Allen-Bradley PowerFlex 70 - Adjustable Frequency AC Drive Quick Start Guide

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Allen-Bradley PowerFlex 70 - Adjustable Frequency AC Drive Quick Start Guide

General Precautions

warning ATTENTION: This drive contains ESD (Electrostatic Discharge) sensitive parts and assemblies. Static control precautions are required when installing, testing, servicing or repairing this assembly. Component damage may result if ESD control procedures are not followed. If you are not familiar with static control procedures, reference A-B publication 8000-4.5.2, "Guarding Against Electrostatic Damage" or any other applicable ESD protection handbook.

warning ATTENTION: An incorrectly applied or installed drive can result in component damage or a reduction in product life. Wiring or application errors, such as, undersizing the motor, incorrect or inadequate AC supply, or excessive ambient temperatures may result in malfunction of the system.

warning ATTENTION: Only qualified personnel familiar with adjustable frequency AC drives and associated machinery should plan or implement the installation, start-up and subsequent maintenance of the system. Failure to comply may result in personal injury and/or equipment damage.

warning ATTENTION: To avoid an electric shock hazard, verify that the voltage on the bus capacitors has discharged before performing any work on the drive. Measure the DC bus voltage at the +DC terminal of the Power Terminal Block and the -DC test point (refer to the User Manual for location). The voltage must be zero.

warning ATTENTION: Configuring an analog input for 0-20mA operation and driving it from a voltage source could cause component damage. Verify proper configuration prior to applying input signals.

warning ATTENTION: Hazard of personal injury or equipment damage exists when using bipolar input sources. Noise and drift in sensitive input circuits can cause unpredictable changes in motor speed and direction. Use speed command parameters to help reduce input source sensitivity.

warning ATTENTION: Risk of injury or equipment damage exists. DPI or SCANport host products must not be directly connected together via 1202 cables. Unpredictable behavior can result if two or more devices are connected in this manner.

warning ATTENTION: The "adjust freq" portion of the bus regulator function is extremely useful for preventing nuisance overvoltage faults resulting from aggressive decelerations, overhauling loads, and eccentric loads. It forces the output frequency to be greater than commanded frequency while the drive's bus voltage is increasing towards levels that would otherwise cause a fault; however, it can also cause either of the following two conditions to occur.

  1. Fast positive changes in input voltage (more than a 10% increase within 6 minutes) can cause uncommanded positive speed changes; however an "OverSpeed Limit" fault will occur if the speed reaches [Max Speed] + [Overspeed Limit]. If this condition is unacceptable, action should be taken to
    1. limit supply voltages within the specification of the drive and,
    2. limit fast positive input voltage changes to less than 10%. Without taking such actions, if this operation is unacceptable, the "adjust freq" portion of the bus regulator function must be disabled (see parameters 161 and 162).
  2. Actual deceleration times can be longer than commanded deceleration times; however, a "Decel Inhibit" fault is generated if the drive stops decelerating altogether. If this condition is unacceptable, the "adjust freq" portion of the bus regulator must be disabled (see parameters 161 and 162). In addition, installing a properly sized dynamic brake resistor will provide equal or better performance in most cases.

warning Note: These faults are not instantaneous and have shown test results that take between 2 and 12 seconds to occur.

Mount the Drive – Minimum Requirements

Minimum Mounting Clearances


Specified vertical clearance requirements are intended to be from drive to drive. Other objects can occupy this space; however, reduced airflow may cause protection circuits to fault the drive. In addition, inlet air temperature must not exceed the product specification.

Maximum Surrounding Air Temperature

Enclosure Rating Temperature Range
Open Type, IP 20, NEMA Type 1 & Flange Mount 0 - 50°C (32 - 122°F)
IP54, IP 66 & NEMA Type 4X/12 0 - 40°C (32 - 104°F)


Some drives are equipped with an adhesive label on the top of the chassis. Removing the adhesive label from the drive changes the NEMA enclosure rating from Type 1 Enclosed to Open Type.

