VBus
/PWM interface adapter
®
2. Connection
DIP switches for addressing the
signal output (see ch. 4.)
Jumper slot for the inversion of
the PWM signal (see ch. 3.)
8.
(1)
(2)
(3)
(4) (5) (6)
VBus
terminals
®
Signal output
3. Adjusting the signal type
Jumper position for PWM signal
4. Inverting the PWM signal
Jumper slot for
the inversion of
the PWM signal
inverted
100
70
30
30%
Connection socket for
the mains adapter
Jumper slot for setting the
signal type (PWM or 0-10 V;
see ch. 6)
Jumper position for 0-10 V signal
DIP switches for
addressing the
signal output
normal
100%
PWM %
ATTENTION! Short circuit!
A short circuit can lead to damage to
electronic components!
Î Finish terminal connection and clo-
se the housing before establishing
the mains connection!
The interface adapter comes with a mains adapter for the
power supply.
The pump is to be connected to the signal output at the
terminals 5 and 6 (see table below).
The VBus
/PWM interface adapter comes with a pre-con-
®
nected VBus
®
cable. The second pair of VBus
be used for the connection of another VBus
VBus
connection at the terminals:
®
VBus (1 + 2; 3 + 4)
= VBus
either polarity
Pump connection at the terminals:
=
Signal output (5)
PWM or 0-10 V
=
GND (6)
The jumper to the right of the terminals is used for deter-
mining whether a PWM signal or 0-10 V signal is to be used.
The jumper poles are indicated with A, B and C.
Jumper position A+B = PWM signal (factory setting)
Jumper position B+C = 0-10 V-Signal
Changing the signal type:
Î Pull the jumper out of the slot and insert it according
to the desired signal type.
By means of the two-pole jumper slot to the left of the
DIP switches, the PWM signal generated can be inverted.
Jumper not connected:
Jumper connected (factory setting):
Changing the factory setting:
Î To disconnect the jumper, take it off its initial position
and relocate it onto only one of the pins.
The 0-10 V signal is not affected by the signal inversion.
The minimum pump speed is 30 % (see fi gure to the left).
Note
Whenever the pump is switched on, it will be
run at 100 % speed for a few seconds before the
fl exible pump speed control is effected.
®
terminals can
device.
®
input / output,
®
PWM 100-0
PWM 0-100
13
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