COOLMAY CV556C 2-Phase Full Digital Stepping Motor User Manual

COOLMAY CV556C 2-Phase Full Digital Stepping Motor

COOLMAY 2-PHASE FULL DIGITAL STEPPING MOTOR

CV556C is a new type of stepper drive developed by Coolmay company according to the market demand.It adopts the advanced 32-bit DSP chip which is special for motor controlling. CV556C can make a stepper motor run more smoothly and it is not easy to lose steps. Moreover, it can receive input signal pulses, direction signal and enable input signal. When internal position is used, the pulse and direction interface can be used for sensor signal input and accept 485 controlling. CV556C can make the motor create smallest heat and vibration, while the machining speed and precision of the mechanical operation are better improved. The drive voltage ranges from 20V to 50VDC.It is designed for using with 2-phase hybrid stepper motors of all kinds with 42mm to 60mm outside diameter, regulated phase current under 4.0A.

Feature

• 2 kinds of motion mode: position mode and speed mode decided by the DIP switch SW4.
• 16 channels micro steps with equal angle and constant torque. Highest micro step: 40000ppr.
• Highest response frequency: 200Kpps.
• The coil current will be reduced by approximately 50% when no step pulse is received for 1.5 seconds.
• Opto-isolated signal I/O.
• Drive current is adjustable in 8 channels from 1.0A/phase to 4.0A/phase.
• Single power supply from 20V to 50VDC.
• Better to overcome the problem of low frequency vibration
• Dimension : 118×24.3×75.5mm3; Net Weight : 0.2Kg

Current Setting

Stepper drive working current is set by DIP switches SW1 to SW3. Peak current=working current*1.4

Working Current (A)|

Default

| 1.2| 1.5| 2.0| 2.5| 3.0| 3.5| 4.0
---|---|---|---|---|---|---|---|---
Peak Current (A| 1.7| 2.1| 2.8| 3.5| 4.2| 4.9| 5.6
SW1| ON| OFF| ON| OFF| ON| OFF| ON| OFF
SW2| ON| ON| OFF| OFF| ON| ON| OFF| OFF
SW3| ON| ON| ON| ON| OFF| OFF| OFF| OFF

Microstep Setting/ I/O Mode Setting

Microstep setting or I/O mode setting is controlled by SW4. If SW4=OFF, it is microstep setting mode.
If SW4=ON, it is I/O mode. Mircrosteps and speed are set by DIP switches SW5 to SW8, 16 channels in total.

Caution

1. The supply voltage shouldn’t exceed 50VDC.
2. Input pulse signal is effective with the falling edge.
3. Alarm indicator ALM lights and the driver stops working when the drive temperature is over 80℃. It restarts working until the temperature falls to 50℃ after repowering on. A heat device is needed when overheat occurs.
4. Alarm indicator ALM lights when over current (short of load) occurs. Please check motor’s connection and other shorts and turn the power supply on after removing the trouble.
5. Alarm indicator ALM lights when no motor is connected or motor connection is poor. Please check motor connection and turn the power supply on after removing the trouble.

Terminal Function Introduction

Signal                            Function Remark

PU+| Positive of opto-isolated signal| Connect to +5V signal power supply. For 24V input signal,

please switch to connect HSC terminal .

PU-

|

Step pulse signal

| With the falling edge of the signal PU, the motor executes an angular step. The input resistance is 220Ω. Low voltage

0-0.5V, high voltage 4-5V, pulse width>2.5μS.

DR+| Positive of opto-isolated signal| Connect to +5V signal power supply. For 24V input signal,

please switch to connect HSC terminal .

DR-

|

Direction signal

| To change the motor rotate direction. Input resistance is

220Ω. Low voltage 0-0.5V, high voltage 4-5V, pulse width>2.5μS.

MF+| Positive of opto-isolated signal| Connect to +5V signal power supply. For 24V input signal,

please switch to connect HSC terminal .

MF-

|

Motor free signal

| After turning off the motor working current when it is effective (low level), the drive will stop working and the motor

is free.

COM24V HSC

|

Common 24V terminal

| COM 24V is common negative and positive 24V input terminal. When input 24V pulse signal with the common positive connection method, please connect 24V+ signal to COM 24V and 24V- to PU- terminal. For common negative connection method, please connect 24V+ signal to PU+

terminal and 24V- signal to COM 24V terminal.

