Carbolite 3216P1/P5 - Manual (Page 13)

Programming
13 MC18-GB – v1.04
Time Remaining
Press scroll

until the display shows
T.REMN <TIME REMAINING>. This shows the dwell
time remaining for the current segment. There is no value for “Ramp Time Remaining”
therefore when the program is ramping the dwell time set will be shown and will only begin
to count down when the ramp has finished.
Program Review
Further presses of scroll

will reveal the settings of the current program running. These
parameters are locked, while the program is running.
Program Hold with Holdback
If a holdback value has been set (see Programming section 4.7) and the program goes into
a hold state, the red “HLD” indicator will light, until the “PV” catches up.
If
while in this condition the program itself is put into “Hold” by pressing the Up 
, Down

together, the “HLD” indicator will turn off and the “Run” indicator will flash, indicating the
program is on hold. When the program is started again by pressing the up

, down

together, the “Run “ indicator will stop flashing and show continually and the “HLD” indicator
will light, if the “PV” has not caught up with the program.
Power Failure
If there is a power failure while the program is running and the power is subsequently
restored, the scrolling text will read <
POWER FAIL - PROGRAM RESET>.
To acknowledge this message and to reset the program Press “ACK” function
Alarms
Alarms are used to alert the operator when a pre-set level has been exceeded or a function
error has occurred such as a sensor break. They are indicated by a scrolling message on
the display and a flashing red ALM (Alarm) indicator. The alarm may also switch an output
–
usually a relay to allow external devices to be operated when an alarm occurs. Alarms only
operate if they have been configured and are dependant on customer requirements.
How to Acknowledge an alarm will depend on the type of latching which has been
configured. A non-latched alarm will reset itself when the alarm condition is removed. A
latched alarm requires acknowledgement with the “ACK” Function (Section 2.2) before it is
reset.
If an alarm has been activated the red “ALM” indicator will light and the scrolling text will
indicate the type of alarm.
To Acknowledge an alarm and cancel the “ALM” indicator, press ACK function.
Note:
The alarm indicator may seem to be permanently on when viewed from above. When an
alarm is active the indicator should only be flashing, to confirm this, the controller must be
viewed directly from the front.