Hot Runners Control; Fault Action Power; Power Alarm - gefran GFX4-IR Configuration And Programming Manual

With the following parameters, you can perform a specific control for the hot runners (hot.runners).
The main functions are:

FAULT ACTION POWER

You can decide what power to supply in case of broken probe.
FAP is the reference power for parameter FAP.
Average power is the average power calculated in the last 300 sec.
The alarm reset and reference power update take place only at switch-on or after a setpoint change.
The alarm is not activated if the control (Ctr) is ON/OFF type, during Selftuning and in Manual.
265
xot
228
fa. p
Read state
26
STATE OF HB ALARM
OR POWER_FAULT
bit
State of power alarm
80
(hot runners)

POWER ALARM

The alarm signals any power changes (OuP) after the process variable (PV) has stabilized on the setpoint (SP). The
time beyond which the process variable is considered stable is 300 sec (always on with hot runners).
The reference power update take place only at switch-on or after a setpoint change.
If the process variable leaves the stabilization band after the first stabilization, this does not influence the alarm.
In case of SBR:
- if the PV has not yet stabilized, either the average power over the last 5 minutes or FAP power is supplied (depending on
the setting of the HOT parameter).
- if the PV has stabilized the average power over the last 5 minutes is supplied.
Function:
If necessary, assign an output (rL.2...6) for the power alarm.
Set the band (b.ST) within which the process variable is considered stable after 300 sec. have elapsed.
Set the band (b.PF) outside which the alarm is activated after time PF.t has elapsed.
The reference power is the active power after 300 sec. have elapsed.
The alarm reset and reference power update take place only at switch-on or after a setpoint change.
56

HOT RUNNERS CONTROL

R/W Select hot runner functions
Fault action power (supplied in
R/W
conditions of broken probe)
OFF = Alarm off
R
ON = Alarm on
OFF = Alarm off
R
ON = Alarm on
Table of hot runner functions
Fault action
Enable power if PV is
hot runners not stabilized
0 FA.P
1 X Average power
2 FA.P
3 X FA.P
4 FA.P
5 X Average power
6 FA.P
7 X FA.P
+8 enable GS.2
FA.P – see alarm for probe in short or connection error (SBR-ERR)
-100.0 ..100.0 %
80415F_MSW_GFX4-IR_05-2019_ENG
0
Enable
preheating softstart
X
X
X
X
0.0