V-| Negative power supply| DC20V~50V
V+| Positive power supply
A+| Motor connection|
A-
B+
B-
A| A phase signal for 485

communication

|
B| B phase signal for 485

communication

GND| Ground

Functions Of Input And Output Terminals

In pulse mode, the pulse port and direction port can only receive pulse signal. In I/O mode, the pulse port acts as input port 1 and the direction port as input port 2. Input port 1 f defines speed control signal input 1, and input port 2 defines speed control signal input 2, input port 3 defines enable signal input as default.

DI Function Introduction

receive the negative

limit signal.

2| POSLIMIT| Forward Limit Signal| In returning to zero mode, it is used to receive the forward

limit signal.

3| ORIGIN| Origin signal| In returning to zero mode, it is used to receive the origin

signal.

4

| ****

SON

| ****

Enable signal

| For drive enable control: OFF：Drive enabled.

ON：Drive diseabled.

5| SPDSIGNAL1| Speed control signal

1

| It is used for the input of control signal 1 of the IO port in

speed mode.

6| SPDSIGNAL2| Speed control signal

2

| It is used for the input of control signal 2 of the IO port in

speed mode.

7

| ****

STOPSIGNAL

| ****

Stop signal

| It is used in internal position mode:

1.    When returning to zero, to stop returning to zero and complete it.

2.    When the position is planned, to stop the displacement

and clear the unfinished instruction.

8| POSIO1| Sart signal for

Internal position 1

| Start the internal position 1 through the I/O port 1 with rising

edge,and the internal position 1 is set by the PA51 and PA52.

9| POSIO2| Sart signal for

Internal position 2

| Start the internal position 1 through the I/O port 2 with rising

edge,and the internal position 2 is set by the PA16 and PA17.

10| HOMESTART| Start homing signal| In internal position mode, this port receives the back zero

signal with the rising edge.

11

| ****

HALTSIGNAL

| ****

Suspended signal

| 1.  For internal position mode: when the position planning is carried out, it will suspend the displacement, and at the next coming start signal, it would finish the rest of the trip with the rise edge.

2.  For speed mode: after setting themotor speed, as long as the input port is valid, the motor will decelerate and stop working. If it is invalid, the motor will continue to run at the setting speed.

12

| ****

POSROUNDIO3

| Start signal for Internal second

position

| Start the internal position 1 and position 2 through the I/O port. The internal position 1 is started with the rising edge ,while the internal position 2 is started with the falling edge.

13

| ****

SPDSELECT

| ****

Speed selection

| When in IO speed mode, set PA61 to 2 and it works in the speed of PA41. While the input port level is reversed, it

works in the speed of PA42.

Drive Wiring Connection Diagram

• 5V Signal Connection
• 24V Signal Connection

Connection Diagram Between The Drive And PC

Note:

1. The cable that the driver is used to connect with a PC machine or STU debugger must be a dedicated cable, please confirm before using to avoid damage.
2. Please use a isolated power supply to the drive when it is connected to a PC machine.

Internal Running Mode

ModBus Internal Position And Speed Control Instruction

1. When SW4=OFF，the drive is in pulse mode and it will work by the subdivisions. For example, if the subdivision is set to 1000, the drive will receive 1000 pulses to rotate a revolution.
2. When SW4=ON and PA28=1, it is internal postion mode. While PA28=2, it is internal speed mode.

I/O Speed Instruction

In external pulse mode, the I/O terminal is as normal pulse and direction functions.
In speed mode : PA61=0, I/O control function is not enabled. When PA61=1,I/O control function is enabled.

When PA28=2, it is speed mode and the motor rotate at the presetting speed , and PA61 makes I/O terminal signal control effective. If PA63=0, PU terminal is starting and stopping signal. Then 5V signal connected starts working, and if 5V disconnected stops working. DR terminal is direction signal. Then if 5V signal is connected, it starts working. And if 5V signal is disconnected , it reverses direction. If PA63=1, PU terminal is CW signal. Then 5V signal connected controls starting working, while 5V disconnected controls stopping. DR terminal is CCW signal. Then if 5V signal is connected, it reverses direction, while 5V signal disconnected stops working. If both of PU and DR connect 5V signal, the motor can only rotate in CW direction.

