Graham 1703 Series Installation, Operation And Maintenance Manual

Adjustable frequency drive

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Installation, Operation and

Maintenance Manual

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Summary of Contents for Graham 1703 Series

Page 1 Installation, Operation and Maintenance Manual Adjusta Adjusta ble Fr ble Fr equenc equenc y Dr y Dr iv iv iv iv iv e e e e e y Dr Adjusta Adjusta ble Fr Adjusta ble Fr ble Fr equenc equenc equenc y Dr y Dr 1703 Ser...
Page 2 Since improvements are continually being made, the enclosed data is subject to change without notice. Any drawings are for reference only, unless certified. For additional information contact Graham Service Department. Copyright © 1998, Graham, Division of Danfoss Inc.
Page 3: Table Of Contents
T T T T T able of Contents able of Contents able of Contents able of Contents able of Contents Page Page Page Page Page General ..................... 1 Receipt of Shipment ..................1 Storage ..................... 1 Handling ..................... 1 Section 1. Section 1.
Page 4 Section 4. Section 4. External Drive Status Indicators External Drive Status Indicators Page Page Section 4. Section 4. Section 4. External Drive Status Indicators External Drive Status Indicators External Drive Status Indicators Page Page Page Power On ...................14 Ready ..................14 Run .....................14 @ ....................14 Rev....................14...
Page 5 List of Illustrations List of Illustrations List of Illustrations Typical 1703 Series ..................3 Typical Older 1703 Series, 21 Amps and Below, Customer Connections . 5 Typical 1703 Series, Customer Connections ..........6 Control Board .....................17 Control Chip Board, drawing ..............18 Control Chip Board, photo .................21...
Page 6: General
MOUNTING ment operation supersede the instructions in this manual. The 1703 Series drives are all designed to be wall mounted. If they must be floor mounted, a floor stand Although every precaution has been taken in the de- can be supplied. Assemble the base struts to the verti-...
Page 7 J1 TERMINAL 6 (-) ON THE CON- J1 TERMINAL 6 (-) ON THE CON- J1 TERMINAL 6 (-) ON THE CON- 1703 Series drives are cooled by fan(s) drawing air TROL BOARD TO VERIFY THAT TROL BOARD TO VERIFY THAT...
Page 8: Typical 1703 Series
Conduit Entry Plate Mounting Rail Lifting Holes Mounting Holes Air Vents Drive/Off/Line/Test Switch (optional) Display Meter and Panel Operator Control Panel TYPICAL 1703 SERIES...
Page 9: Wiring
SECTION 2. SECTION 2. SECTION 2. WIRING WIRING WIRING WIRING SECTION 2. SECTION 2. WIRING CAUTION REDUCING THE INPUT VOLTAGE REDUCING THE INPUT VOLTAGE REDUCING THE INPUT VOLTAGE REDUCING THE INPUT VOLTAGE REDUCING THE INPUT VOLTAGE 2.1 INPUT VOLTAGE 2.1 INPUT VOLTAGE 2.1 INPUT VOLTAGE 2.1 INPUT VOLTAGE 2.1 INPUT VOLTAGE...
Page 10 21 amps or below do not have a separate power board. The customer connections for these drives and all drives larger than 21 amps are shown on page 6. TYPICAL OLDER 1703 SERIES, MODELS 21 AMPS AND BELOW Customer Connections...
Page 11: Typical 1703 Series Customer Connections
See page 5 for older drives of 21 amps or less. 4TB4 Customer Terminal Strip Input Power Line Terminals Input from Motor Starter Terminals (optional) Drive/Off/Line/Test Switch Motor Terminals (optional) TYPICAL 1703 SERIES Customer Connections...
