CENTENT CN0165 Manuel utilisateur

CN0165

OPERATING MANUAL

HIGH RESOLUTION MICROSTEP DRIVE

3879 SOUTH MAIN STREET 714-979-6491

SANTAANA, CALIFORNIA 92707-5710 U.S.A.

0 M P A N Y

This manual contains information for installing and operating the following

Centent Company product:

CN0165 Microstep Drive

Centent and the Centent Company logo are trademarks of Centent Company.

Other trademarks, tradenames, and service marks owned or registered by any other

company and used in this manual are the property of their respective companies.

3879 South Main Street

Santa Ana, CA 97207

GENERAL DESCRIPTION...............................................................................1

LOCATION OF COMPONENTS......................................................................2

INSTALLATION

Heat Sinking .................................................................................................3

Power Supply................................................................................................4

Motor lead color codes................................................................................. 8

Fault/Reset....................................................................................................9

Direction.....................................................................................................10

Step Pulse ...................................................................................................10

+5 VDC ......................................................................................................10

Current Set..................................................................................................11

Current Set Table........................................................................................13

Option Header............................................................................................ 14

OPERATION

Standby Current Trimpot............................................................................ 15

Offset Trimpot.............................................................................................15

Fault Led ....................................................................................................16

Power-On Reset.......................................................................................... 16

Under-Voltage Lockout ..............................................................................16

PERFORMANCE

Microstepping............................................................................................. 16

Anti-resonance............................................................................................17

Torque and Power......................................................................................18

Motor Winding Configuration....................................................................19

Power Supply Voltage ................................................................................22

Power Supply Current................................................................................22

Motor and Drive Heating ...........................................................................23

ACCURACY

Motor Tolerances .......................................................................................23

Motor Load.................................................................................................24

Motor Linearity...........................................................................................24

Current Profile Option ...............................................................................25

SPEED-TORQUE CURVES............................................................................25

FULL SCALE DRAWING ...............................................................................40

SPECIFICATIONS ..........................................................................................41

INDEX...............................................................................................................42

GENERAL DESCRIPTION

The Centent CN0165 is a high resolution step motor drive designed for the operation of

hybrid PM step motors rated from 0.1 to 20 amps per phase. The CN0165 operates on a

supply voltage of 18-80 volts DC. Drive output current ranges from 0.1 to 10 amps per

phase. Maximum step input frequency is 1.5 MHz. The minimum on or off time for the

step input is 300 nanoseconds. Motor winding inductance as low as 0.5 millihenrys is

permitted.

The CN0165 features eight selectable microstep resolutions per drive. Available

resolutions range from full-step to 256 microsteps per full step. The step resolution is

selected by jumpering the option header located on the face of the drive.

The CN0165 is capable of delivering up to 1.5 million microsteps per second to the step

motor. The pin-out of the CN0165 is compatible with other Centent step motor drives.

The design of the CN0165 is a combination of recirculating current and non-recirculating

current type chopper drives. It features electronic viscous damping for control of motor

mid-band instability (anti--resonance) and a high-speed torque boost circuit. MOSFET

transistors are utilized in the 'H' bridge output circuit. Automatic current standby, easily

adjustable from zero to full current, reduces motor phase current while the motor is at

rest. The combination of these features results in an extremely efficient step motor drive

with minimum motor iron losses (heating).

The CN0165 uses high speed opto-isolators for the Step Pulse and the Direction inputs to

provide maximum noise immunity. The Step Pulse and Direction inputs are compatible

with TTL drivers and require no additional components.

Motor stepping occurs on the high to low transition of the Step Pulse Input. The

Direction Input hold time is one microsecond after the active edge of the Step Pulse

Input. The Direction Input can be updated simultaneously with the active transition of the

Step Pulse Input.

Over-current conditions like winding shorts, overheating conditions such as insufficient

heat sinking, and under-voltage conditions like power supply failure are sensed by the

CN0165. When any of these conditions occur the CN0165 shuts down, activating the

Fault Output and lighting the Fault LED located on the face of the drive.

The Centent CN0165 High Resolution Microstep Drive is compact; measuring 4.75

inches x 4.00 inches x 0.85 inches (121mm x 102mm x 22mm). It comes encapsulated in

a heat conductive epoxy and encased in an anodized aluminum cover. This results in a

rugged package that resists abuse and contamination, suitable for harsh environments.

CENTENT CN0165 MICROSTEP DRIVE

LOCATION OF COMPONENTS

(1) MOUNTING PLATE

The base plate also serves as a heat sink, although additional heat sinking may be

required. The temperature of the drive must never exceed +70°C (+158°F). Four

mounting holes on 3.625 inch (92 mm) centers are provided to secure the drive to the

heat sink or the user’s equipment.

(2) OPTION HEADER

A six pin header selects the active

microstep resolution or current profile.

The user jumpers the desired pins with the

shorting bars supplied with the drive.

