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0 Optional Select Switch Settings 10. To make changes to the configuration switches SW3 and SW6 (See Figure 4), make sure power supply is locked and tagged out, then remove the two screws from the plastic shield covering the User interface board. Set all DIP switches as desired per the details below. SW3 Pole 1 ON for Mechanical Leak Detectors (factory setting) OFF For Some Electronic Line Leak Detection systems. Required setting for Veeder Root PLLD SW3 Pole 2 ON for Gasoline (factory setting) OFF for Diesel product Note: Because gasoline has a different specific gravity than diesel fuel, the correct setting of Pole 2 is important to ensure that the MagVFC regulates pressure at the desired level. SW3 Pole 3 ON for Master controller (See Master Slave Control Connections for details) OFF for Stand-alone operation or Slave configuration (factory setting) SW3 Poles 4 and 5 (Pipe Compensation) See Calibration Section of this Manual for details in setting these switches (default is ON, ON) SW3 Pole 6 ON when using PMAVS4 motor OFF when using PMAVS2 motor (factory setting) Note: Incorrect setting can cause the MagVFC to give false indications of SC (short circuit) or UL (underload). Set SW3 Pole 6 properly to horsepower of pump connected. SW3 Pole 7 ON for Automatic reset of "Under Load" fault. An empty tank will cause an Under load fault. The MagVFC will automatically reset when the condition is corrected. OFF must push Reset button to clear the "Under Load" fault (factory setting) Note: Not functional in IST-VFC Compatibility Mode, leave in OFF position. SW3 Pole 8 (for multiple MagVFC controllers working together) See Alternating Circuit Control section for details (default is OFF) Note: Not functional in IST-VFC Compatibility Mode, set with SW2 Pole 5 per Table 1A. SW6 Pole 9 See Troubleshooting section for details of the Extended Run Alarm ON Will disable the Extended Run Alarm condition OFF The Extended Run Alarm is active (factory setting) Note: Not functional in IST-VFC Compatibility Mode, leave in OFF position. SW6 Pole 2 (For Master -Slave and Alternating Circuit configurations ONLY) - See Master -Slave Fault Shutdown Control section for details of this switch (default is OFF) Note: Not functional in IST-VFC Compatibility Mode, set with SW2 Pole 5 per Table 1A. SW6 Pole 3 ON for IST-VFC Compatibility Mode, unit will then ONLY communicate with rev 1.5 software IST-VFCs in Master -Slave configurations (not for use in communicating Master -Slave with other MagVFCs) OFF native MagVFC Master -Slave communication (factory setting) Note: Available in MagVFC software versions 1.18 and higher only. SW6 Pole 4 ON When the alternating circuit configuration is used this will alternate submersibles every 30 minutes when a hook signal is continuous. This option is used to assist in keeping tanks balanced at busy sites. OFF Available in MagVFC software versions 1.22 or higher only. SW6 Pole 5 (Slave turn off) ON When the MagVFC is configured for Master/ Slave operation with 2 ETPs running, when product demand decreases to the point that a single submersible can meet the needed flow, the slave will turn off in order to conserve energy. Off the slave turnoff option is not enabled and standard Master/Slave operation will be performed. The slave will turn off only when the hook signal goes low and the controllers go idle. Note: Available in MagVFC software versions 1.23 or higher only. SW6 Poles 6 - 8 These switches are not used. Leave them in the OFF position. Note: MagVFC may operate in an unpredictable manner if any of the switches, SW6 Poles 6-8, are in the ON position. 7