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4-14 Input / Output MN1957
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4.4.2 Stepper control outputs - models NSB203... / NSB205...
The stepper control outputs are available on connectors X2 and X3, as shown in section
4.1.1. There are four sets of stepper motor control outputs, operating in the range 0 Hz to
500 kHz. Each of the step (pulse) and direction signals from the NextMove ESB-2 is driven
by a ULN2803 open collector Darlington output device. The STEPPERDELAY keyword allows
a 0 - 4.25 μs delay to be introduced between state changes of the step and direction outputs.
The FREQ keyword can be used to directly control the output frequency, between 60 Hz and
500 kHz - see the Mint help file.
The ULN2803 drivers are static sensitive devices. Take appropriate ESD
precautions when handling the NextMove ESB-2. A 5 V, 600 mA supply is
provided on connectors X2 and X3 for powering external circuits, as shown in
Figure 19. The same 5 V supply is also present on connectors X5, X6, X7, X14
and X15 for powering encoders. Ensure that the total combined current demand of all 5 V
outputs does not exceed 1.8 A. In situations where induced noise is affecting a step or
direction output, it may be necessary to connect a 5 kΩ or 10 kΩ pull-up resistor between the
output and the 5 V supply (pin 4).
Figure 19: NSB203... / NSB205... only: Connections to a typical stepper drive
(e.g. Baldor DSMS series)
CAUTION
Stepper drive opto-isolated inputs
Optocoupler
reference
Step clock
input
CW/CCW
direction
input
Enable input
ULN2803
ULN2803
74AHCT244
74AHCT244
NextMove ESB-2
STEP0
DIR0
DGND
RELCOM
RELNC
+5V
X2
X12
3
5
1
7
8
4
Step
output
Direction
output
Enable
GND
GND
+5V
+5V
- MN1957 NextMove ESB-2 1
- Contents 3
- 5 Operation 4
- 6 Troubleshooting 4
- Appendices 5
- General Information 7
- 1 General Information 7
- Safety Notice 8
- Precautions 8
- 2.1 NextMove ESB-2 features 9
- 2-2 Introduction MN1957 10
- 2.2 Receiving and inspection 11
- 2.3 Units and abbreviations 12
- 3.1 Introduction 13
- 140 (5.51) 14
- 124 (4.9) 14
- 45 (1.8) 14
- 4.1 Introduction 17
- 4.1.1 Connector locations 18
- 4.2 Analog I/O 19
- 4.2.2 Analog outputs 21
- , Flex+Drive 22
- , MintDrive 22
- 4.3 Digital I/O 23
- 4-10 Input / Output MN1957 26
- MN1957 Input / Output 4-11 27
- 4.3.2 Digital outputs 28
- 4.4 Other I/O 29
- 4-14 Input / Output MN1957 30
- 4.4.3 Encoder inputs 0-4 31
- 4-16 Input / Output MN1957 32
- 4.4.4 Relay connections 34
- 4.4.5 USB port 34
- 4.4.6 Serial port 35
- 4.4.7 Using RS232 35
- 4-20 Input / Output MN1957 36
- MN1957 Input / Output 4-21 37
- 4.5.1 CAN connector 38
- 4.5.2 CAN wiring 39
- 4.5.3 CANopen 40
- MN1957 Input / Output 4-25 41
- 4.5.4 Baldor CAN 42
- MN1957 Input / Output 4-27 43
- MN1957 Input / Output 4-29 45
- 4-30 Input / Output MN1957 46
- 5.1 Introduction 47
- 5.1.4 Preliminary checks 48
- 5.1.5 Power on checks 48
- 5.2 Mint Machine Center 49
- 5.2.1 Starting MMC 50
- 5.3 Mint WorkBench 51
- 5.3.1 Help file 52
- 5.3.2 Starting Mint WorkBench 53
- 5-8 Operation MN1957 54
- 5.4 Configuring an axis 55
- 5.4.2 Selecting a scale 56
- MN1957 Operation 5-11 57
- 5-12 Operation MN1957 58
- 5.5 Stepper axis - testing 59
- 5-14 Operation MN1957 60
- MN1957 Operation 5-15 61
- 5-16 Operation MN1957 62
- MN1957 Operation 5-17 63
- 5-18 Operation MN1957 64
- MN1957 Operation 5-19 65
- 5-20 Operation MN1957 66
- 5.7.2 Underdamped response 67
- 5.7.3 Overdamped response 68
- MN1957 Operation 5-23 69
- 5.8.1 Calculating KVELFF 70
- MN1957 Operation 5-25 71
- 5-26 Operation MN1957 72
- 5.8.2 Adjusting KPROP 73
- 5-28 Operation MN1957 74
- MN1957 Operation 5-29 75
- 5-30 Operation MN1957 76
- MN1957 Operation 5-31 77
- 5.11 Saving setup information 78
- MN1957 Operation 5-33 79
- 5-34 Operation MN1957 80
- 6.1 Introduction 81
- 6.2 NextMove ESB-2 indicators 82
- 6.2.2 Communication 83
- 6.2.3 Motor control 84
- MN1957 Troubleshooting 6-5 85
- 6.2.4 Mint WorkBench 86
- 6.2.5 CANopen 87
- 6-8 Troubleshooting MN1957 88
- 6.2.6 Baldor CAN 89
- 6-10 Troubleshooting MN1957 90
- 7.1 Introduction 91
- 7.1.4 Digital inputs 92
- 7.1.6 Relay output 92
- 7.1.7 Stepper control outputs 93
- 7.1.8 Encoder inputs 93
- 7.1.9 Serial RS232/RS485 port 93
- 7.1.10 CAN interface 94
- 7.1.11 Environmental 94
- 7.1.12 Weights and dimensions 94
- EC Declaration of Conformity 95
- 7-6 Specifications MN1957 96
- A.1 Introduction 97
- A.1.2 Baldor CAN nodes 98
- A.1.3 HMI panels 99
- A.1.4 Baldor keypad 99
- A-4 Accessories MN1957 100
- B.1 Introduction 101
- MN1957 Index 115
- Index MN1957 116
- Comments 119
- Comments MN1957 120
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