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USER MANUAL
NI ISM-7411/7412
Ethernet Integrated Stepper
This manual describes the NI ISM-7411 and the NI ISM-7412 integrated steppers. It describes
electrical and mechanical characteristics of the devices, as well as I/O functionality.
Contents
Getting Started .......................................................................................................................... 2
Mounting the NI ISM-7411/7412............................................................................................. 3
Connecting the Power Supply .................................................................................................. 4
Choosing a Power Supply......................................................................................................... 5
Voltage.............................................................................................................................. 5
Current .............................................................................................................................. 5
Connecting the Device Using Ethernet .................................................................................... 10
Option 1: Connect a Drive to Your LAN ......................................................................... 11
Option 2: Connect a Device Directly to Your PC ............................................................ 13
Option 3: Use Two Network Interface Cards (NICs)....................................................... 13
Connecting Input Signals.......................................................................................................... 14
Connection Examples: STEP & DIR................................................................................ 15
Connection Examples: EN................................................................................................ 16
Connecting the Digital Output.................................................................................................. 18
Configuring the NI ISM-7411/7412 ......................................................................................... 19
Motor ................................................................................................................................ 20
Control .............................................................................................................................. 21
Self Test............................................................................................................................ 24
Reference Materials .................................................................................................................. 24
Torque-Speed Curves ....................................................................................................... 24
Heating.............................................................................................................................. 25
Mechanical Outlines ......................................................................................................... 28
Technical Specifications........................................................................................................... 29
Amplifier .......................................................................................................................... 29
Motor ................................................................................................................................ 30
Digital Inputs .................................................................................................................... 30
Analog Input ..................................................................................................................... 30
Digital Output ................................................................................................................... 30
+5V User Output .............................................................................................................. 30
Physical............................................................................................................................. 31
Alarm Codes ..................................................................................................................... 31
Worldwide Support and Services ............................................................................................. 32
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Summary of Contents for NI ISM-7412
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Page 1: Table Of Contents
USER MANUAL NI ISM-7411/7412 Ethernet Integrated Stepper This manual describes the NI ISM-7411 and the NI ISM-7412 integrated steppers. It describes electrical and mechanical characteristics of the devices, as well as I/O functionality. Contents Getting Started .......................... 2 Mounting the NI ISM-7411/7412..................... 3 Connecting the Power Supply .................... -
Page 2: Getting Started
Getting Started You will need the following items to get started with your NI ISM-7411/7412: 12 VDC to 70 VDC power supply. NI PS-12 (NI part number 748906-01) or NI PS-13 (NI part number 748907-01) recommended. Tool for inserting wires into the connector ... -
Page 3: Mounting The Ni Ism-7411/7412
Mounting the NI ISM-7411/7412 Mount your NI ISM-7411/7412 using four #6 or #8 screws. Securely fasten the NI ISM-7411/7412 to a smooth, flat metal surface to conduct heat away from the motor. To Heating prevent overheating, forced airflow from a fan may be required. Refer to the section for more information. -
Page 4: Connecting The Power Supply
Connect power supply negative (-) terminal to the connector terminal labeled V- . The NI ISM-7411/7412 contains an internal fuse that connects to the power supply positive (+) terminal. This fuse is not user-replaceable. If you want to install a user-replaceable fuse in your system, install a fast-acting 4 A fuse in line with the positive (+) power supply lead. -
Page 5: Choosing A Power Supply
The current draw is significantly different at higher speeds depending on the motor torque load. Estimating your current needs may require a good analysis of the load the motor will encounter. NI ISM-7411/7412 Integrated Stepper User Manual | © National Instruments | 5... - Page 6 0.50 0.00 Speed (RPS) Figure 5. NI ISM-7411 Behavior, 24 V Power Supply Torque Supply Current Supply Current No Load 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 Speed (RPS) 6 | ni.com | NI ISM-7411/7412 Integrated Stepper User Manual...
