Perhaps is an old subject, but I have not found nothing in this forum, I request excuses for that reason, and for my english. Sorry.

Code:
 
set %value 50000

alias pr1 { 
.timerpr1 0 $calc(%value * 60) echo -a TIEMPO UNO
.timer 1 5 echo -a TIEMPO DOS 
}  

alias pr2 timerpr1 off


With values between 35791~71582 the first timer works incorrectly. And show the ECHO every 1 second.