MC4Unt
with 2 to 8 drives, wide power range
Overview
Customized Multi-Axis Modular Control System & EtherCAT ® Master
The SPiiPlusNT (NT - Network Controller) is designed for incorporation in the MC4U. Once it is plugged into an MC4U enclosure, the MC4U becomes also an EtherCAT master designated MC4Unt. It manages the EtherCAT network with up to 32 axes of motion and countless number of I/Os and sensor modules.” To “It manages the EtherCAT network with up to 32 axes of motion and a countless number of I/Os and sensor modules. The SPiiPlusNT also includes Servo Processors for controlling local drives that reside within the same MC4Unt enclosure.
Like all SPiiPlus products, the SPiiPlusNT uses the same ACSPL+ high level programming language and is supported by the same set of software tools such as the SPiiPlus MMI Application Studio and API for host application development.
The following versions are available:
- SPiiPlusNT-HP-32 - High Performance EtherCAT master, with 4 or 8 built in drives for applications with up to 32 network axes
- SPiiPlusNT-LT-32 - Economical EtherCAT master controller, with 4 or 8 built in drives for applications with up to 32 network axes
- SPiiPlusNT-LD - High Performance EtherCAT master Linear Drive controllers, with 4 or 8 built in drives for applications with up to 32 network axes
Specifications
Profile Generation
Motion Profile generation rate: 1 or 2kHz
Servo
A standard comprehensive set of powerful algorithms to enhance accuracy, move & settle time, smooth velocity, stability and robustness.
- Advanced PIV cascaded structure
- Loop shaping filters
- Gain Scheduling
- Gantry MIMO control
- Dual feedback / loop control
- Disturbance rejection control
Optional Servoboost® algorithem that provides better, more consistent servo performance, insensitive to noise and large changes in the system
Feedback
- Feedback types: incremental digital encoders, Sin-Cos encoders (optional),
Absolute encoders (optional) analog inputs and 3 hall inputs for initiating commutation. - Incremental Digital Encoder:
One per axis, A&B,I; UP/DN,I; CLK/DIR,I. Type: RS-422.
Max. rate: 40 million encoder counts/sec. - Sin-Cos Encoder (optional)
SPiiPlusNT/DC-HP/LD:
Multiplication factor: From x4, to-DC-LT: - x4,096, DC-HP- x65,536
Rate: 250*103 or (LD version) 4*106 sine periods/sec
Sin-Cos offset compensation: programmable, ±500mV.
Maximum acceleration with Sin-Cos encoder: 108 sine periods/second2.
SPiiPlusNT/DC-LT:
Multiplication factor: x4 - x1,024.
Sin-Cos offset compensation: N/A
Rate: 125*103 sine periods/sec
Maximum acceleration with Sin-Cos encoder:108 sine periods/second2.
Hall inputs:
- Quantity: A set of three per axis. Single-ended, 5V, source, opto-isolated
- Input circuit current: <7mA.
- Absolute Encoder:
Absolute encoders (optional): EnDat 2.1/2.2, Smart-ABS, Panasonic, Biss-C, Hiperface.
Drive Interface
- Analog commands: Two per axis.
- For SPiiPlusNT-LD only:
Type: ±10V,differential, 16 bit resolution.
Offset compensation: programmable, 0.3mV resolution.
PWM Drive Commands: 3 per
axis. PWM Switching Method, Advanced unipolar space vector modulation.
PWM Switching frequency: 40kHz on the motor. Current loop sampling rate: 20kHz
Control algorithm: Field Oriented control with PI filters.
Current feedback resolution:
SPiiPlusNT/DC-HP: 16 bit.
SPiiPlusNT/DC-LT: 12 bit.
Digital I/O
- Note: It is recommended to use a dedicated supply for digital IO. See Power Supplies section.
Safety Inputs:
Emergency stop input:
Type: two-terminal, sink or source, opto-isolated.
Left and right limit inputs:
One pair per axis
Type: single-ended, sink (default) or source, configurable by jumper, opto-isolated.
