EQ7 Series Instruction Manual - TECO-Westinghouse Motor Company

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Even if selecting "Trip after decelerate-to-stop" or "Continue to run," the inverter may not be able to do so when the load's inertia is small or the load is heavy, due to undervoltage caused by a control delay. In such a case, when "Trip after decelerate-to-stop" is selected, the inverter allows the motor to coast to a stop; when "Continue to run" is selected, the inverter saves the output frequency being applied when the undervoltage alarm occurred and restarts at the saved frequency after a recovery from the momentary power failure. When the input power voltage for the inverter is high, setting the continuous running level high makes the control more stable even if the load's inertia is relatively small. Raising the continuous running level too high, however, might cause the continuous running control activated even during normal operation. When the input power voltage for the inverter is extremely low, continuous running control might be activated even during normal operation, at the beginning of acceleration or at an abrupt change in load. To avoid this, lower the continuous running level. However, possible undervoltage results from voltage drop due to a control delay if set too low. Changing the continuous running level, make sure that the continuous running control will be performed properly, by considering the fluctuations of the load and the input voltage. F15, F16 Frequency Limiter (High), Frequency Limiter (Low) H63 Low Limiter (Mode selection) • Frequency Limiter (High and Low) (F15, F16) Data setting range: 0.0 to 500.0 (Hz) F15 and F16 specify the upper and lower limits of the output frequency or reference frequency, respectively. The frequency to which the limit is applied differs depending on the control system, as seen in the table. Frequency Limiter V/f control Frequency to which the limit is applied Vector control without/with speed sensor Frequency Limiter (High) F15 Output frequency Reference speed (reference frequency) Frequency Limiter (Low) F16 Reference frequency Reference speed (reference frequency) When the limit is applied to the reference frequency or reference speed, delayed responses of control may cause an overshoot or undershoot, and the frequency may temporarily go beyond the limit level. • Low Limiter (Mode selection) (H63) H63 specifies the operation to be carried out when the reference frequency drops below the low level specified by F16, as follows: Data for H63 Operation 0 The output frequency will be held at the low level specified by F16. 1 The inverter decelerates to stop the motor. (H63 = 0) (H63 = 1) • When changing the frequency limiter (High) (F15) in order to raise the reference frequency, be sure to change the maximum frequency (F03) accordingly. • Maintain the following relationship among the data for frequency control: F15 > F16, F15 > F23, and F15 > F25 F03 > F16 where, F23 and F25 specify the starting and stop frequencies, respectively. If any erroneous data for these function codes is entered, the inverter may not run the motor at the desired speed, nor start it normally. 4-49
F18 Bias (Frequency command 1) (Refer to F01.) page 4-26 F20 to F22 H95 DC Braking 1 (Braking starting frequency, Braking level, and Braking time) DC Braking (Braking response mode) F20 through F22 specify the DC braking that prevents motor 1 from running by inertia during decelerate-to-stop operation. If the motor decelerates-to-stop by turning OFF the run command or by decreasing the reference frequency below the stop frequency, the inverter activates the DC braking by injecting current at the braking level (F21) during the braking time (F22) when the output frequency is at or below the DC braking starting frequency (F20). Setting the braking time to "0.0" (F22 = 0) disables the DC braking. • Braking starting frequency (F20) Data setting range: 0.0 to 60.0 (Hz) F20 specifies the frequency at which the DC braking starts its operation during motor decelerate-to-stop state. • Braking level (F21) Data setting range: 0 to 80 (%) Variable/Constant torque inverters 0 to 100 (%) CT-Vector-mode inverters F21 specifies the output current level to be applied when the DC braking is activated. The function code data should be set, assuming the rated output current of the inverter as 100%, in increments of 1%. The inverter rated output current differs between the variable torque and constant torque modes. 0% to 100% for inverters of 7.5 HP or below. • Braking time (F22) Data setting range: 0.01 to 30.00 (s), 0.00 (Disable) F22 specifies the braking period that activates DC braking. • Braking response mode (H95) H95 specifies the DC braking response mode. When vector control without/with speed sensor is selected, the response is constant. Data for H95 Characteristics Note 0 Slow response. Slows the rising edge of the current, thereby preventing reverse rotation at the start of DC braking. Insufficient braking torque may result at the start of DC braking. 1 Quick response. Quickens the rising edge of the current, thereby accelerating the build-up of the braking torque. Reverse rotation may result depending on the moment of inertia of the mechanical load and the coupling mechanism. 4-50
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Preface The EQ7 product is designed
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7. Operation Method Configuration (
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Wiring • If no zero-phase current
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• Do not touch the heat sink and
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Conformity with UL standards and CS
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Conformity with UL standards and CS
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1.1 Drive Models Constant Torque (C
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• Storage environment The storage
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(5) Molded case circuit breaker (MC
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• From the system's safety point
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1.3 Precautions in running inverter
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Chapter 2 Mounting and Wiring the I
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Figure 2.3 Changing the Positions o
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2.3.2 Screw specifications and reco
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Power supply voltage Single-phase/
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Before removal of clip-off sections
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2.3.4 Wiring of main circuit termin
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DC reactor terminals P1 and P (+) C
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• Fan power supply switching conn
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When connecting a PWM converter wit
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Table 2.7 lists the symbols, names
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Table 2.7 Symbols, Names and Functi
