The grey
side of the
ECL Card
Ex
tended ser
vic
e
The grey
side of the
ECL Card
Ex
tended ser
vic
e
32r
Service parameter(s) 159
Service parameter(s) 184-187
32s
159 Time interval Δt
ALARM
before activation
of alarm function
Circuit
Setting range
Factory setting
III
1 ... 99 min.
10 min.
If an alarm condition from either line 157 or 158 is present for a
longer time than the time interval Δt
ALARM
, the alarm function is
activated.
1 ... 99:
Time interval Δt
ALARM
.
If you choose OFF in line 157, the alarm function in lines 158 and
159 is not activated.
The alarm signal can only be sent via the module ECA 86 by means
of relay R4.
Alarm
Temp.
Actual flow
temp.
Line 158
Desired flow
temp.
Line 157
Δt
ALARM
Line 159
Δt
ALARM
Line 159
Time
184 Proportional band, Xp
Circuit
Setting range
Factory setting
II
1 ... 250 K
200 K
Set the proportional band. A higher value will result in a stable
but slow control of the flow temperature.
1 ... 250:
Set the proportional band.
185 Integration time constant, Tn
Circuit
Setting range
Factory setting
II
5 ... 999 sec.
55 sec.
Set a high integration time constant to obtain a slow but stable
reaction to deviations.
A small integration constant will make the controller react fast
but with less stability.
5 ... 999:
Set the integration time constant.
187 Neutral zone, Nz
Circuit
Setting range
Factory setting
II
0 ... 9 K
3 K
Set the neutral zone to a high value if you can accept a high
variation in flow temperature. When the actual flow temperature
is within the neutral zone, the controller does not activate the
motorized valve.
0 ... 9:
Set the neutral zone.
The neutral zone is symmetrical around the desired flow
temperature value, i.e. half the value is above and half the value is
below this temperature.
