Bardac drives P2 Profibus DP Interface User Guide

: June 13, 2024
: Bardac drives

Table of Contents

P2 Profibus DP Interface
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Proﬁbus DP Interface
User Guide

P2 Profibus DP Interface

This option module is speciﬁcally designed to be used with the P2 and V3 series of variable speed drive products and is intended for professional incorporation into complete equipment or systems. If installed incorrectly it may present a safety hazard. Before commencing installation and commissioning, the user should ensure they are fully familiar with the P2, and in particular have read the important safety information and warnings contained in the P2 / V3 manual.
Note
This User Guide is intended to be used with P2 & V3 ﬁrmware version 1.20.
The ﬁrmware version of the drive can be displayed in parameter P0-28.
Overview
The Proﬁbus DP Interface is intended to be installed in the drive option slot, and allows the drive to be connected to a Proﬁbus DP network. The interface oﬀers the following functionality:

Automatic Baud Rate Detection from 9.6kpbs to 12mbps Cyclic Process Data Exchange
4 Input Words from the network master to the drive
4 Output Words from the drive to the network master
Parameter Access via DPV-1 Read / Write Services

Installation

Ensure the drive power is removed prior to installing the option module
Remove the blanking cover from the option module slot
Carefully slide the option module into the slot, ensuring that the locating tabs are correctly aligned. Do not use excessive force
Tighten the 2 clamping screws to secure the module in place

Drive Setup

Set the drive to Fieldbus control mode by setting parameter P1-12 = 4
Ensure Advanced Parameter Access is enabled on the drive by setting P1-14 = 101
Set the required node address for the drive in P5-01
Further drive parameter setting options are possible, please read the drive P2/V3 User Guide for further information

Compatibility:

82-PROFB -CC Proﬁbus DP Interface User Guide
Data Mapping
P2 & V3 series drives support a 4 word cyclic data exchange format. The format and data contained in each word is detailed below.
Input Data (PDI) Telegram
This part of the memory contains the real-time drive commands sent from the network master to the drive, allowing the drive to be controlled. The function of the ﬁrst two data words (PDI 1 and PDI 2) is ﬁxed, to allow basic control over the drive operation and output frequency to be achieved. The conﬁguration of the remaining two words can be adjusted by the user.
A 16 Bit control word is used to control the behaviour of the drive when P1-12 = 4. The bits function as follows :

Bit| Name| Description|
---|---|---|---
0| Drive Run| 0 : Drive Stop
1 : Drive Run| For normal operation, Bit 3 has the highest priority, bit 0 has the lowest priority
(bit 3>bit 1>bit 0). For normal run/stop control, Bit 0 only should be used.
Note that the start/stop (bit 0), fast stop (bit 1) and coast stop (bit 3) can only be used to control the drive when P2-31= 0 to 3. If P2-37 > 3, the start/stop function is controlled directly by the drive control terminals. The Reset function (bit 2) will operate providing that the drive is set for Fieldbus control
P1-12 = 4.
1| Fast Stop Select| 0 : No Function
1 : Drive Stop with Deceleration Ramp 2
2| Fault Reset| 0 : No Function
1 : Rising Edge fault reset request
3| Not Used| 0 : No Function
1 : Drive Coasts to stop. Overrides bit 0
15-Apr| Coast Stop| Not Used

PDI Word 2: Fixed Function : Frequency Setpoint
This word is used to transfer the frequency setpoint to the Optidrive. The input data is a 16bit signed integer including one decimal place. For example, a value of 500 represents a frequency setpoint to the drive of 50.0Hz, value 123 gives 12.3Hz. For a negative (reverse) speed reference, a negative value can be transferred to the drive, where the MSB of the high byte must be 1. For example, -1(0xFFFF) gives -0.1Hz. -234(0xFF16) gives -23.4Hz. The allowed input value range is from -5000 to +5000; however the drive output speed will be limited by the maximum speed set by P1-01. PDI Word 3 : User Deﬁned Function
The function of this data word can be selected by the user using drive parameter P5-14. The possible setting options are shown below:
0: Torque limit/reference (P2 Only) – This option must be selected if the drive output torque limit / setpoint is to be controlled from the ﬁeldbus. This also requires setting P4-06 = 3. The input data is a 16bit unsigned integer including one decimal place. For example, a value of 500 represents a torque setpoint to the drive of 50.0%, value 123 gives 12.3%.
The allowed input value range is from 0 to +2000; however the drive output torque will be limited by the maximum limit set by P4-07.