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Table 2.7 Symbols, Names and Functi
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Wiring for control circuit terminal
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2.4 Mounting and Connecting the Key
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Never connect power supply wires to
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Table 3.1 Overview of Keypad Functi
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3.3 Running Mode 3.3.1 Running or s
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Table 3.4 Items Monitored (Continue
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3.4 Programming Mode Programming mo
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Basic configuration of screens Figu
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3.4.3 Checking changed function cod
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(3) Press key to establish the desi
Page 68 and 69: Basic key operation (1) Turn the in
Page 70 and 71: Chapter 4 Function Codes / Paramete
Page 72 and 73: F codes: Fundamental Functions Code
Page 74 and 75: Code Name Data setting range F37 Lo
Page 76 and 77: Change when running Data copying De
Page 80 and 81: C codes: Control Functions of Frequ
Page 82 and 83: H codes: High Performance Functions
Page 84 and 85: Code Name Data setting range H73 To
Page 86 and 87: Code Name Data setting range A18 Mo
Page 88 and 89: J codes: Application Functions 1 Co
Page 92 and 93: Inverter capacity HP 0.5 Auto-resta
Page 94 and 95: Table B Motor Parameters (Continued
Page 96 and 97: Configuring a reference frequency [
Page 98 and 99: • Gain and bias If F01 = 3 (the s
Page 100 and 101: • Specifying the initial value fo
Page 102 and 103: • Pulse count factor 1 (d62), Pul
Page 104 and 105: F03 Maximum Frequency 1 F03 specifi
Page 106 and 107: In vector control, current feedback
Page 108 and 109: • Acceleration/Deceleration patte
Page 110 and 111: F10 to F12 Electronic Thermal Overl
Page 112 and 113: F14 Restart Mode after Momentary Po
Page 114 and 115: If you enable the "Restart mode aft
Page 116 and 117: • Restart mode after momentary po
Page 120 and 121: It is also possible to use an exter
Page 122 and 123: The table below shows the condition
Page 124 and 125: F29 to F31 F32, F34, F35 Analog Out
Page 126 and 127: • V/f characteristics The EQ7 ser
Page 128 and 129: Related function codes Function cod
Page 130 and 131: Under vector control without/with s
Page 132 and 133: Data for H75 Target quadrants Patte
Page 134 and 135: F42 Drive Control Selection 1 H68 (
Page 136 and 137: F43, F44 Current Limiter (Mode sele
Page 138 and 139: • Allowable average loss (F51) Th
Page 140 and 141: 4.2.2 E codes (Extension Terminal F
Page 142 and 143: Terminal function assignment and da
Page 144 and 145: • When the motor speed decreases
Page 146 and 147: Example of Operation Time Scheme Al
Page 148 and 149: When the PID control is disabled: T
Page 150 and 151: Circuit Diagram and Configuration M
Page 152 and 153: Examples of Sequence Circuits 1) St
Page 154 and 155: • Enable battery operation -- BAT
Page 156 and 157: Precautions (1) The battery power s
Page 158 and 159: Function code data Active ON Active
Page 160 and 161: • Universal DO -- U-DO (Function
Page 162 and 163: • Enable input OFF -- EN OFF (Fun
Page 164 and 165: E34, E35 Overload Early Warning/Cur
Page 166 and 167: • Display coefficients for PID da
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E44 LED Monitor (Display when stopp
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E54 Frequency Detection 3 (Level) (
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E64 Saving of Digital Reference Fre
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4.2.3 C codes (Control functions) C
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C20 Jogging Frequency H54, H55 (Acc
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4.2.4 P codes (Motor 1 Parameters)
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P05, A19 Motor 1 / 2 (Online tuning
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P53, P54 Motor 1 (%X correction fac
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Chapter 6 Speed Reference Command C
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Analog Reference: 0 - 20mA / 4 - 20
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H30 Communications Link Function Se
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7.2 Run/Stop from External Switch /
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7.3 Run/Stop from Serial Communicat
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Chapter 8 Motor and Application Spe
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8.3 Torque Boost (F09, Default 0.1)
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When the variable torque V/f patter
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Chapter 9 Using PID Control for Con
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Feedback Signal 0 - 10V (E61 = 5) G
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Chapter 10 Troubleshooting 10.1 Pro
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Table 10.1 Abnormal States Detectab
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10.3 If Neither an Alarm Code Nor "
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Possible Causes (5) The acceleratio
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[ 6 ] The motor does not accelerate
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10.3.2 Problems with inverter setti
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[ 3 ] Overvoltage Problem The DC li
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[ 7 ] Heat sink overheat Problem Te
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[ 12 ] Fuse blown Problem The fuse
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[ 17 ] PG wire break Problem The pu
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[ 24 ] Tuning error Problem Auto-tu
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[ 28 ] Speed mismatch or excessive
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[ 36 ] Enable circuit failure Probl
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10.7 If the Inverter is Running on
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VT mode designed for variable torqu
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CT mode designed for constant torqu
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VT mode designed for variable torqu
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l Item Specifications Remarks Enabl
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Item Specifications Remarks Overcur
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11.3 External Dimensions 11.3.1 Sta
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11.3.3 DC reactor (DCR) Power suppl
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Figure A Figure B Figure C Figure D
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11.3.5 Keypad (TP-G1W-J1) Drill fou
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EQ7 Series Instruction Manual - TECO-Westinghouse Motor Company

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