Dimensions

Table B
PowerFlex 70 Frames

Output Power Frame Size
kW ND (HD) HP ND (HD) 208-240V AC Input 400-480V AC Input 600V AC Input
Not Filtered Filtered IP66 (4X/12) Not Filtered Filtered IP66 (4X/12) Not Filtered Filtered IP66 (4X/12)
0.37 (0.25) 0.5 (0.33) A B B A B B A B
0.75 (0.55) 1 (0.75) A B B A B B A B
1.5 (1.1) 2 (1.5) B B B A B B A B
2.2 (1.5) 3 (2) B B B B B B B B
4 (3) 5 (3) C D B B B B B
5.5 (4) 7.5 (5) D D C D C D
7.5 (5.5) 10 (7.5) D D C D C D
11 (7.5) 15 (10) D D D D D D
15 (11) 20 (15) E E D D D D
18.5 (15) 25 (20) E E D D D D
22 (18.5) 30 (25) D D D D
30 (22) 40 (30) E E E E
37 (30) 50 (40) E E E E

Frames A-E
Figure 1
PowerFlex 70 Frames A-E P20/66 (NEMA Type 1/4X/12)

Flange Mount
Flange Mount

Dimensions are in millimeters and (inches).

Frame A B C D E F Weight (1)
kg (lbs.)
IP20 / NEMA Type 1
A 122.4 (4.82) 225.7 (8.89) 179.8 (7.08) 94.2 (3.71) 211.6 (8.33) 5.8 (0.23) 2.71 (6.0)
B 171.7 (6.76) 234.6 (9.24) 179.8 (7.08) 122.7 (4.83) 220.2 (8.67) 5.8 (0.23) 3.60 (7.9)
C 185.0 (7.28) 300.0 (11.81) 179.8 (7.08) 137.6 (5.42) 285.6 (11.25) 5.8 (0.23) 6.89 (15.2)
D 219.9 (8.66) 350.0 (13.78) 179.8 (7.08) 169.0 (6.65) 335.6 (13.21) 5.8 (0.23) 9.25 (20.4)
E 280.3 (11.04) 555.8 (21.88) 207.1 (8.15) 200.0 (7.87) 491.0 (19.33) 6.9 (0.27) 18.60 (41.0)

IP66 / NEMA Type 4X/12

Frame A B C D E F Weight (1)
kg (lbs.)
B 171.7 (6.76) 239.8 (9.44) 203.3 (8.00) 122.7 (4.83) 220.2 (8.67) 5.8 (0.23) 3.61 (8.0)
D 219.9 (8.66) 350.0 (13.78) 210.7 (8.29) 169.0 (6.65) 335.6 (13.21) 5.8 (0.23) 9.13 (20.1)
E 280.3 (11.04) 555.8 (21.88) 219.8 (8.65) 200.0 (7.87) 491.0 (19.33) 6.9 (0.27) 18.60 (41.0)

Flange Mount

Frame A B C D E F Weight (1)
kg (lbs.)
A 156.0 (6.14) 225.8 (8.89) 178.6 (7.03) 123.0 (4.84) 55.6 (2.19) 2.71 (6.0)
B 205.2 (8.08) 234.6 (9.24) 178.6 (7.03) 123.0 (4.84) 55.6 (2.19) 3.60 (7.9)
C 219.0 (8.62) 300.0 (11.81) 178.6 (7.03) 123.0 (4.84) 55.6 (2.19) 6.89 (15.2)
D 248.4 (9.78) 350.0 (13.78) 178.6 (7.03) 123.0 (4.84) 55.6 (2.19) 9.25 (20.4)
E 280.3 (11.04) 555.8 (21.88) 207.1 (8.15) 117.2 (4.61) 89.9 (3.54) 18.60 (41.0)

(1) Weights include HIM and Standard I/O.

Wire the Drive – Wire Recommendations

Type Wire Type(s) Description Min. Insulation Rating
Power (1) Standard 600V, 90°C (194°F) XHHW2/RHW-2
Anixter
B209500-B209507, Belden
29501-29507, or equivalent
  • Four tinned copper conductors with XLPE insulation.
  • Copper braid/aluminum foil combination shield and tinned copper drain wire.
  • PVC jacket.
Signal
(1) (2) (3)
Standard Analog I/O Belden 8760/9460(or equiv.) 0.750 mm2(18AWG), twisted pair, 100% shield with drain. 300V, 75-90 degrees C (167-194 degrees F)
Belden 8770(or equiv.) 0.750 mm2(18AWG), 3 cond., shielded for remote pot only.
Digital I/O
(1) (2) (3)
Shielded Multi-conductor shielded cable such as Belden 8770 (or equiv.) 0.750 mm2(18AWG), 3 conductor, shielded. 300V, 60 degrees C (140 degrees F)

(1) Control and signal wires should be separated from power wires by at least 0.3 meters (1 foot).

(2) If the wires are short and contained within a cabinet which has no sensitive circuits, the use of shielded wire may not be necessary, but is always recommended.

(3) I/O terminals labeled "(–)" or "Common" are not referenced to earth ground and are designed to greatly reduce common mode interference. Grounding these terminals can cause signal noise.

