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Timer function
The timer function can be used individually or together
with the ramp function. If A1FN is set to TIMR, alarm 1
serves as timer (or alarm 2 if A2FN = TIMR). The value
for the timer is set in the user menu in the TIME
parameter. The timer starts when the process has
reached the setpoint (SP1 or SP2).
Example:
Set are, A1FN = TIMR, IN1U = °C, DP1 = NODP, TIME = 30,0, SP1 =400°C.
The process starts before 200°C is reached, the set point SP1 is changed to 200°C.
When the 200°C is reached, the timer is activated. The time value of the timer can be
changed at any time before expiration, without disturbing the timer. In the example,
the time is changed to TIME = 40.0 after 28 min. The behavior of the process and
alarm 1 is shown in picture.
Timer function
The timer output remains set until either the mains voltage is switched off or the
event input has been switched.
Note: The timer function can be set only for A1FN or A2FN, if both
are set as timer, error code appears ER07.
Ramp & Timer Function
The ramp and timer functions can be combined.
Example:
Set are, SPMD = HHR, IN1U = PU, DP1 = 2-DP, RAMP = 60,00, A2FN = TIMR,
TIME = 20,0. The process starts at 0,00, SP1 = 30,00, SP2 = 40,00, the timer output
(alarm 2) is connected to the event input.
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Selection:
A1FN or A2FN =
Setting:
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(Timer)
= TIME
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