Оценок - 5, средний балл: 4.6
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Фрагмент инструкции
The controller is mounted in a NEMA 4X enclosure and suitable for indoor or outdoor applications within temperatures of 14°F (-10°C) to 122°F (50°C). The controller should never be mounted in direct sunlight or high-temperature locations as this will cause shortened capacitor life and unnecessary tripping of the overload protector. The controller enclosure is designed for vertical upright mounting only. Mounting in other positions will affect its operation. The controller must be electrically wired to the motor using minimum 8 AWG for 5 horsepower motors and 10 AWG for 3 horsepower motors. Figure 3.5 Two Sources of Power to the Single-Phase Controller The controller must be supplied with two sources of power. The control circuit (motor starter coil) must be electrically wired with 110 VAC-50 Hz or 120 VAC60 Hz voltage. The power circuit must be electrically wired with single-phase to match the motor label. 10 3.6.2 Three-Phase Motors - IMPORTANT! BEFORE STARTING THREE-PHASE MOTORS STEPS 1. Prime pump before applying power to avoid damage to the pump and motor. 2. Check the direction of rotation. Three-phase motors can run in either direction, depending on how they are connected to the power supply. When the three cable leads are first connected to the power supply, there is a 50% chance that the motor will run in the proper direction. To make sure the motor running in the proper direction, carefully follow the next procedure: Figure 3.6 Changing Motor Rotation STEPS A. Start the pump and note the pressure and flow rate developed at the pump discharge. B. Stop the pump and interchange any of the two leads (Figure 3.6, Changing Motor Rotation). C. Start the pump again and re-check the flow rate and pressure. D. Compare the results observed. The wire connection that yielded the highest pressure and flow rate is the proper connection. Interchange the two leads again only if necessary. 11 3.6.3 Three-Phase Power Imbalance Current imbalance should not exceed 5% of the average three-phase current. The current imbalance can be calculated as follows: STEPS 1. Measure the current through each of the three legs. 2. Determine the average of the three currents. 3. Determine the difference between the current in each leg and the average of all three legs. 4. Take the difference with the largest value, and divide it by the average current. Multiply by 100 to obtain the current imbalance percentage. 5. If the current imbalance is greater than 5%, “roll” the leads and re-test (Figure 3.7, “Rolling” the Leads to Balance Current Draw). If “rolling” the leads does not correct the problem, the source of the imbalance must be located and corrected. For more information on current imbalance, refer to the motor operation manual. Figure 3.7 “Rolling” the Leads to Balance Current Draw 3.6.4 Wire Sizing For correct power lead sizing from the power source to controls and motor, refer to the motor installation manual or local electrical codes. 12 3.7 Electrical Grounding WARNING: ELECTRICALLY GROUND THIS UNIT PRIOR TO START-UP. Failure to do so may result in serious injury or death! Verify there is electrical continuity between the motor module and the junction box using a volt-ohm meter (Figure 2.1, Pump and Motor Labels). The junction box must be grounded to an earth ground following local electrical codes. Grounding lugs are provided within the junction box for this purpose. Check the continuity of your ground connection to the motor module using a volt-ohm meter. The motor module flange may also be directly connected to an earth ground. 3.8 Motor Protection -IMPORTANT! Warranty on the flow-cooled motor is void unless proper quick-trip ambient compensated protection is used on all three motor lines. Subtrol may be used on pumps with Franklin Motors. Refer to the motor installation manual. 13 4.0 PUMP OPERATION Review Section 2.0 (Tonkaflo Specifications) and Section 3.0 (Pump Installation) before operating your pump. 4.1 Priming Prime the pump as noted in Section 3.5 (Pump Priming). 4.2 Operation Operate the pump within its specified flow range. Failure to do so may damage the motor or liquid end. Refer to the Performance Specifications (Section 2.2) or the performance curve supplied with your pump. CAUTION: Do not run pump dry or without sufficient heads. The pump shall not be operated with an inlet pressure less than 20 psi (1.4 bar). Do not deadhead pump. The pump shall not be operated below the minimum or above the maximum capacity specified for your particular model (Table 2.1, Pump Performance Summary). Do not exceed 90°F (32°C) operating fluid temperature. The pump may be flushed with sanitizing water provided no power is supplied to the motor. 4.3 Restarts -IMPORTANT! A maximum of 100 starts per day is recommended Motors should be allowed to run one minute to dissipate heat build-up from starting current 14 5.0 GENERAL TROUBLESHOOTING This troubleshooting guide can assist you in identifying common operating problems you may ...
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