AP CG-05, User Manual

Page: 13 / 31

13
June 2012
Gas Controller
AUTOMATIKPRODUKTER
4.5.3 Latching Mode
Definition of the latching function:
The combination of latching function and automatic reset of the horn function cancels the effect of each other
and therefore is not admitted.
Symbol Description Setting Status Function
R 01 Relay No.
Selection Relay
No
Latching
Mode
No
No
Yes = No latching function
= Latching function
Acknowledging a latching relay in the menu “Status Relay” is only possible if the gas concentration is again
lower than the alarm threshold including hysteresis. In this case the status latching occurs in the display.
The respective switch-off delay is without effect when the latching mode is activated.
Example: Alarm relay R2 with latching mode
Alarm 2
Display in the Menu
Status Relay
Relay 2
Reset in the Menu
Status Relay
or Digital Input
On
Off
On
Off
On
Off
R2
Off R2
On R2
On R2
On R2
Latching
R2
Off
Gas concentration higher lower than threshold
4.5.4 Horn Function
The horn function is only activated if at least one of the two parameters (time or digital input) is set. This
function has priority to the latching mode function.
The following possibilities to reset are available for the alarm relay as horn relay:
•
By pressing any of the 6 pushbuttons. (Only possible in the starting menu).
•
Automatic reset at the end of the preset time (active, if value >0).
•
By an external pushbutton. (Assignment of the appropriate digital input DI: 1-4).
After acknowledgment the horn remains permanently reset until all assigned alarms for this relay function are
inactive again. Not till then it is triggered anew in case of an alarm.
Special function Recurrence
After acknowledgment of the relay (by pushbutton or externally), the time starts. When this time has run out
and the alarm is still acting, the relay is set again.
Symbol Description
Setting
Status
Function
R 04 Relay No.
Selection relay
Recurrence Reset Mode 0
0 = Reset of the relay after time having run out, via DI (external) or
by pushbuttons
1 = After reset of the relay, time starts. At the end of the set time,
the relay is activated again (recurrence function).
Time 120
Enter time for function automatic reset or recurrence function in sec.
0 = no reset function
DI 0 Assignment, which digital input resets the relay.