Instruction manual

Pg. 29
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©INCOE® CORPORATION 8/2010
2
M SERIES
INSTRUCTION MANUAL
OPERATION
2.29 POWER PERCENTAGE MONITORING
This function allows to obtain an alarm signal when
the percentage of power sent to the heaters in the
mold is considered as out of the normal values.
You have to give the system a reference value on each
zone. This value is a percentage of power in reference
to the average percentage of power on the zone.
The average value is refreshed every second so that an
alarm could be declared every second.
A too large variation of the percentage of power can
show an abnormal situation on the controlled zone.
Here is an example about how this monitoring
system works:
The Average power (PCA) is calculated in real-time
and refreshed every second on each zone.
Example: PCA = 45,3% on zone 1. (this value given by
the CPU changes every second)
The user defines a Reference value (PCR) on this zone.
Example: PCR = 46% on zone 1. (this value is fixed)
The user defines a Monitoring tolerance (PCS) on
this zone.
Example: PCS = 2% on zone 1 (this value is fixed)
Each time the Average power (PCA) goes higher or
lower than the Reference value (PCR) + or – the
Monitoring tolerance (PCS), an alarm is declared:
To reset the appearing alarm, here are the possibilities:
- If the Average power (PCA) decreases by itself and
comes back into the correct values (between PCR-
PCS and PCR+PCS). The alarm disappears by itself.
- If you set the Monitoring tolerance to 0 (PCS = 0).
- If you switch off the system, you reset the alarms.
Be careful the average value is not memorized (PCA).
- If you change the setpoint value so that the system
is not in a normal control mode (heat up or not).
Note: This system can be switch off by setting the
monitoring tolerance to 0 (PCS = 0).
By selecting the RESU menu you can display
several parameters from this function.
Use the and function keys to select the
right parameter.
You can for example display the Average power
(PCA) calculated in real-time:

Average power (PCA)
calculated in real-time