fine that has accrued.

The Ministry may by regulations adopt further provisions on setting and imposing coercive fines, the time period for which they are to apply, and provisions on interest and surcharges in the event that a coercive fine is not paid by the due date.

A coercive fine may be collected through a sales organisation by deducting the amount from payments for catches.

https://www.unodc.org/cld/en/legislation/nor/havressurslova_...