Terminal Block Specifications

Name Frame Description Wire Size Range (1) Torque
Maximum Minimum Maximum Recommended
Power Terminal Block A, B & C Input power and motor connections 3.5 mm2
(12 AWG)
0.3 mm2
(22 AWG)
0.66 N-m (5.5 lb.-in.) 0.6 N-m (5 lb.-in.)
D Input power and motor connections 8.4 mm2
(8 AWG)
0.8 mm2
(18 AWG)
1.7 N-m (15 lb.-in.) 1.4 N-m (12 lb.-in.)
E Input power and motor connections 25.0 mm2
(3 AWG)
2.5 mm2
(14 AWG)
2.71 N-m (24 lb.-in.) 2.71 N-m (24 lb.-in.)
I/O Terminal Block All Signal & control connections 1.5 mm2 (16 AWG) 0.05 mm2 (30 AWG) 0.55 N-m
(4.9 lb.-in.)
0.5 N-m
(4.4 lb.-in.)
SHLD Terminal All Terminating point for wiring shields 1.6 N-m
(14 lb.-in.)
1.6 N-m
(14 lb.-in.)

(1) Maximum/minimum sizes that the terminal block will accept - these are not recommendations.

Power & Ground Wiring

Power & Ground Wiring

Standard and Enhanced Control I/O Terminal Block

No. Signal Factory Default Description Related Param.
1 Digital In 1 Stop – CF
(CF = Clear Fault)

11.2 mA @ 24V DC
19.2V minimum on state
3.2V maximum off state


Use only 24V DC, not suitable for 115V AC circuitry.

Inputs can be wired as sink or source. See "I/O Wiring Examples"

361 - 366
2 Digital In 2 Start
3 Digital In 3 Auto/Man
4 Digital In 4 Speed Sel 1
5 Digital In 5 Speed Sel 2
6 Digital In 6 Speed Sel 3
7 24V Common Drive supplied power for Digital In1-6 inputs.
See examples on "I/O Wiring Examples".
150mA maximum load.
8 Digital In Common
9 +24V DC
10 +10V Pot Reference 2 k ohm minimum load.
11 Digital Out 1 – N.O.(1) NOT Fault

Max Resistive Load
250V AC / 30V DC
50 VA / 60 Watts

Minimum DC Load
10 µA, 10 mV DC

Max Inductive Load
250V AC / 30V DC
25 VA / 30 Watts

380 -
387
12 Digital Out 1 Common
13 Digital Out 1 – N.C.(1) Fault
14 Analog In 1 (– Volts) (2)
Voltage – Reads value at 14 & 15
Non-isolated, 0 to +10V, 10 bit, 100k ohm input impedance.(3) 320 - 327
15 Analog In 1 (+ Volts)
16 Analog In 1 (– Current) Non-isolated, 4-20mA, 10 bit, 100 ohm input impedance.(3)
17 Analog In 1 (+ Current)
18 Analog In 2 (– Volts) (2)
Voltage – Reads value at 18 & 19
Isolated, bipolar, differential, 0 to +10V unipolar (10 bit) or ±10V bipolar (10 bit & sign), 100k ohm input impedance.(4)
19 Analog In 2 (+ Volts)
20 Analog In 2 (– Current) Isolated, 4-20mA, 10 bit & sign, 100 ohm input impedance.(4)
21 Analog In 2 (+ Current)
22 10V Pot Common
Analog Out (– Volts)
Analog Out (– Current)
(2)
Output Freq
0 to +10V, 10 bit, 10k ohm (2k ohm minimum) load.
0 to 20mA, 10 bit, 400 ohm maximum load.(5)
Referenced to chassis ground.
Common if internal 10V supply (terminal 10) is used.
340 - 344
23 Analog Out (+ Volts)
Analog Out (+ Current)
24 Digital Out 2 – N.O.(1) Run See description at No.s 11-13. 380 - 387
25 Digital Out 2 Common
26 Digital Out 2 – N.C.(1) NOT Run

(1) Contacts shown in unpowered state. Any relay programmed as Fault or Alarm will energize (pick up) when power is applied to drive and deenergize (drop out) when fault or alarm exists. Relays selected for other functions will energize only when that condition exists and will deenergize when condition is removed.

(2) These inputs/outputs are dependent on a number of parameters. See "Related Parameters."

(3) Differential Isolation - External source must be less than 10V with respect to PE.

(4) Differential Isolation - External source must be maintained at less than 160V with respect to PE. Input provides high common mode immunity.

(5) Analog output current is only available with Enhanced Control drives.