Parameter Adjustment Software

The drive can communicate with the computer through 485 interface. But a USB to 485 transfer tool is necessary.
Please check the identified serial port number in the computer device manager. Then open the software and select the corresponding serial port. Click “connection the driver” button and there would show that the driver has been connected and the it is online in the lower left corner of the software status bar.
Click the “edit parameter button” in the toolbar and open the parameter list and then click the read button to read out parameters in the list.
Then to set parameters that you need to set. Please remember to press Enter key in the keyboard after each parameter was modified.

When all parameters are finished editing, please click write button and then they will be effective.

Note: After openning the parameter list, please click read button firstly and then edit parameters.

Set SW4=ON to enter into the internal mode and set PA28 to 1 to enter into the internal position mode. Or set PA28 to 2 and PA61 to 0 entering into 485 control speed mode. Please power the drive off and then power it up. Click the point debugging button on the toolbar. After that, it will enter into 485 control point mode. Be aware that before returning to zero and starting position, please press “control to make clearing” button, and the corresponding function has the control word corresponding bit 0->1 change when starting.

Parameter List

No.| Name| Function| Range| Default

Value

---|---|---|---|---
PA00| Current loop ratio| Current loop ratio.| 1000–9000| 2000
PA-01| Current loop integral| Current loop integral.| 10–100| 25
PA-04| The filter coefficient of

instruction pulses

| The smooth filter of input instruction

pulses.

| 1–2048| 128
PA-08| Working current| When all current switches are ON, PA08

can be set as working current,unit: A.

| 0-1| 1
PA-11| Effective pulse edge| 0: Rising edge. 1: Falling edge.| 0-1| 0

PA-12

| ****

Electronic gear ratio numerator

| It can be used by gear ratio numerator and denominator to achieve any cycle of pulse number. For example: to set the subdivision=1000, if it requires 1314 pulses to rotate a round. Please set the gear ratio numerator as 1000 and the denominator as 1314. Then it can realize that when the controller sends 1314

pulses, the motor rotates a circle.

| ****

1–9999

| ****

1

PA-13| Electronic gear ratio

denominator

| The same as above.| 1–9999| 1
PA-14| Input pulse mode

selection

| 0: Double pulses mode;

1: Pulse+direction mode.

| 0-1| 1
PA-15| Motor rotation direction| 0: CW direction. 1: CCW direction.| 0-1| 0
PA-16| Circle number of internal

position 2

| To set rotating

position IO2.

| rounds| by| internal| -9999-9999| -10

PA-17

| Number of in-round pulses in internal position 2| For example: if it needs to walk 10.5

rounds, and the subdivision is 4000, please set PA16=10, PA17=2000.

| ****

-9999-9999

| ****

0

PA-18| Software version| Software version.| |
PA-19| Lock current| When the drive stops receiving external pulses, the lock current can set    and    it    is    as    percentage of operating current. For example, if your| 1-100| 50
| | operating current is 3A and you set PA19=30%, then the drive current is

0.9A when the drive doesn’t work.

| |
---|---|---|---|---
PA-20| –| –| –| 0
PA-28| Working mode selection| 1: Internal position mode.

2: Internal speed mode.

| 1-2| 2
PA-29| ModBus slave address| It is used to set Modbus 485 communication address. If it needs to set communication address through 485, please firstly set slave address to 255 before connecting the drive with the PC in the software as picture showing:

| 1-255| 1
PA-30| ModBus baud rate| 96 as default and baud rate is 9600. Only 96,144,192,384,560,1152,1280

baud rate settings are supported.

| 3-1152| 96

PA-31

| ****

ModBus odd-even check

| 0: No checking.

1: Odd checking.

2: Even checking.

| ****

0-2

| ****

0

PA-33| Modbus word length| If PA31 is changed to 1 or 2, PA33 must be changed to 9. And before connecting the drive with PC, please choose odd or even which you set in the software:

| 8-9| 8
PA-34| Modbus stop bit| | 1-2| 1
PA-35| Restore default

parameters

| Set this value to 356 to restore default parameters.| 0-10000| 0
PA-37| Current gain velocity| | 0-2000| 250
---|---|---|---|---
PA-38| Current gain coefficient| | 0-20| 7

PA-40

| ****

Voltage and current gain

| 0: The maximum current gain is associated with the voltage.

