National Instruments nuDrive 2CF-001 Скачать руководство пользователя | Manualshive

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nuDrive Accessory User Guide

22

www.ni.com

Figure 20.

Servo Amplifier Parts Locator Diagram

Warning

You can only adjust the balance while the nuDrive is powered and the amplifier

is enabled. Use extreme caution and adjust the trimpot with a plastic trimpot screwdriver
designed for the task. High voltages and currents exist within a powered nuDrive. Do not
attempt to make this adjustment unless you are qualified to do so.

Carefully adjust trimpot T2 on the servo amplifier until the motor ceases to
rotate.

Status LEDs

The amplifiers in the servo nuDrive also have three status LEDs that are
useful for troubleshooting potential amplifier faults. The amber LED
(labeled VS) indicates the presence of DC bus power and should be
illuminated whenever the nuDrive is powered on. The center red LED is the
overcurrent indicator (labeled IC) which should never be illuminated. If it
is, check the motor cabling for short circuits between the motor leads
and/or short circuits to ground at or around the motor. The third red LED is

1

Resistors

2

Trimpots

U10

U7

U8

J1

1

U1

U6

C3

C11

C12

C41

R40

R12

R1

R42

R7

R6

R11

U11

J3

1

Q1

R20

R61

U2

U9

U4

U3

T2

T1

IC

VS

U5

INH.

J2

2

1

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Содержание nuDrive 2CF-001

Страница 1: ...Safety Information 5 Installation and Connector Wiring 6 Front Panel Switches and Host Bus Interlock Circuit 6 Rear Panel Connector Wiring 7 Motor Power Terminal Blocks 7 Encoder Terminal Blocks 8 Lim...

Страница 2: ...his font also denotes text that is a placeholder for a word or value that you must supply CF nuDrive Refers to the 4CF 001 and 2CF 001 nuDrives CX nuDrive Refers to the 4CX 001 and 2CX 001 nuDrives SX...

Страница 3: ...The terminal blocks do not require any special wiring tools for installation Refer to Table 2 for a summary of how to connect various motion controllers to different nuDrives Table 1 nuDrive Properti...

Страница 4: ...t Each nuDrive is packaged in a rugged aluminum enclosure that can be used as a benchtop unit or that can be rack mounted Table 2 nuDrive Connectivity Controller Connection nuDrives All 7344 controlle...

Страница 5: ...emove equipment covers or shields unless you are trained to do so Hazardous voltages may exist even when the equipment is turned off To avoid a shock hazard do not perform procedures involving cover o...

Страница 6: ...ion controller to the nuDrive interface cable Wire the motor power limit switch encoder I O and E Stop terminal blocks as per the instructions and diagrams in this manual and or your specific system r...

Страница 7: ...onitors the presence of 5 V from the host computer and disables the nuDrive when the voltage disappears or falls out of tolerance This circuit shuts down the motors by activating the Inhibit or disabl...

Страница 8: ...tions for additional information on connecting 6 and 8 wire motors and on the alternate half coil configuration Caution Never connect unused center taps or winding terminals to pin 3 Encoder Terminal...

Страница 9: ...upply to the Common ground signal on the 8 pin encoder terminal block nuDrives have differential inputs for Phase A Phase B and Index signals You can easily accommodate encoders with various phase rel...

Страница 10: ...shaft Negative reverse counter clockwise CCW facing motor shaft Figure 6 shows the clockwise and counter clockwise motor rotation Figure 6 Clockwise and Counter Clockwise Motor Rotation When connecti...

Страница 11: ...ections CX and SX nuDrive Configuration For end of travel limit and home switch connections nuDrive axes have a separate six position removable screw terminal connector block All limit signals are fil...

Страница 12: ...r the CF nuDrive terminal block pin assignments Figure 10 Pin Assignment for the Limit Switch Terminal Block on the CF nuDrive The Limit High Speed Capture and External Inhibit signals are opto couple...

