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Installation Commissioning Settings AccessoriesTroubleshooting
Display
Signal type R1 / R2 / PWM
Selection: Std., PWM
Factory setting: Std.
The adjustment channels Signal type can be used for selecting the signal type of
the relays for speed control.
• Std. = Adjustment for standard pumps
• PWM = PWM signal for high-effi ciency pumps
When the Signal type is set to PWM, the channel Profi le appears.
Profi le
Selection: Solar, Heating
Factory setting: Solar
In the Profi le channel, PWM profi les for solar or heating pumps can be selected.
• Solar = Solar pump
• Heating = Heating pump
Connecting a HE pump with PWM speed control
S1
PWM
R1
S3
S2
222
1 (1) A 240 V~
1 (1) A 240 V~
R1
R2
Made in Germany
FK
Te mp. Sensor Pt1000
S2S1 S3 VBus
11 12 13
T2A
100 ... 240 V~
50-60 Hz
NNR2
LN
R1
2019
18
171615
S4
—
—
PWM1/2
If the signal type PWM has been selected, speed control will not take place via the
relay. A separate connection for the PWM signal will have to be made (see fi gure).
Note:
HE pumps that do not require a PWM speed signal are to be connected
to the relay only.
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