User PID reference register – This option allows the setpoint to the PID controller to be received from the Fieldbus. In order for this option to be used, P9-38 must be set to 1, and the PID User setpoint must not be utilised within the drive PLC function.
User register 3 – The value received by the drive in PDI 3 is transferred to User Register
This option allows the function of the process data word to be deﬁned in Parameter Group 9. In this case, User Register 3 should not be written to within any PLC function code, although the value can be read. PDI Word 4: User

Deﬁned Function
The function of this data word can be selected by the user using drive parameter P5-13. The possible setting options are shown below:
0: Fieldbus Ramp Control – This option must be selected if the drive acceleration and deceleration ramps are to be controlled from the ﬁeldbus.

P5-07 must also be set to 1 to enable this function.

User register 4 – The value received by the drive in PDI 4 is transferred to User Register 4. This option allows the function of the process data word to be deﬁned in Parameter Group 9. In this case, User Register 3 should not be written to within any PLC function code, although the value can be read.

Output Data
This part of the memory contains the real-time drive data returned from the drive to the network master. The function of the ﬁrst two data words (PDO 1 and PDO 2) is ﬁxed. The conﬁguration of the remaining two words can be adjusted by the user.
PDO Word 1: Fixed Function : Drive Status & Error Code:
This word contains 2 bytes with information as follows:
High byte : Gives the drive error (fault) code. (Valid when the drive is tripped)
Low byte : Gives the drive status information, 8 bits which function as follows :

Bit	Logic 0	Logic 1	Notes
0	Drive Stopped	Drive Running
1	Drive Healthy	Drive Fault (Tripped)
2	Maintenance Indication (V3 Only)	STO Inhibit	Logic 1 indicates that the

Safe Torque Oﬀ hardware circuit connections required for drive operation are not present. For further information, refer to the P2/V3 drive user guide.
3| | |
4-7| Not used| |

PDO Word 2 : Fixed Function : Output Frequency
This word gives the real time drive output frequency information. The data is a 16bit signed integer with one decimal place. E.g. value 123 means 12.3Hz. Value – 234 (0xFF16) means -23.4Hz.
PDO Word 3 : Output Current
Data to be transferred in this word can be selected by the User in drive parameter P5-12. The possible settings are as follows:
0: Motor current – Output current to 1 decimal place, e.g. 100 = 10.0 Amps

Power (x.xx kW) Output power in kW to two decimal places, e.g. 400 = 4.00kW
Digital input status – Bit 0 indicates digital input 1 status, bit 1 indicates digital input 2 status etc.
Analog Input 2 Signal Level – 0 to 1000 = 0 to 100.0%
Drive Heatsink Temperature – 0 to 100 = 0 to 100°C
User register 1 – User Deﬁned Register 1 Value
User register 2– User Deﬁned Register 1 Value
P0-80 value – User Selected data value.
PDO Word 4 : User Deﬁned

Data to be transferred in this word can be selected by the User in drive parameter P5-08. The possible settings are as follows:
0 : Output Torque (Optidrive P2 Only) – 0 to 2000 = 0 to 200.0%

Output Power – Output power in kW to two decimal places, e.g. 400 = 4.00kW
Digital Input Status – Bit 0 indicates digital input 1 status, bit 1 indicates digital input 2 status etc.
Analog Input 2 Signal Level – 0 to 1000 = 0 to 100.0%
Drive Heatsink Temperature – 0 to 100 = 0 to 100°C

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