Supply: 5V or 24V.
Input current: <15mA.
Digital Inputs:
General purpose inputs:
Quantity: eight. Type: single-ended, 5V or 24V, sink (default) or source, optoisolated.
Input current: <15mA.
Mark (position capture) inputs:
Quantity: Up to four. Refer to SPiiPlusNT user manual for detailed information.
Type: RS-422.
Propagation delay: <0.1 μsec.
Note: additional four MARK inputs (MARK2), single-ended and opto-isolated, are available through general purpose digital inputs IN4, IN5, IN6 and IN7
Digital Outputs:
- General purpose outputs:
Quantity: eight. Type: single-ended, 5V or 24V, sink (default) or source, optoisolated, 100mA per output.
Mechanical Brake Outputs:
- Quantity: one per axis. Type: single-ended, 5V, source only, opto-isolated, 7mA per
output. By default, configured as dynamic brake.
Note: general purpose digital outputs can be configured as Mechanical Brake Outputs
PEG (Position Event Generator) pulse outputs:
- For details, refer to “SPiiPlusNT PEG and MARK Operations” Application Note.
Quantity: Up to six. Refer to SPiiPlusNT user manual for detailed information.
Type: RS-422. Propagation delay: <0.1μsec.
PEG pulse width: 25nsec to 1.7msec.
PEG position accuracy: ±1 count at speeds up to 18,000,000 counts/sec.
PEG states outputs:
- Quantity: Up to six. Refer to SPiiPlusNT user manual for
detailed information.
Type: RS-422. Propagation delay: <0.1μsec.
HSSI Expansion Channels:
- Up to three. Each channel provides 64 input bits and
64 output bits per channel, sampled and updated every 50μS.
Type: RS-422.
Analog I/O
- Analog Inputs:
Unused Sin-Cos encoder inputs can be used as general purpose analog inputs.
Quantity: up to 16
Type: 1Vptp, differential
Resolution and SNR:
SPiiPlusNT/DC-HP: 16 bit, SNR>72db
SPiiPlusNT/DC-LT: 12 bit, SNR>52db
General purpose ±10V analog inputs: - SPiiPlusNT/DC-HP:
Quantity: four and additional up to four when axes number 3 and/or 7 Sin-Cos encoders are not used. These inputs can be used as general purpose. Type: ±10V,
differential. Resolution: 16 bits - SPiiPlusNT/DC-LT:
Quantity: up to four when axes number 3 and/ or 7 Sin-Cos encoders are not used.
These inputs can be used for general purpose. Type: ±10V,differential. Resolution:
12 bits.
General purpose
Type: ±10V
Type: ±10V, PWM filtered
Quantity: 2, 4.
Resolution: 10bit.
Communication Channels
- Serial: two RS-232. Up to 115,200bps.
- Ethernet: one, TCP/IP, 10/100 Mbits/sec.
- Simultaneous communication through all channels is fully supported. Modbus
protocol as master or slave is supported via all channels. - EtherCAT: One, 100 Mbit/sec, supporting CoE and FoE protocols.
MPU
- User Memory: RAM: 128Mb.
- Flash: 128Mb.
- Powerup Time: 25-100 sec. according to system and network configuration
Power Supplies
- Power Supply Voltage/Current: +5Vdc
(±10%)/2.7A, -5Vdc (±10%)/0.1A, ±12Vdc
(±5%)/0.6A. Supplied internally from the power supply module enclosed in the MC4U configuration - I/O Supply Voltage/Current: +5Vdc (±10%)/1A, or 24Vdc (±10%)/1A.
- Safety Supply Voltage/Current: +5Vdc (±10%)/1A, or 24Vdc (±10%)/1A.
- Six LEDs on the front panel indicate the status of all above power supplies.
Standards & Environment
- Operating Temperature: 0˚C to 55˚C.
- Storage Temperature: - 40˚C to 70˚C.
- Humidity: 90%RH, non-condensing.
- The controllers are CE (EMC), UL certified and RoHS compliant.