User manual GRACO VARIABLE FREQUENCY DRIVE 311596F

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Detailed instructions for use are in the User's Guide.

[. . . ] Instructions Variable Frequency Drive Motor drive control for Graco E-Flo® Electric Circulation Pumps. Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. 311596F See page 3 for approvals information. Part No. 15J753, 200-240 Vac UNIDRIVE SP Digital AC Drive 208/230VAC, 5HP, SP2201 Part No. 15J754, 380-480 Vac UNIDRIVE SP Digital AC Drive 460VAC, 5HP, SP1405 UNIDRIVE Information Unidrives are manufactured by Control Techniques Corporation. [. . . ] Drives are shipped out from Graco with all calibrations set to their defaults. Use Pr 20. 16 to reload default. E-Flo Features 311596F ***Load Defaults: Yes indicates that a default value will be loaded if Load System Defaults is triggered (Pr 20. 16 = 1234). Running the Pump Operational Envelope Limit Explosion-proof electric motors have constant torque and variable torque limits. E-Flo system is a constant torque application, and therefore the motor's constant torque limits must not be violated. The system is available with two motors: the UL/CSA explosion-proof motor and the ATEX explosion-proof motor. To stay within the allowed torque, flow and pressure limits are installed. Running the Pump CAUTION The drive has been programmed by Graco. Do not attempt to recalibrate the Sequencer or Motor Control as it can interfere with the Graco Program. Flow Limit Speed command is limited to 5:1 operation for ATEX motors and 10:1 operation for UL/CSA motors. See TABLE 2 for flow limits (Pr 20. 05). Secure Disable According to Control Techniques Unidrive SP User Guide, "Secure Disable (SD) function provides a means for preventing the drive from generating torque in the motor, with very high level of integrity". Secure Disable/Drive enable hardware input (VFD terminal #31) is designed for positive logic input only. It should be connected to internal 24VDC power supply (VFD terminal #22). The SD is a fail-safe function; it enables the drive when 24VDC is connected to SD hardware input and disables (inhibits) the drive when SD hardware input is open. Pr 6. 29 and Pr 8. 09 can be used to monitor state of the Hardware enable input. Local I/O Box (see page 5) provides a normally closed Secure Disable switch, which has a red mushroom-type button (press to latch, pull to unlock). When latched, switch opens SD circuit, therefore disabling (inhibiting) the drive. When unlocked, switch closes SD circuit, enabling the drive. Pressure Limits Operating pressure limits are unique to the pump lower sizes. If the system pressure is greater than the maximum allowed for a given pump lower size for longer than 30 seconds, system Trip #44 will shut the system down. Table 3: System Pressure Limits Graco Motor (Pr 20. 37 = 0, 1, 3, or 4) psi 250 330 460 425 (if set to 3 or 4); 500 (if set to 0 or 1) bar 17. 2 22. 8 31. 7 29. 3 (if set to 3 or 4); 34. 5 (if set to 0 or 1) Non-Graco Motor (Pr 20. 37 = 2) psi 250 330 460 500 bar 17. 2 22. 8 31. 7 34. 5 Lower Size (cc) 2000 1500 1000 750 311596F 21 Running the Pump Start/Stop Command Local Control Mode When Local mode is selected, Run command can only be initiated by means of Run/Stop hardware switch ­ set Run/Stop switch to Run position. Stop/Reset button: Press Stop/Reset (red) button on a VFD Keypad display. Note that if Stop command was initiated by pressing Stop/Reset button, one of the following two actions will restart the pump: a. Cycle the Run/Stop switch ­ Set it to Stop position and then to `Run' position. To initiate Run command via Keypad, navigate to Pr 20. 25 and set its value to 2. Red Stop/Reset button on a keypad: Press Stop/Reset (red) button on a VFD Keypad display. If Stop command was initiated by pressing Stop/Reset button, one of the following two actions will restart the pump: a. [. . . ] 29: System Wiring Schematic, Hazardous Location 311596F 43 Parts Parts 1 3 ti9002a Ref. Description 1 2 3 120361 CONTROL, variable frequency, 200-240 Vac 120362 CONTROL, variable frequency, 380-480 Vac 120363 RESISTOR, braking; 37. 5 ohms; 100W; for 200-240 Vac VFD; not shown 120364 RESISTOR, braking; 75 ohms; 50W; for 380-480 Vac VFD; not shown 120367 MODULE, VFD applications Qty 1 1 1 1 1 44 311596F Mounting Hole Diagrams Mounting Hole Diagrams 0. 256 in. 460V VFD Mounting Holes 311596F 45 Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. [. . . ]

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