EVCO EVC30S40J7XXX09 - Manual (Page 8)

8/13
4. REGULATION
4.1. Stop
The display is on, LED L1 is off; the outputs are off, temperature regulation is not active.
The temperature alarm is disabled.
4.2. Pre-heat
The output is activated cyclically during pre-heat mode (parameters P9, P10) in order to
prevent sudden temperature increases. Pre-heating ends at first time the threshold
established with parameter P8 is reached. LED 1 is flashing, LED 2 is only flashing if the
instrument is set-up to pass to preservation mode at the end of pre-heat mode, L2 is off
otherwise.
To activate the function
• If the instrument is in the STOP status and P5 = 1, press the [START] key for 1
second. At the end of pre-heating, in automatic mode, regulation on the work set-point
SP will be the P.I.D. type. If the temperature is equal to or over P8 at the time of
START, the instrument passes directly to main regulation.
• If the instrument is in the STOP status, press the [MELT] key for 1 second before
pressing the [START] key. The instrument passes to preservation mode at the end of
pre-heat mode. If the temperature is equal to or over P8 at the time of START, the
instrument passes directly to preservation mode.
• If the instrument is in start status, but has not yet reached the threshold established
with parameter P8, press the [MELT] key for 1 second. The instrument passes to
preservation mode at the end of pre-heat mode.
4.3. Preservation
Regulation on the threshold established with the parameter P8 is the P.I.D. type. To exit
preservation mode and pass to main regulation mode, just press the [MELT] key for 1
second.
LED L2 is on, LED L1 is on when the temperature is within the [P8-P6, P8+P6] range,
flashing when the temperature is out of this range for a time equal to P7.
4.4. Main regulation
It is the P.I.D. type. When passing to main regulation, LED L2 switches off, LED L1 is on
when the temperature is within the [SP-P6, SP+P6] range, flashing when the temperature
remains outside this range for a time period equal to P7.
Main regulation occurs when:
• Pass from the STOP status to the START status with P5 = 0 and preservation is not
selected by pressing the [MELT] key for 1 second.
• Pass from the STOP status to the START status with P5 = 1 and preservation is not
selected by pressing the [MELT] key for 1 second and the temperature reaches the P8
threshold.
• In pre-heat or preservation mode, press the [MELT] key