- Page 7 Speed (RPS) Figure 7. NI ISM-7411 Behavior, 70 V Power Supply Torque Supply Current Supply Current No Load 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 Speed (RPS) NI ISM-7411/7412 Integrated Stepper User Manual | © National Instruments | 7...
- Page 8 Figure 8. NI ISM-7412 Behavior, 12 V Power Supply Supply Current Torque Supply Current No Load 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 Speed (RPS) Figure 9. NI ISM-7412 Behavior, 24 V Power Supply Supply Current Torque Supply Current No Load 3.50...
- Page 9 Connecting and have large capacitors for storing energy coming back from the drive. Refer to the Power Supply for more information. NI ISM-7411/7412 Integrated Stepper User Manual | © National Instruments | 9...
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Page 10: Connecting The Device Using Ethernet
192.168.0.130 192.168.0.140 DHCP The IP address corresponding to positions 1 through E can be changed using the NI Stepper Configuration Utility software (use Quick Tuner for servo drives). Setting 0 is always 10.10.10.10, the universal recovery address. Setting F is DHCP, which commands the device to get an IP address from a DHCP server on the network. -
Page 11: Option 1: Connect A Drive To Your Lan
Once you’ve chosen an appropriate IP address for your device, set the rotary switch according to the address table above. If none of the default addresses are acceptable for your network, you can enter a new table of IP addresses using the NI Stepper Configuration Utility. If your network uses addresses starting with , the most common subnet, you will want to choose an 192.168.0... - Page 12 PC. However, you will not know what address the server assigns to the device. The NI Stepper Configuration Utility can find your device using the Drive Discovery feature, as long as your network isn’t too large. When the device connected to the network is powered on, select Drive Discovery from the Drive menu to launch the Network Interface Dialog dialog box.
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Page 13: Option 2: Connect A Device Directly To Your Pc
On Windows XP, right-click My Network Places and select Properties. On Windows 7, click Computer. Scroll down the left pane until you see Network. Right-click and select Properties. Select Change adapter settings. NI ISM-7411/7412 Integrated Stepper User Manual | © National Instruments | 13... -
Page 14: Connecting Input Signals
“The network cable is unplugged.” Connecting Input Signals The NI ISM-7411/7412 has three digital inputs and one analog input: STEP—High-speed digital input for step pulse commands, 5 V to 24 V logic •... -
Page 15: Connection Examples: Step & Dir
ISM-7411 with Sourcing ISM-7412 Outputs STEP/IN1+ STEP/IN1- Figure 17. Connecting to Indexer with Sinking Outputs 5-24 VDC DIR/IN2+ Indexer DIR/IN2- ISM-7411 with Sinking ISM-7412 STEP/IN1+ Outputs STEP STEP/IN1- NI ISM-7411/7412 Integrated Stepper User Manual | © National Instruments | 15... -
Page 16: Connection Examples: En
Run/Stop Switch (closed = run) When a device is configured to accept streaming commands through the NI Stepper Configuration Utility, the STEP & DIR inputs are reconfigured to accept limit switch input. The STEP input can be used with a forward limit (CW) switch while the DIR input can be used with a reverse limit (CCW) switch. - Page 17 When the proximity sensor activates, the input closes. Note When a device is configured to accept streaming commands through the NI Stepper Configuration Utility, the EN input is reconfigured to accept an input from a home switch. NI ISM-7411/7412 Integrated Stepper User Manual | © National Instruments | 17...
