
en
55
Installation
Indications,
functions and options
Messages
Commissioning
Operation and function
RIS / RIS1 / RIS2 / RIS3
Rise
Adjustment range: 1 … 20 K [2 … 40 °Ra]
Factory setting: 2 K [4 °Ra]
Note
For pump speed control, the operating mode of the corresponding relay
must be set to Auto (adjustment channel MAN1 / MAN2).
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
the minimum pump speed value.
If the temperature difference reaches the adjusted set value, the pump speed in-
creases by one step (10 %). The response of the controller can be adapted via the
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.
If the temperature difference decreases by the adjustable rise value, pump speed
will be decreased by one step.
Note
The set temperature difference must be at least 0.5 K [1 °Ra] higher than
the switch-on temperature difference.
PUM1 / PUM2
Pump control type
Selection: OnOF, PULS, PSOL, PHEA
Factory setting: PSOL
With this parameter, the pump control type can be adjusted. The following types
can be selected:
Adjustment for standard pump without speed control
• OnOF (pump on / pump off)
Adjustment for standard pump with speed control
• PULS (burst control via semiconductor relay)
Adjustment for high-efficiency pump (HE pump)
• PSOL (PWM profile for a HE solar pump)
• PHEA (PWM profile for a HE heating pump)
Minimum speed
nMN, n1MN, n2MN
Minimum speed
Adjustment range: (10) 30 … 100 %
Factory setting: 30 %
nMN, n1MN, if ODB is activated: 50 %
In the adjustment channel nMN, n1MN, n2NM a relative minimum speed for
pumps connected can be allocated to the outputs R1 and R2.
Note
The pump speed must be set to 100 % when auxiliary relays or valves are
connected.
nMX, n1MX, n2MX
Maximum speed
Adjustment range: (10) 30 … 100 %
Factory setting: 100 %
In the adjustment channel nMX, n1MX, n2MX a relative maximum speed for
pumps connected can be allocated to the outputs R1 and R2.
Note
The pump speed must be set to 100 % when auxiliary relays or valves are
connected.