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EM556S Digital Stepper Drive User Manual

Page | 12

11.

Protection Functions

EM556S incorporates are built with over-voltage and over-current error protections. When it is under error

protection, the red LED light will blink for one or two times in a period of 3 seconds. If fault output connection is

connected, the impedance mode between ALM+ and ALM- will be changed (See “Fault Output Configuration”

section for detail).

Priority

Time(s) of

Blink

Sequence wave of red LED

Description

Over-current protection activated when peak

current exceeds the limit.

Over-voltage protection activated when drive

working voltage is greater than 60VDC

Figure 14

Error Protections

When above protections are active, the motor shaft will be free or the red LED blinks. Reset the drive by repowering it

to make it function properly after removing above problems.

Содержание EM556S

Страница 2: ...g or otherwise without approval from Leadshine While every precaution has been taken in the preparation of the book Leadshine assumes no responsibility for errors or omissions Neither is any liability assumed for damages resulting from the use of the information contained herein This document is proprietary information of Leadshine that is furnished for customer use ONLY Information in this docume...

Страница 3: ...Motor Connection 5 5 2 6 lead Motor Connection 6 5 3 8 lead Motor Connection 6 5 3 1 Series Connection 6 5 3 2 Parallel Connection 6 6 Power Supply Selection 7 6 1 Regulated or Unregulated Power Supply 7 6 2 Power Supply Sharing 7 6 3 Selecting Supply Voltage 7 7 DIP Switch Configurations 7 7 1 Output Current Configuration SW1 3 8 7 2 Idle Current Configuration SW4 8 7 3 Micro Step Configuration S...

Страница 4: ...EM556S Digital Stepper Drive User Manual 11 Protection Functions 12 12 Troubleshooting 13 13 Warranty 14 14 Contact Us 15 ...

Страница 5: ...f NEMA 23 and 24 stepper motors 1 1 Features Step direction PUL DIR or CW CCW double pulse control 20 50VDC supply voltage 200 KHz max pulse input frequency 16 micro step resolutions of 200 25 600 via DIP switches 8 output current settings of 1 8 5 6A via DIP Switches Configurable control command smoothing for performance excellence Automatic idle current reduction to 50 or 90 Convenient self test...

Страница 6: ...ion setup 5 0 μS Isolation resistance 500 MΩ 2 2 Environment Cooling Natural Cooling or Forced cooling Operating Environment Environment Avoid dust oil fog and corrosive gases Ambient Temperature 0 65 C 32 149 F Humidity 40 90 RH Operating Temperature 0 50 C 32 122 F Vibration 10 50Hz 0 15mm Storage Temperature 20 C 65 C 4 F 149 F Weight Approx 250g 8 8 oz 2 3 Mechanical Specifications unit mm 1in...

Страница 7: ...e pulse step direction control mode this input signal represents a pulse which is active at the rising or falling voltage edge set by DIP switch SW13 in double pulse CW CCW control mode this input signal represents clockwise CW pulse which is active at both high voltage level and low voltage level PUL DIR Direction Connection Required 1 5 24V optically isolated differential 2 Maximum 200 KHz input...

Страница 8: ... or any P1 P2 P4 terminal block to avoid drive damage or injury while powered on 3 3 P4 Motor Connector PIN Details A Connect to motor A wire A Connect to motor A wire B Connect to motor B wire B Connect to motor B wire 3 5 Status LED Lights There are two LED lights for EM556S The GREEN one is the power indicator which should be always on in normal circumstance The RED one is a drive status indica...

Страница 9: ... optional and it can be connected either in sinking or sourcing ALM EM556S ALM Load 5 24VDC ALM EM556S ALM Load 5 24VDC Figure 5 Sinking output Figure 6 Sourcing output 5 Stepper Motor Connections EM556S can drive 2 phase and 4 phase bipolar hybrid stepper motors with 4 6 or 8 wires Although setting the output current to 1 4 times of motor phase current will get maximum torque from the motor at th...

Страница 10: ...tors under series connection has the most inductance the performance will start to degrade when the motor runs at higher speed For this connection it is suggested to set an EM556S s output RMA current to no more than 70 of the stepper motor s phase current to prevent overheating See the next figure for how to connect an 8 lead stepper motor for series connection P4 Figure 10 8 lead motor series co...

Страница 11: ...www leadshine com ProductSubType aspx subtype regulated switching power supplies In the case when only general purpose switching power supplies are available choose one with OVERSIZED current output rating for example using a 4A power supply for 3A stepper motor to avoid current clamp On the other hand if unregulated supply is used one may use a power supply of lower current rating than that of mo...

Страница 12: ...g inductance and resistance it is therefore important to set drive output current depending on motor phase current motor leads and connection methods Phase current rating supplied by motor manufacturer is important in selecting drive current however the selection also depends on leads and connections The first three bits SW1 2 3 of the DIP switch are used to set the dynamic current Select a settin...

Страница 13: ...hing to eliminate noise input pulse from the pulse generator controller PLC etc and therefore improve motion smoothness and high speed start frequency in many circumstances This is achieved through adding filtering time which is configured SW 9 10 See the following table for how to configure In multi axis applications make sure to set the Filter Time value of each EM556S to the same Filter Time SW...

Страница 14: ...Set it to OFF position default for no motor shaft lock free spin when drive disabled Set it to ON position for motor shaft lock 7 10 Self Test Configuration SW16 For test and system diagnosis purpose EM42 is featured with Self Test Anytime DIP switch SW16 is switched to ON position the drive will automatically rotate the driven stepper motor back and forth for one round in each direction Set this ...

Страница 15: ...igure 12 Typical connection 10 Sequence Chart of Control Signals In order to avoid some fault operations and deviations PUL DIR and ENA should abide by some rules shown as following diagram Figure 13 Sequence chart of control signals Remark a t1 ENA must be ahead of DIR by at least 5 s Usually ENA and ENA are NC not connected See Connector P1 Configurations for more information b t2 DIR must be ah...

Страница 16: ...ode between ALM and ALM will be changed See Fault Output Configuration section for detail Priority Time s of Blink Sequence wave of red LED Description 1st 1 Over current protection activated when peak current exceeds the limit 2nd 2 Over voltage protection activated when drive working voltage is greater than 60VDC Figure 14 Error Protections When above protections are active the motor shaft will ...

Страница 17: ...ems can be traced to electrical noise controller software errors or mistake in wiring Problem Symptoms and Possible Causes Symptoms Possible Problems Motor is not rotating No power Pulse revolution setting is wrong DIP switch current setting is wrong Fault condition exists The drive is disabled Motor rotates in the wrong direction Motor phases may be connected in reverse The drive in fault DIP swi...

Страница 18: ...tion or misuse or operation beyond the electrical specifications of the product and or operation beyond environmental specifications for the product Obtaining Warranty Service To obtain warranty service please contact your seller to obtain a returned material authorization number RMA before returning product for service Shipping Failed Products If your product fail during the warranty period pleas...

Страница 19: ...leadshine com Tel 86 755 2643 4369 All Regions 86 755 2641 7617 North South America 86 755 2641 7674 Asia Australia Africa 86 755 2640 9254 Europe Fax 86 755 2640 2718 Email sales leadshine com tech leadshine com Leadshine America Inc Address 26050 Towne Centre Dr Foothill Ranch CA 92610 USA Tel 1 949 608 7270 Fax 1 949 608 7298 Web http www leadshineusa com Email sales leadshineusa com Sales supp...

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