1: Not associated.

| ****

0-1

| ****

0

PA-41| Speed 1 controlled by DIP

switches

| The first speed in the speed mode.| 1-1000| 10
PA-42| Speed 2 controlled by DIP

switches

| The second speed in the speed mode.| 1-1000| 20

PA-43

| ****

Function number of input port 1

| It is pulse input port as default. When it is set as internal speed and internal position, it can be matched with the corresponding function input definition and 5 is speed control signal 1 as

default.

| ****

0-99

| ****

5

PA-44

| ****

Function number of input port 2

| It is pulse input port as default. When it is set as internal speed and internal position, it can be matched with the corresponding function input definition and 6 is speed control signal 2 as

default.

| ****

0-99

| ****

6

PA-45

| Function number of input port 3| The function is set to the corresponding fuction input. 4 is the

function of enable signal as default.

| ****

0-99

| ****

4

PA-48

| Reverse the effective level of the input port| All are set to 0 for 3 inputs for conduction valid and all are set to 7 for

non-conduction.

| ****

0-7

| ****

0

PA-50

| ****

Control word

| The parameter is used to control the homing start in internal position mode and for start/stop functions. When it

powers off, the function is disabled.

| ****

0-8

| ****

0

PA-51| Rotating rounds in

internal position

| To set rotating rounds by internal

position IO1.

| 0-10000| 10

PA-52

| ****

Number of internal pulses

| For example: if it needs to walk 10.5 rounds, and the subdivision is 4000,

please set PA51=10, PA52=2000.

| ****

0-10000

| ****

2000

PA-53

| ****

Running speed

| 1.     The fastest speed can be set in internal position mode.

2.     The motor speed can be set in 485 controlling speed mode, unit : r/min. 3.If PA53=0, the motor stops running. If

PA53＞0, the motor runs with CCW

direction, while PA53＜0,the motor runs with CW direction.

| ****

-1500-1500

| ****

500

PA-54| Acceleration time| The  required  time  from  speed  0   to

rated    speed   when    setting   stroke

| 0-10000| 5000
| | position in internal position mode.

The required time from speed 0 to rated speed or from rated speed to speed 0 when in speed control mode

or homing mode, unit:ms.

| |
---|---|---|---|---

PA-55

| ****

Deceleration time

| The required time to slow down from rated speed to speed 0 when setting stroke position in internal position

mode,unit: ms.

| ****

0-10000

| ****

5000

PA-57| Absolute/relative patterns| 0: Absolute position.

1: Relative position.

| 0-1| 1

PA-58

| ****

Rated speed

| The acceleration can be set coordinating with PA54 and PA55 in position mode.

The acceleration and deceleration can

be set coordinating with PA54.

| ****

0-1500

| ****

1000

PA-59| Homing in high speed| Find high speed for the limit switch.| 0-1000| 60
PA-60| Back to zero in low speed| The speed value at low speed running

in homing mode.Unit：r/min

| 0-1000| 10
PA-61| I/O port controls enable in

speed mode

| 0: Internal speed control .

1: Speed controlled by DIP switches.

| 0-1| 1

PA-63

| ****

Action selection in speed mode

| 0: PU and DR terminals for start / stop and CW/CCW function .

1: PU and DR terminals for CW/CCW

function.

| ****

0-1

| ****

0

PA-65

| ****

Filtering time of input port

| To filter the jitter of input terminals. The value is bigger, the anti- jamming performance is better, but the

responsed speed is slower.

| ****

0-1

| ****

0

PA-66

| ****

Homing Mode

| 17: negative limit sensor; 18: positive limit sensor;

23: positive limit and original sensor; 27:negative limit and original sensor; 35: clear current position value and homing can be completed without

sensor signal.

| ****

0-100

| ****

17

Remark: The parameters will be effective after repowering on.

Alarm Code

When it occurs alarming, the driver is offline and the corresponding error code is displayed. Please check the error table to clear the problem. After clearing the failure, the driver can work normally after repowering on.

Treatment

2.    Main Control Chip.

3.    Circuit board failure.

| 1.   Check whether the motor wire is wrong.

2.    Check whether the motor is damaged.

3.    Motor and driver mismatch.

4.    Replace drive.

02

| ****

Over voltage alarm

| 1.     Circuit board failure

2.     Overpowering

3.     Power supply voltage waveform is abnormal.

| 1.  Check power supply.

2.   Too much motor load. 3.Replace drive.

03| Over heating alarm| 1.    Circuit board failure.

2.   The drive is overheat.

| 1.    Reduce drive heat

2.       Replace drive

Note: This version manual is applicable to software version No.29. If there is any modification, please refer to the function supported by the actual software.

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References

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