I/O Wiring Examples

Input/Output Connection Example(3) Related Param.

Potentiometer(1)
10k Ohm Pot.
Recommended
(2k Ohm minimum)

Joystick(1)
±10V Input 100k ohm input impedance

[Speed Ref A Sel] = "Analog In 1"

090 to 095

320 to 327

361 to 366

Potentiometer Joystick

Analog Input

Bipolar: ±10V

Unipolar: 0 to +10V, 100k ohm impedance 4-20 mA, 100 ohm impedance

[Speed Ref A Sel] = "Analog In 2"
Bipolar(1) Unipolar (Voltage) Unipolar (Current)

Analog/Digital Output

0 to +10V Output - Can drive a 2k
Ohm load (25 mA short circuit current limit)

Analog Output Digital N.O. / N.C. Output

341 to 344

380 to 387

2 Wire Control(2) - Non-Reversing

Requires 2-wire functions only

([Digital In1 Sel]). Using 3-wire selections will cause a type 2 alarm.

24V DC Input(4): [Digital In2 Sel] = "Run" 361 to 366
Internal Supply External Supply

3 Wire Control

Requires 3-wire functions only

([Digital In1 Sel]). Using 2-wire selections will cause a type 2 alarm.

24V DC Input(4): [Digital In1 Sel] = "Stop – CF", [Digital In2 Sel] = "Start"
Internal Supply External Supply

(1) Refer to the Attention statement for important bipolar wiring information.

(2)
Programming inputs for 2 wire control deactivates all HIM Start buttons.

(3) Examples show hardware wiring only. Refer for parameters that must be adjusted.

(4) If desired, a User Supplied 24V DC power source can be used. Refer to the "External" example.

Start-Up Check List

  1. Verify input supply voltage.
  2. Check output wiring.
  3. Check control wiring.
  4. Apply AC power and control voltages to the drive.
    If any of the six digital inputs are configured to Stop – CF (CF = Clear Fault) or Enable, verify that signals are present or the drive will not start. Refer to Troubleshooting – Abbreviated Fault & Alarm Listing for a list of potential digital input conflicts.
    If the STS LED is not flashing green at this point, refer to Status Indicators.
  5. Select Start-Up method: SMART Start or Assisted Start-Up.

Status Indicators

Name Color State Description
Green Flashing Drive ready, but not running and no faults are present.
Steady Drive running, no faults are present.
Yellow Flashing, Drive Stopped An inhibit condition exists, the drive cannot be started. Check parameter 214 [Start Inhibits].
Flashing, Drive Running An intermittent type 1 alarm condition is occurring. Check parameter 211 [Drive Alarm 1].

Steady,

Drive Running

A continuous type 1 alarm condition exists. Check parameter 211 [Drive Alarm 1].
Red Flashing A fault has occurred.
Steady A non-resettable fault has occurred.
Refer to the Communication Adapter User Manual. Status of DPI port internal communications (if present).
Status of communications module (when installed).
Status of network (if connected).
Status of secondary network (if connected).

Program the Drive – Parameter Files & Groups

Program the Drive – Parameter Files & Groups

Frequently Used Parameters



MOTOR CONTROL (File B)



Motor Data 041
[Motor NP Volts]
Set to the motor nameplate rated volts.
Default: Drive Rating
Min/Max: Based 0.0/[Rated Volts]
Units: 0.1 VAC
042
[Motor NP FLA]
Set to the motor nameplate rated full load amps.
Default: Drive Rating Based
Min/Max: 0.0/[Rated Amps] × 2
Units: 0.1 Amps
047 048
045

Set [Motor NP Power]
to the motor nameplate rated power.
Default: Drive Rating Based
Min/Max: 0.00/100.
00 0.00/412.48

Units: 0.01 kW/HP
See [Mtr NP Pwr Units]
046
046
[Mtr NP Pwr Units]
Selects the motor power units to be used.

Default: Drive Rating Based

Options:
0 "Horsepower"
1 "kiloWatts"

047
[Motor OL Hertz]
Selects the output frequency below which the motor operating current is derated. The motor thermal overload will generate a fault at lower levels of current.
Default: Motor NP Hz/3
Min/Max: 0.0/500.0 Hz
Units: 0.1 Hz
042 220
Torq Attributes 053
Standard
[Torque Perf Mode]
Sets the method of motor torque production.
Default: 0 "Sensrls Vect" Options:
0
"Sensrls Vect"
1 "SV Economize"
2 "Custom V/Hz"
3 "Fan/Pmp V/Hz"
062 063 069 070


[Motor Cntl Sel]
Sets the method of motor control used in the drive.
"FVC Vector" mode requires autotuning of the motor, both coupled and uncoupled to the load.

