Emerson Mentor MP User Manual

Parameter structure
Keypad and display
Parameter x.00
Parameter
description
protocol
Performance
decremented
on
the
master
device
before
passing
to
the
protocol.
The
register
file
type
code
is
NOT
transmitted
by
MODBUS
and
all
this
behavior
is
that
#0.0
cannot
be
accessed.
The
following
function
codes
are
supported:
Table
6
-
1
Master
request
Table
6
-
2
Slave
response
FC06
Write
single
register
Table
6
-
3
Master
request
Data
types
format
Advanced parameter
descriptions
Serial comms
6.2.2 Slave address
The first byte of the frame is the slave node address. Valid slave node
addresses are 1 through 247 decimal. In the master request this byte
indicates the target slave node; in the slave response this byte indicates
the address of the slave sending the response.
Global addressing
Address zero addresses all slave nodes on the network. Slave nodes
suppress the response messages for broadcast requests.
6.2.3 MODBUS registers
The MODBUS register address range is 16bit (65536 registers) which at
the protocol level is represented by indexes 0 through 65535.
PLC registers
Modicon PLCs typically define 4 register 'files' each containing 65536
registers. Traditionally, the registers are referenced 1 through 65536
rather than 0 through 65535. The register address is therefore
register files can be considered to map onto a single register address
space. However, specific function codes are defined in MODBUS to
support access to the "coil" registers.
All standard CT drive parameters are mapped to register file '4' and the
coil function codes are not required.
CT parameter mapping
All CT products are parameterized using the #menu.param notation.
Indexes 'menu' and 'param' are in the range 0 through 99. The
#menu.param is mapped into the MODBUS register space as menu*100
+ param.
To correctly map the parameters at the application layer, the slave
device increments the received register address. The consequence of
6.2.6 Function codes
The function code determines the context and format of the message
data. Bit 7 of the function code is used in the slave response to indicate
an exception.
FC03 Read multiple
Read a contiguous array of registers. The slave imposes an upper limit
on the number of registers, which can be read. If this is exceeded the
slave will issue an exception code 2.
Writes a value to a single 16bit register. The normal response is an echo
of the request, returned after the register contents have been written.
The register address can correspond to a 32bit parameter but only 16
bits of data can be sent.
The MODBUS protocol specification defines registers as 16bit signed
integers. All CT devices support this data size.
Refer to the section 6.2.7 Extended data types on page 208 for detail on
accessing 32bit register data.
6.2.4 Data consistency
All CT devices support a minimum data consistency of one parameter
(16bit or 32bit data). Some devices support consistency for a complete
multiple register transaction.
6.2.5 Data encoding
MODBUS RTU uses a 'big-endian' representation for addresses and
data items (except the CRC, which is 'little-endian'). This means that
when a numerical quantity larger than a single byte is transmitted, the
MOST significant byte is sent first. So for example
16 - bits 0x1234 would be 0x12 0x34
32 - bits 0x12345678 would be 0x12 0x34 0x56 0x78
Mentor MP Advanced User Guide 207
Issue Number: 4 www.onxcontrol.com
Byte
Description
0
Slave
destination
node
address
1
through
247,
0
is
global
1
Function
code
0x03
2
Start
register
address
MSB
3
Start
register
address
LSB
4
Number
of
16bit
registers
MSB
5
Number
of
16bit
registers
LSB
6
CRC
LSB
7
CRC
MSB
Byte
Description
0
Slave
node
address
1
through
247
0
is
global
1
Function
code
0x06
2
Register
address
MSB
3
Register
address
LSB
4
Register
data
MSB
5
Register
data
LSB
6
CRC
LSB
7
CRC
MSB
CT
parameter
MODBUS PLC
register
Register address
(protocol level)
Comments
#X.Y 40000 + X x 100 + Y
X x 100 + Y - 1
#0.0
cannot
be accessed
Examples:
#1.2
40102
101
#1.0
40100
99
#0.1
40001
0
#70.0
47000
6999
Byte
Description
0
Slave
source
node
address
1
Function
code
0x03
2
Length
of
register
data
in
read
block
(in
bytes)
3
Register
data
0
MSB
4
Register
data
0
LSB
3+byte
count
CRC
LSB
4+byte
count
CRC
MSB
Code
Description
3
Read
multiple
16bit
registers
6
Write
single
register
16
Write
multiple
16bit
registers
23
Read
and
write
multiple
16bit
registers
File type
Description
1
Read
only
bits
("coil")
2
Read
/
write
bits
("coil")
3
Read
only
16bit
register
4
Read
/
write
16bit
register

Emerson Mentor MP Specifications

General

Type	DC Drive
Frequency	50/60 Hz
Protection Features	Overcurrent, overvoltage, undervoltage, overtemperature
Communication	Modbus, RS485
Enclosure Rating	NEMA 1, NEMA 12

Summary

General Information

Drive firmware version

Verifies drive firmware versions for consistent functionality across models, especially when connecting to existing systems or after repairs.

Environmental statement

Details commitment to minimizing environmental impact through ISO 14001 EMS and promotes product recycling.

REACH legislation

Informs about EC Regulation 1907/2006 concerning chemicals and Substances of Very High Concern (SVHC).

