Table of Contents
Advertisement
6.8 Process alarms
The alarm function switches off when the set
value is reached, this can refer to PV1, PV2
or PV1-PV2. The alarm setting is indepen-
dent of the setpoint, 8 alarm functions are
available for setting, PV1.H, PV1.L, PV2.H,
PV2.L, P1.2.H, P1.2.L, D1.2.H, D1.2.L.
PV1.H and PV1.L refer to PV1.
PV2.H and PV2.L refer to PV2.
P1.2.H and P1.2.L refer to PV1 and PV2,
both values are monitored.
D1.2.H and D1.2.L refer to PV1 – PV2,
the difference is monitored.
The switching point depends on the value
A1SP and the hysteresis A1HY for Alarm1,
resp. A2SP and A2HY for Alarm2. Hysteresis
prevents frequent switching when the process fluctuates rapidly.
Normally you can A1HY / A2HY in the factory setting 0,1 remain.
A1DV and/or A2DV are hidden when Alarm 1 and /or Alarm 2 is activated.
Normal alarm: A1MD = NORM
With the setting NORM, the alarm is switched depending on the alarm value A1SP
and the hysteresis A1HY.
Example:
Normal alarm
promesstec GmbH I Niedersachsenstraße 4 I D- 48465 Schüttorf I Tel.:+49 (0)5923/ 90 229 0 I Fax:+49 (0)5923/ 90 229 29
8 Alarmfunktionen einstellbar:
PV1.H, PV1.L, PV2.H, PV2.L,
P1.2.H, P1.2.L, D1.2.H, D1.2.L
Alarm 1
Einstellung: A1FN, A1MD
Parameter: A1SP, A1HY
Alarm 2
Einstellung: OUT2, A2FN, A2MD
Parameter: A2SP, A2HY
Trigger level = A1SP_1/2 A1HY
Trigger level = A2SP_1/2 A2HY
Rücksetzen speichernder
Alarm
1. Netzspannung AUS
2. Über den Ereigniseingang,
EIFN- Parameter beachten!
E-Mail: office@promesstec.com I Internet: www.promesstec.com
51
Advertisement
Table of Contents
