17 Technical Information
Connection J1 Remote I/O Interconnections
220/310 Turbo-V 750/850-AG Rack Controller User Manual / 87-901-023-01
(B)
The contact logic is configured depending on Activation Type
parameter status. If Activation Type is “high level active” the contact
is configured as “normally open” (it will close the circuit when
activated), if Activation Type is “low level active” the contact is
configured as or “normally closed” (it will open the circuit when
activated). Then the default factory setting for this contact output is
normally open.
Contact ratings:
Rated current:
1.25A
Max. operating voltage:
120 Vac / 120 Vdc
Max. switching power:
120 VA / 50 W
Min. switching load:
10 µA, 10 mVdc
SPEED SETTING
: PWM input signal (opt isolated) to set the pump
speed. The PWM signal characteristics must be the following:
frequency: 100 Hz +/-20 %
amplitude: from 5 to 24 V
duty cycle range: from 25 % to 75 % (t
off
/T) corresponding to a
rotational frequency from 350 Hz to 825 Hz linearly. With duty
cycle <25 % rotational frequency = 350 Hz, with duty cycle >75 %
rotational frequency = 825 Hz
NOTE
The duty cycle percentage is referred to the low level portion of the PWM
signal
NOTE
High Speed is the nominal rotational frequency of the pump (825 Hz). Low
Speed (350 Hz) corresponds to the rotational frequency for a stand by status.
Users can set rotational frequency between these two values.