(1) Enhanced firmware 2.001 & later.

Default: 0 "Sensrls Vect" Options:
0 "Sensrls Vect"
1 "SV Economize"
2 "Custom V/Hz"
3 "Fan/Pmp V/Hz"
4 "FVC Vector" (1)
061
[Autotune]
Provides a manual or automatic method for setting [IR Voltage Drop] and [Flux Current Ref], which affect sensorless vector performance. Valid only when parameter 53 is set to "Sensrls Vect" or "SV Economize."
Default: 3 "Calculate" Options:
0 "Ready"
1 "Static Tune"
2 "Rotate Tune"
3 "Calculate"
053
062

"Ready" (0) = Parameter returns to this setting following a "Static Tune" or "Rotate Tune." It also permits manually setting [IR Voltage Drop] and [Flux Current Ref]. "Static Tune" (1) = A temporary command that initiates a non-rotational motor stator resistance test for the best possible automatic setting of [IR Voltage Drop]. A start command is required following initiation of this setting. The parameter returns to "Ready" (0) following the test, at which time another start transition is required to operate the drive in normal mode. Used when motor cannot be rotated.

"Rotate Tune" (2) = A temporary command that initiates a "Static Tune" followed by a rotational test for the best possible automatic setting of [Flux Current Ref]. A start command is required following initiation of this setting. The parameter returns to "Ready" (0) following the test, at which time another start transition is required to operate the drive in normal mode.


Used when motor is uncoupled from the load. Results may not be valid if a load is coupled to the motor during this procedure.

warning ATTENTION: Rotation of the motor in an undesired direction can occur during this procedure. To guard against possible injury and/or equipment damage, it is recommended that the motor be disconnected from the load before proceeding.
"Calculate" (3) = This setting uses motor nameplate data to automatically set [IR Voltage Drop] and [Flux Current Ref].
SPEED COMMAND (File C) Spd Mode & Limits 080
Standard
[Speed Mode]
Sets the method of speed regulation.

Default: 0 "Open Loop"

Options:
0 "Open Loop"
1 "Slip Comp"
2 "Process PI"

121
thru
138
[Feedback Select]
Selects the source for motor speed feedback. Note that all selections are available when using Process PI.
"Open Loop" (0) - no encoder is present, and slip compensation is not needed.
"Slip Comp" (1) - tight speed control is needed, and encoder is not present.
"Encoder" (3) - an encoder is present.
"Simulator" (5) - Simulates a motor for testing drive operation & interface check.

Default: 0 "Open Loop"

Options:
0 "Open Loop"
1 "Slip Comp"
2 "Reserved"
3 "Encoder"
4 "Reserved"
5 "Simulator"

081
[Minimum Speed]
Sets the low limit for speed reference after scaling is applied. Refer to parameter 083 [Overspeed Limit].
Default: 0.0 Hz Min/Max: 0.0/[Maximum Speed]
Units: 0.1 Hz
092
095
082
[Maximum Speed]
Sets the high limit for speed reference after scaling is applied. Refer to parameter 083 [Overspeed Limit].
Default: 50.0 or 60.0 Hz (Dependent on voltage class)

Min/Max:
5.0/400.0 Hz 5.0/500.0 Hz

Units: 0.0 Hz
055
083
091
094
202
Speed Reference 090

[Speed Ref A Sel]
Selects the source of the speed reference to the drive unless [Speed Ref B Sel] or [Preset Speed 1-7] is selected.

For more information on selecting a speed reference source, refer to the PowerFlex 70 User Manual, "Speed Reference Control".

(1) See Appendix B of the User Manual for DPI port locations.

(2) Enhanced Control Drives Only.

Default: 2 "Analog In 2"

Options:

1 "Analog In 1"
2 "Analog In 2"
3-8 "Reserved"
9 "MOP Level"
10 "Reserved"
11 "Preset Spd1"
12 "Preset Spd2"
13 "Preset Spd3"
14 "Preset Spd4"
15 "Preset Spd5"
16 "Preset Spd6"
17 "Preset Spd7"
18 "DPI Port 1" (1)
19 "DPI Port 2" (1)
20 "DPI Port 3" (1)
21 "Reserved"
22 "DPI Port 5" (1)
23-29 "Reserved"
30 "HighRes Ref" (2)