Eight resolutions or current profiles are

available in each drive. The value for each

selection is printed in the Resolution

Table (see Page X14X). There are 21

microstep resolutions available for the

CN0165 Microstep Drive.

Figure 1 - Component location

(3) FAULT LED

This light emitting diode turns on when the CN0165 is in a fault mode. The fault status is

also available on the Fault/Reset Terminal of the connector (see page X9X). A fault

condition is cleared by shorting the Fault/Reset Terminal to ground potential or by

recycling the power supply (power off, power on).

(4) TERMINAL CONNECTOR

A 12 position terminal strip provides the connections for the power supply, the motor, the

Current Set and the indexer interface (Step Pulse and Direction inputs). Care must be

taken not to over-torque the terminal screws to prevent damage to the connector.

(5) RESOLUTION TABLE

The Resolution Table provides a diagram of each Option Header configuration, and the

resolution associated with it. A maximum of eight of the twenty-one possible step

resolutions are available in each CN0165.

(6) CURRENT SET TABLE

This table provides the user with standard 5% values for the Current Set Resistor

connected between terminals 11 and 12 of the Terminal Connector.Values are given for

Parallel and Series operation from 0.25 to 20 amps per phase.

(7) OFFSET TRIMPOT

This is a fine-tuning adjustment for high microstep resolutions. It is used to optimize

operation at resolutions of sixteen microsteps or greater.

(8) STANDBY TRIMPOT

This trimpot sets the current level of the CN0165 during periods of motor inactivity.

Standby current may be set from 0% to 100% of operating current.

INSTALLATION

SECURING AND WIRING THE DRIVE

The mounting holes in the corners of the drive provide the means of mounting the drive

to the system chassis or bulkhead. It is desirable to mount the drive close to the motor

and to make the motor phase wiring as short as possible. This will help to minimize

noise generated from this source. Although the drive is impervious to dirt and grease,

the connector must be protected from contamination.

A major factor in choosing the mounting location is heat sinking. An aluminum chassis

will extract heat from the drive while a steel one will not. Dirty or painted surfaces are

poor heat conductors. Clean the mating surfaces between drive and chassis before

assembly. Use of a commercial transistor heat sink compound enhances the dissipation

of heat from the CN0165 drive.

The protection provided by the internal temperature sensor of the CN0165 is not

designed as a substitute for adequate heat sinking. Repeatedly tripping the Fault Output

by allowing the drive to overheat causes thermal stress that will eventually lead to

permanent damage.

If this occurs it will be necessary to provide additional heat sinking. As a practical

guide, additional heat sinking will be necessary for the CN0165 if it is operated at three

amps or more. A fan to force air circulation through the heat sink may also be required.

The optional HSK heat sink kit for Centent drives consists of heat sink, side rails and

screws to secure the drive and side rails. The side rails are reversible, allowing the two

mounting configurations shown in XFigure 2X. Contact Centent Company to order the

HSK heat sink kit.

Figure 2 - HSK heat sink kit

No additional connectors are required when wiring to the Terminal Connector of the

CN0165. Either stranded or solid conductor wire may be used. A wire size of 16-22

gauge is recommended. The insulation should be stripped back 0.25 inches (7 mm) for

insertion into the terminal block. Care must be taken when tightening the screws in the

terminal block. Use a torque limiting driver if possible, to avoid damage to the

terminals.

CAUTION: DO NOT OVER-TORQUE THE TERMINAL CONNECTOR

SCREWS. MAXIMUM TORQUE ON THE TERMINALS IS 4.5 LB. - IN.

CENTENT CN0165 MICROSTEP DRIVE

POWER SUPPLY INPUTS

Terminal 2 connects to the positive output from the power supply. The voltage range is

+18 to +80 VDC. The power supply may be unregulated. Limit the ripple voltage

(unregulated supplies) to a maximum of 10% of the DC output voltage. Terminal 1 is

the ground connection. Do not use Terminal 12 for power supply ground; it is the return

connection for the Current Set resistor.

For those users that wish to build their own power supply, XFigure 3Xshows a suggested

circuit. Because of the electrical noise generated by these drives, it is not recommended

that the supply be shared with low level logic circuitry.

Figure 3 - Power Supply

The power supply terminals should have a capacitor of 470µf or greater

connected across them. This is particularly important for regulated power

supplies since they usually have little output capacitance. Locate the

capacitor as close to Terminals 1 & 2 of the CN0165 as possible (see

XFigure 3X, C2). Be sure the voltage rating for the capacitor is higher than

the drive’s supply voltage.

During rapid deceleration of large inertial loads from high speeds, step motors become

generators of considerable electrical power. This is returned to the power supply by the

step motor drive. If the supply cannot absorb this power, the voltage generated may

exceed the 80 volt limit of the CN0165, thus damaging the drive and power supply.