Page 12: Input Wiring
INPUT WIRING INPUT WIRING INPUT WIRING INPUT WIRING INPUT WIRING WARNING DO NOT DRILL, SAW, FILE OR DO NOT DRILL, SAW, FILE OR DO NOT DRILL, SAW, FILE OR DO NOT DRILL, SAW, FILE OR DO NOT DRILL, SAW, FILE OR Input wire types and sizes must be selected based PERFORM ANY OPERATION ON PERFORM ANY OPERATION ON...
Page 13: Run And Fault Contacts
2.11 2.11 2.11 2.11 2.11 RUN AND FAULT CONTACTS RUN AND FAULT CONTACTS RUN AND FAULT CONTACTS RUN AND FAULT CONTACTS RUN AND FAULT CONTACTS WARNING Two Form C contacts (one normally open and one nor- A P P L I C A T I O N S A P P L I C A T I O N S A P P L I C A T I O N S A P P L I C A T I O N S...
Page 14: Torque Specifications
Refer to “Output Drive Current” rating on the plastic cover over the control board for this value. Values are based on true RMS amps. Isolation transformer sizing is based on 460 V AC input for drives without bypass. Consult Graham for other input voltages. isolation transformaers must be designed for use with adjustable frequency drives.
Page 15: Switches
SPEED SELECT SWITCHES 3.1.2 3.1.2 SPEED SELECT SWITCHES 1703 Series drives. This panel consists of soft touch membrane switches, a 3½ digit backlit LCD display The speed select switches consist of two mem- and status indicating LCDs. On newer displays, the brane switches (LOC, REM).
Page 16: Standard Option Switches
VOLTS DANGER AMPS T H E T H E T H E T H E T H E B Y P A S S B Y P A S S B Y P A S S B Y P A S S B Y P A S S D I S C O N N E C T D I S C O N N E C T...
Page 17: Drive/Off/Line/Test Transfer Switch
OFF - The motor is disconnected from both the customer operation. If the motor starter is sup- drive and the bypass power sources. The OFF plied by Graham, the LINE ON/OFF switch lamp on the front panel is illuminated. The controls the starter.
Page 18: Transfer Switch Motor Selection
ergized. At the time the LINE contactor is acti- vated: 1. The DRIVE contactor is de-energized to isolate the motor and utility power from the output of the drive to prevent backfeeding. 2. The drive’s emergency shutdown cir- cuitry is activated. The required time delay before automatic transfer is determined by the application and the amount of inertia in each individual sys-...
Page 19: Power On
SECTION 4. SECTION 4. SECTION 4. Potential causes of this fault trip are: SECTION 4. SECTION 4. 1. Motor bound or not free to rotate. Example: Brake on, bearing problems, etc. EXTERNAL DRIVE ST EXTERNAL DRIVE ST EXTERNAL DRIVE STA A A A A TUS EXTERNAL DRIVE ST EXTERNAL DRIVE ST 2.
Page 20: Ext
connection. 1. Lack of, or defective operation of, a check 3. The motor wiring for proper voltage connec- valve in a pumping system. tion. 2. Lack of, or defective operation of, a back draft 4. That there are no power factor correction ca- damper on a fan system.
Page 21: Bus Pwr
SECTION 5. SECTION 5. SECTION 5. SECTION 5. SECTION 5. INTERNAL DRIVE ST INTERNAL DRIVE ST INTERNAL DRIVE ST INTERNAL DRIVE ST INTERNAL DRIVE STA A A A A TUS INDICA INDICA INDICAT T T T T ORS INDICA INDICA Many of the drive status indicators are displayed both internally and externally.
Page 22: Control Board
Commutation Commutation Power Conduction Adjustment Drive LED Supply LED Drive LED Potentiometers Bus Power LED Run Command LED Status and Diagnostic LEDs TYPICAL 1703 SERIES Control Board...
