gefran 600 Bedienungsanleitung Seite 24

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l5. 2
xs. 2
of. 2
lo. l
xi. l
Out
a1. r
a2. r
a3. r
a1. t
a2. t
a3. t
xb. f
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Minimum limit auxiliary
0.0 ... 999.9
input scale
Maximum limit auxiliary
0.0 ... 999.9
input scale
Offset correction -99.9 ... 99.9
of aux input scale points
Lower limit for setting SP
Lo.S ... Hi.S
and absolute alarms
Upper limit for setting SP
Lo.S ... Hi.S
and absolute alarms
• Out
Output settings
Select
reference
signal for
alarm 1
AL.1.r, AL.2.r, AL.3.r
Select
AL.x.r Variable to be compared
reference
0 PV (Process variable)
signal for
1 SSP (active setpoint)
alarm 2
2 PV (process variable)
Select
reference
signal for
alarm 3
AL.1.t, AL.2.t, AL.3.t
AL.x.t Direct (high limit) Absolute or
Alarm
Inverse (low limit) relative to
type 1
active setpoint
0 direct absolute
1 inverse absolute
Alarm
2 direct relative
type 2
3 inverse relative
4 direct absolute
5 inverse absolute
6 direct relative
Alarm
7 inverse relative
type 3
+8 to disable on power up until first interception
+16 to latch alarm
+ 32 Hys becomes delay time when alarm trips (0...999 sec.) (excluding symmetrical absolute)
+ 64 Hys becomes delay time when alarm trips (0...999 min.) (excluding symmetrical absolute)
Val. Function description
HB alarm 0 Relay, logic output: alarm active
function
on load current level lower
than setpoint during the
ON time of the control output
1 Relay, logic output: alarm active
on load current level higher
than setpoint during the
OFF time of the control output
2 Alarm active if one of functions 0 and 1
is true (OR logic between 0 and 1) (*)
3 Continuous heat alarm (**)
7 Continuous cool alarm (**)
+ 0 assigned to Out1 (only for Hb_F= 0, 1, 2)
+ 4 assigned to Out2 (only for Hb_F= 0, 1, 2)
+ 12 assigned to Out4 (only for Hb_F= 0, 1, 2)
+16 inverse HB alarm
Notes:
- The HB alarm is disabled if assigned to a rapid output (except codes 3 and 7)
- When the CT input is present, faceplate LED OUT3 always indicates the state of the HB alarm.
(*) minimum setting is fixed at 12% of amperometric full scale
(**) As type 0 without reference to cycle time
24
Reference setpoint
AL
AL (only absolute)
AL (only relative and
referred to SP1 with
multiset function)]
Normal
Symmetrical
(window)
normal
normal
normal
normal
symmetrical
symmetrical
symmetrical
symmetrical