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Page 18: Connecting The Digital Output
Connecting the Digital Output The NI ISM-7411/7412 has a digital output labeled OUT. You can use this output to automatically control a motor brake or signal fault conditions. You can also use it to drive LEDs, relays, and the inputs of other electronic devices like PLCs. The positive collector (OUT+) and negative emitter (OUT-) terminals of the output transistor are available at the connector. -
Page 19: Configuring The Ni Ism-7411/7412
1N4935 suppression diode – OUT– Configuring the NI ISM-7411/7412 The NI ISM-7411/7412 is configured in software with the NI Stepper Configuration Utility, available at . When you have located your device with the utility, you can ni.com/downloads configure various aspects of the motor performance and control for your application. -
Page 20: Motor
Motor From the NI Stepper Configuration Utility home screen, click the Motor icon to open the configuration window and configure the following settings: Figure 27. NI Stepper Configuration Utility Configuration Window Running Current Seting the Running Current to 100% will achieve maximum torque. However, under some conditions you might want to reduce the current to save power or lower motor temperature. -
Page 21: Control
You can reduce motor heating and power consumption by lowering the motor current when it is not moving. The NI ISM-7411/7412 automatically lowers the motor current when it is idle for longer than the time specified by Idle Current Delay. - Page 22 A/B signals of a master encoder, for “follow” applications. Steps/Rev The NI ISM-7411/7412 requires a source of step pulses to command motion. This is normally commanded by ENET Control however it can also be commanded by a PLC, indexer, motion controller, or another type of device that can produce step pulses with a frequency proportional to the desired motor speed.
- Page 23 This results in extra motion and inaccurate motor and load positioning. To solve this problem, the NI ISM-7411/7412 includes a digital noise filter on the STEP and DIR inputs. The default factory setting of this filter is 7.5 MHz, which is suitable for most applications.
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Page 24: Self Test
Self Test If you are having trouble getting your motor to turn, use the built-in self test from the NI Stepper Configuration Utility home page. Select the Drive menu item and choose Self Test. Use this feature to confirm that the motor is wired correctly, selected, and otherwise operational. -
Page 25: Heating
There are certain combinations of speed and voltage at which you can continuously operate a motor without damage. The drive electronics of the NI ISM-7411/7412 also dissipate power. The heat produced by the electronics is dependent on power supply voltage and motor speed. - Page 26 48 V Duty Cycle 65 V Duty Cycle Speed (RPS) Figure 33. NI ISM-7412 Speed/Duty Cycle Curve 12/24 V Duty Cycle 48 V Duty Cycle 65 V Duty Cycle Speed (RPS) 26 | ni.com | NI ISM-7411/7412 Integrated Stepper User Manual...
- Page 27 Figure 34. Temperature vs. Speed for the NI ISM-7411 12 V 24 V 48 V Speed (RPS) Figure 35. Temperature vs. Speed for the NI ISM-7412 12 V 24 V 48 V Speed (RPS) NI ISM-7411/7412 Integrated Stepper User Manual | © National Instruments | 27...
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Page 28: Mechanical Outlines
15 0.2 1.6 0.2 29.5 MATING CONNECTORS Side view 38 1 6.350 –0.013 Top view 76 Ref 13.5 47.14 0.2 56.4 MAX 47.14 MATING 38.1 0.05 CONNECTORS 5.85 0.1 Front view 28 | ni.com | NI ISM-7411/7412 Integrated Stepper User Manual... -
Page 29: Technical Specifications
38.1 0.05 CONNECTORS 5.85 0.1 Front view Technical Specifications Amplifier Amplifier type........... Dual H-bridge, 4 quadrant Current control..........4 state PWM @ 20 kHz Protection............Over-voltage, under-voltage, over-current, over-temperature NI ISM-7411/7412 Integrated Stepper User Manual | © National Instruments | 29... -
Page 30: Motor
Resolution ............12 bits Digital Output Optically isolated, user programmable. Maximum voltage ..........30 VDC max Maximum current ..........40 mA +5V User Output Range ..............4.8 to 5.0 V Current ..............40 mA, max 30 | ni.com | NI ISM-7411/7412 Integrated Stepper User Manual... -
Page 31: Physical
1 red, 2 green Move attempted, drive disabled 2 red, 1 green CCW limit RRGG 2 red, 2 green CW limit RRRG 3 red, 1 green Drive overheating NI ISM-7411/7412 Integrated Stepper User Manual | © National Instruments | 31... -
Page 32: Worldwide Support And Services
NI product. Refer to the Export Compliance Information at ni.com/legal/export-compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data. NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS.
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