Page 23 Dip Switches Offset Gain Minimum Speed Maximum Speed Maximum Ext. Speed (opt) Overload Current Limit I Compensation Walking Frequency Volts/Hertz Ready (yellow) At Speed (yellow) Run (green) Temperature (green) Fault (red) Overload Indicator (red) Overcurrent Indicator (red) Overvoltage Indicator (red) Undervoltage Indicator (red) Phase Loss Indicator (red) Ground Fault Indicator (red)
Page 24: Offset And Gain
OVERLOAD OVERLOAD OVERLOAD SECTION 6. SECTION 6. Factory Calibration Factory Calibration Factory Calibration Factory Calibration Factory Calibration The 1703 Series is designed to provide motor overload INTERNAL INTERNAL INTERNAL INTERNAL INTERNAL ADJUSTMENTS ADJUSTMENTS ADJUSTMENTS ADJUSTMENTS ADJUSTMENTS protection. The overload is factory set for 105% of drive’s rated output.
Page 25: Walking Frequency
CAUTION CAUTION USE OF THE HI-TORQUE CIRCUIT USE OF THE HI-TORQUE CIRCUIT USE OF THE HI-TORQUE CIRCUIT USE OF THE HI-TORQUE CIRCUIT USE OF THE HI-TORQUE CIRCUIT EXCESSIVE CW ADJUSTMENT OF EXCESSIVE CW ADJUSTMENT OF EXCESSIVE CW ADJUSTMENT OF EXCESSIVE CW ADJUSTMENT OF EXCESSIVE CW ADJUSTMENT OF WHEN IT IS NOT REQUIRED OR WHEN IT IS NOT REQUIRED OR...
Page 26 Conduction Drive LED DIP Switches 50 Pin Connector and Cable Adjustment Potentiometers Diagnostic LEDs Run Command TYPICAL 1703 SERIES Control Chip Board...
Page 27: P1, P2, P3 And P4
The following calibration potentiometers are located (value at minimum speed); P3 the output load offset on the display board. The display board is mounted on (value at minimum load); and P4 the output load gain the inside of the door, directly behind the operator's (value at maximum load control panel.
Page 28: Internal Switches
7.1.2 7.1.2 D0, D1, D0, D1, SECTION 7. SECTION 7. SECTION 7. 7.1.2 7.1.2 7.1.2 D0, D1, D0, D1, D0, D1, and D2 D2 are used to set the de- SECTION 7. SECTION 7. celeration time of the drive: INTERNAL SWITCHES INTERNAL SWITCHES INTERNAL SWITCHES INTERNAL SWITCHES...
Page 29: Ovr
protection circuits. In the on position, ground fault trips will be automatically reset. This NOTE: NOTE: NOTE: THIS SWITCH SHOULD BE NOTE: NOTE: THIS SWITCH SHOULD BE THIS SWITCH SHOULD BE THIS SWITCH SHOULD BE THIS SWITCH SHOULD BE function is for use by factory personnel utilizing IN THE OFF POSITION UNLESS IN THE OFF POSITION UNLESS IN THE OFF POSITION UNLESS...
Page 30: Switch Sw3
OFF - Voltage input signals between delivered to the motor. Use of these switches zero and +40 V DC can be tracked (0 to and the 60 HZ switch determine the V/Hz ratio +10 V DC is typically used). to be delivered to the motor. The voltage on the motor nameplate is used to determine this set- 7.3 SWITCH SW3 7.3 SWITCH SW3...
Page 31: Standard Switch Configuration
7.4 STANDARD SWITCH 7.4 STANDARD SWITCH 7.4 STANDARD SWITCH 7.4 STANDARD SWITCH 7.4 STANDARD SWITCH CONFIGURATION CONFIGURATION CONFIGURATION CONFIGURATION CONFIGURATION Unless designated otherwise, the following switch set- tings are standard for typical application requests for 460 V AC operation using a 4 to 20 mA signal for re- mote speed tracking control.
Page 32: Pre-Check Sequence
SECTION 8. SECTION 8. SECTION 8. 6. The COMM P.S. LED on the control board SECTION 8. SECTION 8. should light. 7. The COND DRIVE LED on the control board START ART-UP -UP AND should illuminate a second or two after power is applied.
