SEW-EURODRIVE Products: IPOSplus® positioning and sequence control system

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IPOSplus® positioning and sequence control system

The basic functions and options of IPOS^plus® units ensure that the program is no longer only an open-loop speed controller.

In fact, the positioning and sequence control system integrated in MOVIDRIVE^® can often take a great deal of load off the master PLC, or maybe even replace it.

Reducing the central control offers SEW customers significant potential savings in terms of hardware and the complexity of electrical installation.

The programming work is divided between the PLC and inverter control. However, users must familiarize themselves with the system. This includes getting to know IPOS^plus® if you want to make effective use of what it has to offer.

IPOSplus® features

The IPOS^plus® sequence control system makes it possible to run a user program, disregarding any encoder feedback or the selected control mode (VFC, CFC, SERVO).

In conjunction with encoder feedback, the IPOS^plus® positioning control provides a high-performance point-to-point positioning capability.

The program is run independent of encoder feedback and operating mode.

MOVIDRIVE^® continues to run the user program even if the unit develops a malfunction (troubleshooting is possible in the user program).

IPOS^plus® can run several user programs/tasks simultaneously, independent of one another. Tasks can be interrupted using interrupts.

The user programs can contain several hundreds of program lines.

Easy-to-use and comprehensive control options for IPOS^plus® units.

Access to all available options:

Input/output card

Fieldbus interfaces

Synchronous operation card

Extensive communication options:

System bus (S-bus)

RS-485

RS-232 (with interface adapters USS21A, UWS11A, UWS21A)

Fieldbus interfaces

Processing of binary and analog input/output signals.

Positioning with adjustable travel speed and positioning ramps.

Presetting for position, speed and torque control loops with minimized lag error.

Absolute encoder processing.

1024 32-bit variables are available in the IPOS^plus® program. Of these variables, 128 can usually be stored protected against power failure.

With IPOS^plus®, all inverter parameters can be read and written via communication commands.

2 touch probe inputs.

Ramp types:

Linear

Sine

Square

Bus ramp

Jerk-limited

Electronic cam

I-synchronous operation

Status and monitoring functions:

Lag error monitoring

Position reporting

Software and hardware limit switches

Encoder function

9 reference travel types.

The following functions can be changed during movement:

Target position

Travel speed

Positioning ramp

Torque

"Endless positioning" is possible.

Override function.

The following technology functions can be controlled with a virtual encoder:

Electronic cam

Internal synchronous operation

Programming in the compiler also offers:

Program creation in a standard language

Symbolic variable names

Possibility of creating program modules that can be used again in other projects

Clear, modular and structured programming is possible

Different programming techniques for loops

Compiler control using preprocessor commands

Standard structures

User-defined structures

Standard functions

Debugger for troubleshooting

Extensive options for making remarks (remarks are only stored in the PC)

Programming in the assembler offers:

Remark lines

Programming in user travel units (units are entered in the program header)

Setpoint selection. Depending on the hardware and the required setpoint, the following options are available for the specification:

Analog setpoints

Fixed setpoints

Fixed setpoints and analog setpoints

Motor potentiometer

Master/slave operation with SBus

Master/slave operation with RS-485

DRS setpoint (only with the DRS11 option)

Fieldbus/fieldbus monitor setpoint (only with fieldbus interface option)

IPOS^plus® position setpoint

Technical data

Encoder resolution: MOVIDRIVE^® X15, motor encoder MOVIDRIVE^® X14, external encoder MOVIDRIVE^® X62, absolute encoder (including absolute encoder from HIPERFACE^®)	IPOS^plus® always operates with 4096 increments/motor revolution Prerequisites: Encoder resolution of 512, 1024 or 2048 pulses/motor revolution (any other encoder resolutions are not permitted) or resolver
Maximum program length/program memory:	MOVIDRIVE^® A (without MCH): 4 kByte MOVIDRIVE^® MCH: 8 kByte MOVIDRIVE^® B: 16 kByte 1 kByte equals approx. 200 to 250 assembler commands
Command processing time:	MOVIDRIVE^® A: Task 1: 1 assembler command/ms Task 2: 2 assembler commands/ms MOVIDRIVE^® B (the total in Task 1 und Task 2 ≤ 12 assembler commands/ms): Task 1: 1 to 10 assembler commands/ms Task 2: 2 to 11 assembler commands/ms Task 3: free computing time
Interrupts:	MOVIDRIVE^® A: 1 interrupt triggered by timer, error or touch probe interrupts task 1. MOVIDRIVE^® B: As MOVIDRIVE^® A, an additional 4 variable interrupts that interrupt tasks 2 and 3.
Variables:	MOVIDRIVE^® A: 512 / MOVIDRIVE^® B: 1024, of these 128 (0 to 127) are protected from loss in case of a power failure in each case. Exception: MDS, MDV, MCS, MCV with the electronic cam technology option. Here, 16 variables (0 to 15) are protected from loss in case of a power failure. Value range: - 2³¹ to +(2³¹ - 1)
Touch probe inputs:	2 inputs, processing time 200 µs
Sampling interval of analog inputs:	1 ms
Sampling interval of binary inputs:	MOVIDRIVE^® A: 5 ms MOVIDRIVE^® B: 1 ms
Binary inputs/outputs:	MOVIDRIVE^® A: MOVIDRIVE^® B: DIO option: DIP option:	6 inputs/3 outputs 8 inputs/6 outputs 8 inputs/8 outputs 8 inputs/8 outputs
Analog inputs/outputs:	MOVIDRIVE^®: DIO option:	1 input (0 to 10 V, ±10 V, 0 to 20 mA, 4 to 20 mA) 1 input (0 to 10 V, ±10 V, 0 to 20 mA) 2 outputs (± 10 V, 0 to 20 mA, 4 to 20 mA)