002 091 thru 093 101 thru 107 117 thru 120 192 thru 194 213 272 273 320 361 thru 366
091 [Speed Ref A Hi]
Scales the upper value of the [Speed Ref A Sel] selection when the source is an analog input.
Default: [Maximum Speed]
Min/Max: –/+[Maximum Speed]
Units: 0.1 Hz
082
092 [Speed Ref A Lo]
Scales the lower value of the [Speed Ref A Sel] selection when the source is an analog input.
Default: 0.0 Hz
Min/Max: –/+[Maximum Speed]
Units: 0.1 Hz
081
Discrete Speeds 101 102 103 104 105 106 107 [Preset Speed 1]
[Preset Speed 2]
[Preset Speed 3]
[Preset Speed 4]
[Preset Speed 5]
[Preset Speed 6]
[Preset Speed 7]
Provides an internal fixed speed command value. In bipolar mode direction is commanded by the sign of the reference.

Default:
5.0 Hz
10.0 Hz
20.0 Hz
30.0 Hz
40.0 Hz
50.0 Hz
60.0 Hz

Min/Max: –/+[Maximum Speed]

Units: 0.1 Hz

090 093
DYNAMIC CONTROL (File D) Ramp Rates 140
141

[Accel Time 1]
[Accel Time 2]
Sets the rate of accel for all speed increases.

Default: 10.0 Secs 10.0 Secs

Min/Max: 0.1/3600.0 Secs

Units: 0.1 Secs

142 143 146 361 thru 366
142
143

[Decel Time 1]
[Decel Time 2]
Sets the rate of decel for all speed decreases.

Default: 10.0 Secs 10.0 Secs

Min/Max: 0.1/3600.0 Secs

Units: 0.1 Secs

140 141 146 361 thru 366
Load Limits 148 [Current Lmt Val]
Defines the current limit value when [Current Lmt Sel] = "Cur Lim Val."

Default: [Rated Amps] × 1.5 (Equation approximates default value.)

Min/Max: Drive Rating Based

Units: 0.1 Amps

147 149
151 [PWM Frequency]
Sets the carrier frequency for the PWM output. Drive derating may occur at higher carrier frequencies. For derating information, refer to the PowerFlex Reference Manual, publication PFLEX-RM001....

Default: 4 kHz

Min/Max: 2, 3, 4, 5, 6, 7, 8, 9, 10 kHz
2, 4, 8, 12 kHz

Units: 1 kHz

Stop/Brake Modes 155
156

Standard [Stop Mode A]
Standard [Stop Mode B]

Active stop mode. [Stop Mode A] is active unless [Stop Mode B] is selected by inputs.

(1) When using options 1 or 2, refer to the Attention statements at [DC Brake Level].

Default: 1 "Ramp"
Default: 0 "Coast"

Options:
0 "Coast"
1 "Ramp" (1)
2 "Ramp to Hold" (1)
3 "DC Brake"

155 156
warning ATTENTION: If a hazard of injury do to movement of equipment or material exists, an auxiliary mechanical braking device must be used.
[Stop/Brk Mode A]
[Stop/Brk Mode B]
See description above.
161 162

[Bus Reg Mode A]
[Bus Reg Mode B]
Sets the method and sequence of the DC bus regulator voltage. Choices are dynamic brake, frequency adjust or both.
Sequence is determined by programming or digital input to the terminal block.

Dynamic Brake Setup
If a dynamic brake resistor is connected to the drive, both these parameters must be set to either option 2, 3 or 4.

Refer to the Attention statement for important information on bus regulation.

Default:
1 "Adjust Freq"
4 "Both-Frq 1st"

Options:
0 "Disabled"
1 "Adjust Freq"
2 "Dynamic Brak"
3 "Both-DB 1st"
4 "Both-Frq 1st"

160 163
warning ATTENTION: The drive does not offer protection for externally mounted brake resistors. A risk of fire exists if external braking resistors are not protected. External resistor packages must be self-protected from over temperature or a protective circuit must be supplied. See the PowerFlex 70 User Manual for more information.
163 [DB Resistor Type]
Selects whether the internal or an external DB resistor will be used. If a dynamic brake resistor is connected to the drive, [Bus Reg Mode A & B] must be set to either option 2, 3 or 4.

Default:
0 "Internal Res"
2 "None"

Options:
0 "Internal Res"
1 "External Res"
2 "None"

161
162

warning ATTENTION: The drive does not offer protection for externally mounted brake resistors. A risk of fire exists if external braking resistors are not protected. External resistor packages must be self-protected from over temperature or the protective circuit shown in Appendix C of the User Manual, or equivalent, must be supplied.

warning ATTENTION: Equipment damage may result if a drive mounted (internal) resistor is installed and this parameter is set to "External Res." Thermal protection for the internal resistor will be disabled, resulting in possible device damage.