Page 33 NOTE: DO NOT CHANGE MOTOR ROTA- NOTE: THE MAXIMUM SPEED POTENTIOM- TION BY USING THE REV SWITCH ETER LIMITS THE DRIVE'S MAXIMUM ON THE CONTROL CHIP BOARD. SPEED FOR BOTH LOCAL AND REMOTE SEE SECTION 7.3.2. OPERATION. 3. Connect the positive lead of a DC voltmeter at 7.
Page 34: Description Of Operation
HAVE EXTINGUISHED. HAVE EXTINGUISHED. HAVE EXTINGUISHED. HAVE EXTINGUISHED. HAVE EXTINGUISHED. drive. Contract the Graham Service Department for service assistance. THEN MEASURE FOR VOLTAGE THEN MEASURE FOR VOLTAGE THEN MEASURE FOR VOLTAGE THEN MEASURE FOR VOLTAGE...
Page 35 Input Snubber D1 Diode SCRs Board Module Q1 Transistor Module Inverter SCRs Diode Bridge Capacitors TYPICAL 1703 SERIES With Control Board Swung Open...
Page 36: Minimum Recommended Test Equipment
9.4 MINIMUM RECOMMENDED TEST 9.4 MINIMUM RECOMMENDED TEST 9.4 MINIMUM RECOMMENDED TEST 9.4 MINIMUM RECOMMENDED TEST 9.4 MINIMUM RECOMMENDED TEST be performed by a factory trained technician, or the control board should be replaced. Failure to check out EQUIPMENT EQUIPMENT EQUIPMENT EQUIPMENT EQUIPMENT...
Page 37: Free-Wheeling Diode
CONDUCTION/COMMUTATION CONDUCTION/COMMUTATION CONDUCTION/COMMUTATION CONDUCTION/COMMUTATION CONDUCTION/COMMUTATION OUTPUT DIODE BRIDGE MODULE OUTPUT DIODE BRIDGE MODULE OUTPUT DIODE BRIDGE MODULE OUTPUT DIODE BRIDGE MODULE OUTPUT DIODE BRIDGE MODULE TRANSISTOR MODULE TRANSISTOR MODULE TRANSISTOR MODULE TRANSISTOR MODULE TRANSISTOR MODULE Output Diode Bridge, 7.5 through 34 amp Conduction/Commutation Transistor Module, 7.5 through 28 amp Conduction/Commutation Transistor Module,...
Page 38: Input Scr Modules
9.6 DIODE, TRANSISTOR AND SCR 9.6 DIODE, TRANSISTOR AND SCR 9.6 DIODE, TRANSISTOR AND SCR 9.6 DIODE, TRANSISTOR AND SCR 9.6 DIODE, TRANSISTOR AND SCR drives. Retorque the mounting screws and wiring screws to 53 inch pounds on the 65 through 100 amp drives. REPLACEMENT REPLACEMENT REPLACEMENT...
Page 39: Output Checks
Check the +24 V DC power supply on J6-17 on the WARNING Control Board for +20 to +30 V DC. HIGH VOLTAGE WILL BE PRESENT HIGH VOLTAGE WILL BE PRESENT HIGH VOLTAGE WILL BE PRESENT HIGH VOLTAGE WILL BE PRESENT HIGH VOLTAGE WILL BE PRESENT Check the -24 V DC power supply on J6-20 on the IN THE DRIVE WHEN PERFORM-...
Page 40 T T T T T roubleshooting Flow Chart roubleshooting Flow Chart roubleshooting Flow Chart roubleshooting Flow Chart roubleshooting Flow Chart Drive does not operate normally Drive does not operate normally Drive does not operate normally Drive does not operate normally Drive does not operate normally Is input power applied to disconnect? Apply power...