SICK DOSIC Series, Operating Instructions Manual, Page: 26 / 58

OPERATING INSTRUCTIONS | DOSIC
®
8020955 /11HD/ 2018-12-12 | SICK AG
Subject to change without notice
26
7 COMMISSIONING
Q2SP can be used to define the maximum flow, and Q2RP can be used to define the
minimum flow.
Example:
FrqMax = 10.000 (Hz)
FrqMin = 0 (Hz)
Q2SP = 36.00 (L/min)
Q2RP = 0 (L/min)
With these settings, the output frequency varies between 0 and 10.000 Hz when the
flow is changed from 0 to 36 L/min. If the flow is 18 L/min, for example, the output
frequency is 5.000 Hz.
The frequency output can be simulated under Q2Sim.
Depending on the parameterization of the frequency output, the output frequency can
be higher than 10 kHz or lower than 0 Hz. In case the frequency is too high, the sensor
will show the warning [i]HiFrq on the display (and “Q2 frequency too high” over the
active notifications of IO-Link).
In case the frequency is too low, the sensor will show the warning [i]LoFrq on the display
(and “Q2 frequency too low” over the active notifications of IO-Link).
Example:
Configuration: FrqMax = 10kHz, FrqMin = 0Hz, Q2SP = 10.0L/min, Q2RP = 0.0L/min
Measured flowrate = 20 L/min --> Output frequency clipped to 10 kHz à Warning [i]
HiFrq
Measured flowrate = -20 L/min --> Output frequency clipped to 0 kHz à Warning [i]LoFrq
7.4 Configuration of analog outputs
Configuration
1. Select the QaType or QbType (only 8-pin variant) menu using the arrow pushbut-
tons and confirm using Set.
The available values are Off or 4-20 mA.
7.4.1 Current output 4-20 mA
The analog current outputs Qa and Qb can be configured as flow or/and temperature.
However, Qb can only be configured in the 8-pin variant.
Configuration (based on Qa as an example)
1. Set the parameter in the QaType menu to 4-20 mA.
2.
Select flow or temperature (under QaProc).
3. Set the upper limit value (20 mA or 4 mA, depending on the setting under QaPol).
• In the QaHigh menu, set the value for flow range (e.g., 100.0) or temperature
(e.g., 60 °C).
4. Set the lower limit value (4 mA or 20 mA, depending on the setting under QaPol).
• In the QaLow menu, set the value for flow range (e.g., 50.0) or temperature
(e.g., 40 °C).
5. Invert the signal.
The analog signal can be inverted in the QaPol menu.
Set the parameter to “Inverted” in the QaPol menu.