To protect the drive and power supply, the user may connect an external zener diode

from Terminal 2 to ground (see XFigure 3X, D5). This diode will protect the drive from

over-voltage conditions. Recommended diodes are 1N4762 (one watt) or 1N5375 (five

watt). Note the 7-10 amp fuse (F1) placed in series with Terminal 2 and the power

supply. Be sure this fuse is located between the power supply and the zener diode. In

case of an over-voltage condition, the zener diode and fuse may be destroyed, but the

CN0165 and the power supply will be protected from damage.

The power supply current required depends on the motor being used and whether the

configuration is for parallel or series operation. See Motor Winding Configuration in

the Performance section of this manual on page X19Xfor a complete explanation of motor

wiring options.

INSTALLATION

Parallel operation requires a maximum of

two thirds of the motor's rated per phase

current.

Series operation requires a maximum of one

third the motor's rated per phase current.

Use the manufacturer's phase current rating for the motor and the motor wiring

configuration (high or low performance) to estimate the size of power supply required.

As an example, a six lead motor rated by the manufacturer at four amps per phase is

connected in the full winding (series) configuration. To calculate the current required

from the power supply use Equation 2. Assume a transformer with a 25 volt RMS

secondary is used. After rectification the transformer will produce a 37 VDC power

supply voltage. To calculate the size of the filter capacitor (C1) use the following

equation:

()()

(

)

(

)

CSUPPLY

SUPPLY

μμ

300048.2995

37 33.1333,83333,83

1≈===

Equation 3 - Power Supply filter capacitor

C2 (XFigure 3X, page X4X) is the 470 µf capacitor located close to the CN0165’s power

supply terminals. C1may be made smaller by that amount if desired. Both capacitors

must have a voltage rating safely in excess of the power supply voltage, 50 VDC in this

example.

More than one CN0165 may be run from a common power supply if the filter capacitor

is large enough to handle the combined load of the drives. Each CN0165 must have

separate power leads to the supply. Do not daisy-chain power leads from supply to

driver to driver.

ISUPPLY = 2/3 x IPHASE

Equation 1 - Drive Current (Parallel)

ISUPPLY = 1/3 x IPHASE

Equation 2 - Drive Current (Series)

CENTENT CN0165 MICROSTEP DRIVE

MOTOR PHASE OUTPUTS

These are the drive’s

outputs to the step motor

phase windings. One motor

winding pair goes to

Terminals 3 & 4 and the

other motor winding pair

goes to Terminals 5 & 6.

The CN0165 is designed to drive four, six and eight lead step motors. With six or eight

lead motors, there are two options for connecting the motor to the drive. They are Series

and Parallel, as shown in XFigure 4Xand XFigure 5X.

Figure 4 - Parallel configuration

Figure 5 - Series configuration

Since a four lead motor has only one possible wiring configuration, consider it to be

connected in the Parallel configuration. See Motor Winding Configuration in the

Performance section of this manual (page X19X) to determine the best wiring configuration

for the application.

The CN0165 is a high frequency switching type drive. Because of the rapid rate of

voltage and current change inherent with this type of drive, considerable RFI is

generated. The following precautions will prevent noise from coupling back to the

inputs and causing erratic operation.

n.c.

6 LEAD

MOTOR

PHASE A

PHASE C

PHASE B

PHASE D

8 LEAD

MOTOR

PHASE A

PHASE C

PHASE B

PHASE D

n.c.

6 LEAD

MOTOR

PHASE A

PHASE C

PHASE B

PHASE D

8 LEAD

MOTOR

PHASE A

PHASE C

PHASE B

PHASE D

Table des matières

Autres manuels CENTENT Entraînement CC

CENTENT

CENTENT CN0124 Manuel utilisateur

CENTENT

CENTENT CN0162 Manuel utilisateur

Manuels Entraînement CC populaires d'autres marques

Vincent Associates

Vincent Associates UNIBLITZ ED12DSS Manuel utilisateur

EKSMA OPTICS

EKSMA OPTICS DQ-100-4 Manuel de la liste des pièces

Chamberlain Garog

Chamberlain Garog D Series Manuel utilisateur

Parker

Parker PDS Series Manuel utilisateur

Festo

Festo DGC G Series Guide de configuration

Binks

Binks QS-5012-1-CE Manuel utilisateur

Danfoss

Danfoss VLT 2800 Series Fiche technique

ABB

ABB ACQ580-01 Series Manuel d'installation

YASKAWA

YASKAWA CANopen SI-S3 Manuel utilisateur

GE D20A6 Manuel utilisateur

Unex

Unex MC-D-250-1000-050W-TW Manuel utilisateur

Geckodrive

Geckodrive G213V Manuel utilisateur

ABB

ABB RSYC-01 Manuel utilisateur

Rockwell Automation

Rockwell Automation PowerFlex 700S Manuel du propriétaire

WEG

WEG DeviceNet CFW500 Manuel utilisateur

Siemens

Siemens SINAMICS G Fiche technique

Siemens

Siemens SINAMICS SM150 6SL3815-7NP41-0AA1 Mode d'emploi

SOMFY

SOMFY JR RU 30 Manuel utilisateur