Resistant Modes 169 [Flying Start En]
Enables/disables the function which reconnects to a spinning motor at actual RPM when a start command is issued.

Default: 0 "Disabled"

Options:
0 "Disabled"
1 "Enabled"

170
UTILITY (File E) Drive Memory 201 [Language]
Selects the display language when using an LCD HIM. This parameter is not functional with an LED HIM.

Default: 0 "Not Selected"

Options:
0 "Not Selected"
1 "English"
2 "Français"
3 "Español"
4 "Italiano"
5 "Deutsch"
6 "Reserved"
7 "Português"
8-9 "Reserved"
10 "Nederlands"

INPUTS & OUTPUTS (File J) Analog Inputs 322 325 [Analog In 1 Hi]
[Analog In 2 Hi]
Sets the highest input value to the analog input x scaling block.

Default: 10.000 Volt 10.000 Volt

Min/Max:
4.000/20.000 mA Standard ,
0.000/20.000 mA ,
–/+10.000V,
0.000/10.000V

Units: 0.001 mA,
0.001 Volt

091 092
323 326 [Analog In 1 Lo]
[Analog In 2 Lo]
Sets the lowest input value to the analog input x scaling block.

Default: 0.000 Volt
0.000 Volt

Min/Max:
4.000/20.000 mA,
0.000/10.000V (No. 323),

Units: –/+10.000V (No. 326)
0.000/10.000V,
0.001 mA, 0.001 Volt

091 092
Digital Inputs 361 362 363 364 365 366

[Digital In1 Sel]
[Digital In2 Sel]
[Digital In3 Sel]
[Digital In4 Sel]
[Digital In5 Sel]
[Digital In6 Sel]
Selects the function for the digital inputs.

(1) When [Digital Inx Sel] is set to option 2 "Clear Faults" the Stop button cannot be used to clear a fault condition.

(2)

3 2 1 "Speed Sel 1-3"
0 0 0 Reference A
0 0 1 Reference B
0 1 0 Preset Speed 2
0 1 1 Preset Speed 3
1 0 0 Preset Speed 4
1 0 1 Preset Speed 5
1 1 0 Preset Speed 6
1 1 1 Preset Speed 7

To access Preset Speed 1, set [Speed Ref A Sel] or [Speed Ref B Sel] to "Preset Speed 1".

(3)

3 2 1 "Spd/Trq Sel1-3"
0 0 0 Zero Torque
0 0 0 Zero Torque
0 0 1 Spd Reg
0 1 0 Torque Reg
0 1 1 Min Spd/Trq
1 0 0 Max Spd/Trq
1 0 1 Sum Spd/Trq
1 1 0 Absolute
1 1 1 Zero Trq

(4) Enhanced Control Drives Only.

(5) Enhanced Firmware V2.001 and later.

(6) Opening an "Enable" input will cause the motor to coast-to-stop, ignoring any programmed Stop modes.

(7) A dedicated hardware enable input is available via a jumper selection. Refer to the User Manual for further information.

(8) Auto/Manual - Refer to the User Manualfor details.

(9) Typical 3-Wire Inputs - Requires that only 3-wire functions are chosen. Including 2-wire selections will cause a type 2 alarm.

(10) Typical 2-Wire Inputs - Requires that only 2-wire functions are chosen. Including 3-wire selections will cause a type 2 alarm.

(11) A "Dig In ConflictB" alarm will occur if a "Start" input is programmed without a "Stop" input. Type 2 Alarms - Some digital input programming may cause conflicts that will result in a Type 2 alarm. Example: [Digital In1 Sel] set to 5 "Start" in 3-wire control and [Digital In2 Sel] set to 7 "Run" in 2-wire. Refer to the User Manual for information on resolving this type of conflict.

(12) Refer to Option Definitions in the User Manual.

