Resol BASIC controller Manual For The Specialised Craftsman page 22

Adjustment level
2
SYS 2 SYS
Basic system
PUSH Adjustment range: 1 ... 3
Factory setting: 1
BACK
PUSH
3
LOAD 3
DTO
Switch-on temperature diff.
PUSH
Adjustment range:
1.0 ... 50.0 K
in steps of 0.5 K
Factory setting: 6.0 K
DTF
Switch-off temperature diff.
Adjustment range:
0.5 ... 49.5 K
in steps of 0.5 K
Factory setting: 4.0 K
DTS
Set temperature difference
Adjustment range:
1.5 ... 50.0 K
in steps of 0.5 K
Factory setting: 10.0 K
4
22
2 System
Selecting the system
Each system has pre-programmed options and adjustments which can be activated
or changed respectively if necessary. Select the system first (see page 10).
3
T control
The controller works as a standard differential controller. If the temperature reach-
SMAX
es or exceeds the switch-on temperature difference, the pump switches on. When
Maximum store tempera-
ture the temperature difference reaches or falls below the adjusted switch-off tempera-
Adjustment range: 4 ... 95 °C
ture difference, the respective relay switches off.
in steps of 1 °C
Note
Factory setting: 85 °C
The switch-on temperature difference must be 0.5 K higher than the
switch-off temperature difference. The set temperature difference must be
SMAXS
at least 0.5 K higher than the switch-on temperature difference.
Sensor store maximum
temp.
Speed control
Adjustment range: S2, S3
Factory setting: S2
If the temperature difference reaches or exceeds the switch-on temperature differ-
ence, the pump switches on at 100% speed for 10 s. Then, the speed is reduced to
HYST
the minimum pump speed value.
Adjustment range: 0.1 ... 10°
If the temperature difference reaches the adjusted nominal value, the pump speed
in steps of 0.1K
increases by one step (10 %). The response of the controller can be adapted via the
Factory setting 2K
parameter Rise. Each time the difference increases by the adjustable rise value, the
pump speed increases by 10 % until the maximum pump speed of 100% is reached.
BACK
If the temperature difference decreases by the adjustable rise value, pump speed
will be decreased by one step.
PUSH
Note
To enable speed control, the corresponding relay has to be set to AUTO,
MIN, MAX or ADAP (adjustment channel MAN) and relay control to
PULS, PSOL, PHEA or 0-10 V (adjustment channel REL).