Franklin Electric SUBDRIVE CONNECT 50 Manuel Du Propriétaire page 33

Primary Setpoint: When using a pressure transducer, this parameter sets the target pressure the drive will
maintain.
• 5 psi to Transducer Range –5
• Default = 50 psi
Drawdown: The drawdown function allows the drive to regulate to the Pressure Setpoint and remain off
until pressure drops to the Cut In Setpoint.
• Disabled/Enabled
Cut In Setpoint: This parameter sets the low pressure limit before the drive restarts when using the Draw-
down function.
• 5 psi to Primary Setpoint –1
• Default = 40 psi
Proportional Gain: This setting determines transducer input sensitivity. A greater value provides more sen-
sitivity. However, if set too high, the system may create an output frequency oscillation.
Integration Time: This setting determines response time to transducer input. A greater value provides
slower response and may cause oscillation of output frequency.
Surface Application System Response Settings
The FE Connect app provides the option to refine system response beyond
the Slow, Medium, and Fast choices provided by the DIP switches.
1. If pressure regulation performance is not acceptable using one of the
pre-configured settings, use the FE Connect app to configure a Custom
system response.
2. Test the Proportional Gain value by opening the shut-off valve after the
pressure sensor and monitor the initial pressure.
• If the initial pressure is +/-15% of the setpoint pressure, the P value
is good.
• If the initial pressure is less than 15% of the setpoint pressure,
increase the P value.
• If the initial pressure is more than 15% of the setpoint pressure, decrease the P value.
3. Test the Integration Time (I) value by opening the shut-off valve after the pressure sensor and monitor-
ing the stabilizing pressure.
• If the pressure stabilizes within 10 seconds, the I value is good.
• If the pressure stabilizes after 10 seconds, reduce the I value. If the minimum I value is reached,
reduce the frequency range.
4. Test the Ramp Rate (R) value by opening the shut-off valve after the pressure sensor, wait for the sys-
tem to stabilize, and then close the shut-off valve to monitor the shut-off time.
• If the shut-off time is less than 60 seconds, the R value is good.
• If the shut-off time is more than 60 seconds, increase the R value. If the maximum R value is
reached, increase the minimum frequency.
5. Make sure the system can regulate on minimum flow by closing all faucets except the one with the least
flow and open the shut-off valve after the pressure sensor. Verify that the system reaches initial pres-
sure within 10psi, stabilizes within 10 seconds, and shuts off within 60 seconds.
COMMUNICATIONS
FE Connect Mobile Application
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