Default:
4 "Stop – CF" (1)
Default: 5 "Start"
Default: 18 "Auto/ Manual"
Default: 15 "Speed Sel 1"
Default: 16 "Speed Sel 2"
Default: 17 "Speed Sel 3"

Options:
0 "Not Used"
1 "Enable" (6)
2 "Clear Faults" (1)
3 "Aux Fault"
4 "Stop – CF" (1)
5 "Start" (9)(11)
6 "Fwd/ Reverse" (9)
7 "Run" (10)
8 "Run Forward" (3)
9 "Run Reverse" (3)
10 "Jog" (9) "Jog1" (4)
11 "Jog Forward"
12 "Jog Reverse"
13 "Stop Mode B"
14 "Bus Reg Md B"
15-17 "Speed Sel 1-3" (2)
18 "Auto/ Manual" (8)
19 "Local"
20 "Acc2 & Dec2"
21 "Accel 2"
22 "Decel 2"
23 "MOP Inc" (12)
24 "MOP Dec" (12)
25 "Excl Link" (12)
26 "PI Enable"
27 "PI Hold"
28 "PI Reset"
29 "Reserved"
30 "Precharge En" (4)(12)
31-33 "Spd/Trq Sel1-3" (5)
34 "Jog 2" (4)
35 "PI Invert" (4)
36-40 "Reserved" 41-42 "UserSet Sel1-2" (5)
43 "Run Level" (5)(12)
44 "RunFwd Level" (5)(12)
45 "RunRev Level" (5)(12)
46 "Run w/Comm" (5)(12)

100 156 162 096 140 194 380 124

Troubleshooting – Abbreviated Fault & Alarm Listing

For a complete listing of Faults and Alarms, refer to the PowerFlex 70 User Manual.

Fault No. Type(1) Description Action
Auxiliary Input 2 Auxiliary input interlock is open. Check remote wiring.
Motor Overload 7 Internal electronic overload trip.
Enable/Disable with [Fault Config 1].
An excessive motor load exists. Reduce load so drive output current does not exceed the current set by [Motor NP FLA].
OverSpeed Limit 25 Functions such as Slip Compensation or Bus Regulation have attempted to add an output frequency adjustment greater than that programmed in [Overspeed Limit]. Remove excessive load or overhauling conditions or increase [Overspeed Limit].
SW OverCurrent 36 Drive output current has exceeded the 1ms current rating. This rating is greater than the 3 second current rating and less than the hardware overcurrent fault level. It is typically 200-250% of the drive continuous rating. Check for excess load, improper DC boost setting. DC brake volts set too high.
IR Volts Range 77 "Calculate" is the autotune default and the value determined by the autotune procedure for IR Drop Volts is not in the range of acceptable values. Re-enter motor nameplate data.
FluxAmpsRef Rang 78 The value for flux amps determined by the Autotune procedure exceeds the programmed [Motor NP FLA].
  1. Reprogram [Motor NP FLA] with the correct motor nameplate value.
  2. Repeat Autotune.

(1) See the User Manual for a description of fault types.

Alarm No. Type(1) Description
Dig In ConflictA 17 Digital input functions are in conflict. Combinations marked with a "" will cause an alarm.
Acc2/Dec2 Accel 2 Decel 2 Jog Jog Fwd Jog Rev Fwd/Rev
Acc2 / Dec2
Accel 2
Decel 2
Jog
Jog Fwd
Jog Rev
Fwd / Rev
Dig In ConflictB 18 A digital Start input has been configured without a Stop input or other functions are in conflict. Combinations that conflict are marked with a "" and will cause an alarm.
Start Stop-CF Run Run Fwd Run Rev Jog Jog Fwd Jog Rev Fwd/Rev
Start
Stop-CF
Run
Run Fwd
Run Rev
Jog
Jog Fwd
Jog Rev
Fwd / Rev
Dig In ConflictC 19

More than one physical input has been configured to the same input function. Multiple configurations are not allowed for the following input functions.

Forward/Reverse Run Reverse Bus Regulation Mode B
Speed Select 1 Jog Forward Acc2 / Dec2
Speed Select 2 Jog Reverse Accel 2
Speed Select 3 Run Decel 2
Run Forward Stop Mode B

(1) See User Manual for a description of alarm types.

Manually Clearing Faults

Step Key(s)
  1. Press Esc to acknowledge the fault. The fault information will be removed so that you can use the HIM.
  1. Address the condition that caused the fault.
    The cause must be corrected before the fault can be cleared.
  1. After corrective action has been taken, clear the fault by one of these methods:
    • Press Stop
    • Cycle drive power
    • Set parameter 240 [Fault Clear] to "1."
    • "Clear Faults" on the HIM Diagnostic menu.

U.S. Allen-Bradley Drives Technical Support
Tel: (1) 262.512.8176,
Fax: (1) 262.512.2222,
Email: support@drives.ra.rockwell.com,
Online: www.ab.com/support/abdrives

Allen-Bradley Drives Technical Support www.ab.com/support/abdrives

www.rockwellautomation.com

Documents / Resources

References

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Allen-Bradley PowerFlex 70 - Adjustable Frequency AC Drive Quick Start Guide

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