Parameter structure

1.1 Menu 0 (sub block)

Configures Menu 0 access via sub-blocks, allowing user-defined or pre-defined block organization.

1.2 Pre-defined sub blocks

Defines and enables/disables pre-defined sub-block headers for Menu 0 navigation.

1.3 Menu 0 (linear)

Configures Menu 0 for linear access, integrating commonly used advanced parameters.

1.4 Advanced menus

Describes navigation and availability of advanced menus, including keypad-specific options.

1.5 Solutions Modules

Explains how Solutions Modules integrate with drive types and slots, defining menus 15, 16, and 17.

Keypad and display

2.1 Understanding the display

Details the SM-Keypad (LED) and MP-Keypad (LCD) display structures and their information presentation.

2.2 Keypad operation

Explains the functions of keypad controls, including the joypad, mode button, and control buttons for drive operation.

2.3 Status mode

Describes the drive status display, showing a four-letter mnemonic and the last viewed parameter.

2.4 Parameter view mode

Explains how to navigate menus and parameters, including incrementing/decrementing and rollover behavior.

2.5 Edit mode

Details how to adjust parameter values using Up/Down keys and select digits with Left/Right keys.

2.7 Parameter access level and security

Covers user security settings and parameter access levels (L1, L2) that control visibility and writability of menus.

2.10 Drive reset

Explains the procedures for resetting the drive from trips and other functions via multiple methods.

Parameter x.00

3.1 Parameter x.00 reset

Describes how setting Pr x.00 to specific values and initiating a drive reset performs actions like saving parameters.

3.2 Saving parameters in drive EEPROM

Details the process of saving drive parameters to EEPROM, including user save and power-down save parameters.

3.3 Loading defaults

Explains how to load factory default settings (EUR or USA) using Pr x.00 and a drive reset.

3.5 SMARTCARD transfers

Covers transferring drive parameters, setup macros, and ladder programs to and from SMARTCARDs.

Parameter description format

4.1 Parameter ranges and variable maximums

Defines how parameter ranges and variable maximums are presented, including dependencies on other parameters or drive ratings.

4.2 Sources and destinations

Explains the concepts of source and destination pointer parameters for routing data and control signals within the drive.

4.3 Update rates

Details the update rates for parameters, including normal and fast update rates under special circumstances.

Advanced parameter descriptions

5.2 Menu 1: Speed reference

Controls the main speed reference selection, including limits and filters for drive operation.

5.3 Menu 2: Ramps

Manages acceleration and deceleration ramp profiles, including linear and S-ramp functions for smooth speed changes.

5.4 Menu 3: Speed feedback and speed control

Configures speed feedback sources and parameters for the speed control loop, ensuring accurate motor speed regulation.

5.5 Menu 4: Torque and current control

Sets parameters for controlling torque and current limits, essential for motor protection and performance.

5.6 Menu 5: Motor and field control

Manages motor parameters, including field control, voltage, and saturation settings for optimal motor operation.

5.7 Menu 6: Sequencer and clock

Provides functions for drive sequencing, logic control, and clock management for timed operations.

5.8 Menu 7: Analog I/O

Configures analog inputs and outputs for interfacing with external control signals and monitoring drive status.

5.9 Menu 8: Digital I/O

Manages digital inputs and outputs, including relays and buttons, for controlling drive functions and status indication.

5.10 Menu 9: Programmable logic, motorized pot and binary sum

Offers programmable logic functions, motorized pot emulation, and binary sum operations for flexible control.

5.11 Menu 10: Status and trips

Displays current drive status, alarms, and trip information for monitoring and troubleshooting.

5.12 Menu 11: General drive setup

Configures fundamental drive settings, including communication protocols, security, and power-up behavior.

5.13 Menu 12: Threshold detectors, variable selectors and brake control function

Implements threshold detection, variable selection, and brake control for advanced operational logic.

5.14 Menu 13: Position control

Enables precise control of motor position, supporting features like jogging, orientation, and referencing.

5.15 Menu 14: User PID controller

Allows configuration of a user-defined PID controller for custom regulation tasks.

5.20 Second motor parameters

Stores and configures parameters for a second motor, enabling dual-motor operation.

5.24 Menu 0 (linear)

Configures Menu 0 for linear access, integrating commonly used advanced parameters.

5.26 32 bit parameters

Identifies all 32-bit parameters in the drive and Solutions Modules for advanced configuration.

Serial communications protocol

6.1 ANSI communications protocol

Details the ANSIx3.28 communication protocol, including physical layer and command structure for drive access.

6.2 CT Modbus RTU specification

Explains the MODBUS RTU protocol adaptation, physical layer, framing, and function codes for drive communication.

Performance

7.1 Digital speed reference

Defines accuracy and resolution for digital speed references, impacting precise speed control.

7.2 Analog reference

Specifies accuracy, resolution, and update rates for analog references, enabling external control signals.

7.5 Current feedback

Details accuracy and resolution for current feedback, crucial for motor protection and current control.

7.6 Bandwidth

Outlines the bandwidth of the speed and current control loops, indicating system dynamic response capabilities.