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r.o.C. Function (rate of Change)
The function r.o.C is usefull to detect the changing speed of display value, depending on programmed setpoint polarity we
detect the increasing or decreasing.
In mode r.o.C., if the setpoint values is, for example = 1000, that means that the alarm will be activated when the display
value increase more than 1000 points per second.
If the setpoint value were, for example = -1000, the alarm would be activated when the display value decrease with a speed
greater than 1000 points per second.
The r.o.C. alarms have the same programmable options than the rest of alarms, namely, you can choose the mode of action,
HI-LO, NO-NC, Latch, delay-histeresys, LED-LED+blink. The only difference is if delay is selected, on the
apply to the activation and deactivation, but only to the deactivation of the alarm. This function is applicable separately to
activate each of setpoints.
Programming:
If has been programmed input: Procces, Potentiometer, Load Cell in the submenu 31 CoMP after the "–VAL-" pressing the
key gets the function r.o.C., or in the submenu 32 gets after the MaxF or totAL (if activated).
If has been programmed input : Temp, in the submenus 31, 32, 33, 34 gets after the –VAL-
Note: The ovflo situation (be by sensor break, or excess of input siignal, or incorrect programming) leads to the relays to the
rest situation that corresponds according to the program established.
PROCESS, POTENTIOMETER and LOAD CELL
nEt
GroS
(*) Only Setpoint 2
(**) Only if the totalized or integrator variable exist
THERMOCOUPLE and Pt100
nEt
PEAK
PEAK
VAL
MAX(*)
VAL
roC
MAXF(*)
totAL(**)
roC
r.o.C
. alarms not
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