Страница 13: ...ing a separate six position terminal block with removable screws Figure 11 shows the two six position I O terminal block pin assignments Figure 11 Pin Assignments for the Two Six Position I O Terminal...

Страница 14: ...s interlock and per axis inhibit signals CX nuDrives To use the amplifier inhibit functionality of the 7344 controller set jumpers JP2 through JP5 to the Inhibit position recommended When the jumpers...

Страница 15: ...signments Figure 14 Upper I O Terminal Block Pin Assignment on the CF nuDrive Figure 15 Lower I O Terminal Block Pin Assignment on the CF nuDrive The breakpoint output digital signals are opto coupled...

Страница 16: ...nfiguration is the National Instruments default output configuration for stepper controller boards and nuDrives Optional Configurations Warning Be sure to turn off the ENABLE switch and disconnect the...

Страница 17: ...ble input Refer to Figure 17 for more information on the E Stop terminal block pin assignment Figure 17 E Stop Terminal Block Pin Assignment Note The front panel ENABLE switch will remain illuminated...

Страница 18: ...ent output relationship for periods of time greater than approximately two seconds The maximum current output corresponds to the continuous current limit Icont so command voltages that would result in...

Страница 19: ...er as a torque current block Configure the current gain on the nuDrive so that the value of the maximum command voltage when multiplied by the gain results in the value of the maximum allowable peak c...

Страница 20: ...e that would correspond to a gain of 1 0 and therefore a maximum output current of 10 A Use the closest resistor value below the value you calculate for R40 and R42 to ensure that your current limits...

Страница 21: ...im the leads to the proper length bend them at 90 and plug them into the sockets Balancing the Amplifier Gain The balance DC offset of the amplifier is trimmed to zero at the factory If you change the...

Страница 22: ...the motor ceases to rotate Status LEDs The amplifiers in the servo nuDrive also have three status LEDs that are useful for troubleshooting potential amplifier faults The amber LED labeled VS indicates...

Страница 23: ...settings are 10 times microstepping 2 000 steps rev with standard 1 8 stepper motors and current limits set to approximately 1 A RMS 1 4 A peak per phase All microstep drivers in the nuDrive have an...

Страница 24: ...the value of RCL by where RCL represents the current limit resistor value in ohms and IRMS represents the output current as an RMS value Calculate the value for RCR by where RCR represents the current...

Страница 25: ...ble 4 Output Current versus RCL Value Output Current per Phase RCL Value 5 1 4 W RMS Peak 0 26 A 0 36 A 180 minimum value 0 31 A 0 44 A 220 0 38 A 0 54 A 270 0 47 A 0 66 A 330 0 55 A 0 78 A 390 0 65 A...

Страница 26: ...with all configurations of two phase stepper motors Note The stepper nuDrive is not compatible with five lead unipolar stepper motors or five phase stepper motors the stepper nuDrive is only compatib...

Страница 27: ...e 23 produces the most torque per amp but has the disadvantage of higher inductance and poorer high speed performance Figure 23 Series Stepper Motor Wiring Higher Torque Lower Speed Alternatively 8 wi...

Страница 28: ...Figure 25 This configuration sacrifices low speed torque for better high speed performance With this configuration it is typically not possible to produce the rated torque of the motor without the ris...

Страница 29: ...signal pass through This means the nuDrive may have passive filtering on these signals but will not affect the voltage range or current handling capability Consult your motion controller specification...

Страница 30: ...nterface Each Axis Inputs Quadrature incremental Differential input threshold 0 3 V typical Single ended input threshold TTL CMOS Voltage range 0 to 5 VDC Noise filter RC time constant 100 ns Max quad...

Страница 31: ...ating temperature 0 to 45 C 32 to 113 F Storage temperature 20 to 70 C 4 to 158 F Humidity 10 to 90 noncondensing Power Supply Input voltage 115 VAC 15 50 60 Hz Input Fuse 24 VDC units F5 5 A 5 20 mm...

Страница 32: ......

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