Ksb Pumpdrive 2 User manual

Field Bus Module

BACnet MS/TP Gateway

PumpDrive 2

Supplementary Operating

Manual

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Supplementary Operating Manual BACnet MS/TP Gateway

Original operating manual

edited or processed for any other purpose, nor otherwise transmitted, published or made available to a

third party without the manufacturer's express written consent.

Subject to technical modification without prior notice.

Contents

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BACnet MS/TP Gateway

Contents

1 Supplementary Operating Manual....................................................................................................... 4

1.1 General..............................................................................................................................................................4

1.2 Function ............................................................................................................................................................4

1.3 Field bus module connections .........................................................................................................................4

1.4 Installing the field bus module........................................................................................................................5

1.5 Connecting the field bus module....................................................................................................................7

1.6 Setting the parameters of the field bus module............................................................................................9

1.7 Operation of frequency inverter with BACnet MS/TP..................................................................................11

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1 Supplementary Operating Manual

1.1 General

This supplementary operating manual accompanies the installation/operating

manual. All information contained in the installation/operating manual must be

observed.

Table1: Relevant operating manuals

Type series Reference number of the operating/installation

manual

PumpDrive 2 4074.81

1.2 Function

The BACnet MS/TP module is used to connect the frequency inverter to a BACnet MS/

TP network. A BACnet MS/TP module is required for monitoring and open-loop or

closed-loop control purposes for each frequency inverter in single-pump or multiple

pump configurations of up to 2 pump sets.

▪BACnet = Building Automation and Control Networks

▪MS/TP = Master-Slave/Token Passing

Interface The BACnet MS/TP module has a BACnet MS/TP interface.

Communication protocol BACnet MS/TP

Bus terminator External interface EIA-485 (RS 485)

Transmission rate 9600baud, 19200baud, 38400 baud,

57600baud, 115200 baud

Device type B-ASC

Information and downloads on BACnet are available online at http://www.big-

eu.org.

The BACnet MS/TP EIA-485 network cable should have the following properties:

▪Flexible

▪Shielded

▪Twisted wires for the data line

▪The wave impedance should be between 100 and 130 ohms.

▪For more details, see ANSI/ASHRAE standard 135, “Physical Layer” section.

Information on BACnet MS/TP and downloads for BACnet MS/TP are available online

at www.bacnet.org. For additional accessories for the BACnet MS/TP module (i.e.

M12 connectors and terminating resistors), see the type series booklet.

EDE lists

KSB provides an EDE file on the KSB web site for exchanging PumpDrive-specific

BACnet information. The EDE lists document all inbound and outbound objects with

the associated defined properties.

1.3 Field bus module connections

The field bus modules are plug-in modules.

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BACnet MS/TP Gateway

3 4 5

Fig.1: Field bus module

Table2: Field bus module

Position

Component Description

1 M12 connector A B-coded, 5-pole

2 M12 socket B B-coded, 5-pole

3 Amber LED signal lamp Device-internal bus communication OK (heartbeat detected)

4 Green LED signal lamp Communication: Valid data package received

5 Red LED signal lamp Token loss (token timeout)

▪Can be retrofitted

▪Internal T-connector (bus looped through); uninterruptible even in the event of a

frequency inverter power failure

▪Connector for self -assembly

1.4 Installing the field bus module

The field bus module can be fitted in an available slot of the frequency inverter.

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Blind cover

Fig.2: Blind cover

1 Blind cover

1. Unscrew the cross recessed head screws in the blind cover.

2. Remove the blind cover.

Field bus module

Fig.3: Inserting the field

bus module

1. Carefully insert the field bus module into the open slot. The plug-in module is

guided on rails until it engages in the contact.

Fig.4: Securing the field bus

module

2. Secure the field bus module using the 4 cross recessed head screws. IP55

enclosure protection is not provided until the screws have been tightened.

CAUTION

Incorrect assembly

Impairment of protection provided by the enclosure (protection may be

compromised)!

▷Cover unused M12 connections with a cap (included in the scope of supply).

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BACnet MS/TP Gateway

1.5 Connecting the field bus module

Observe the following when connecting the field bus module:

▪Before the bus connection is established among the nodes, potential equalisation

must have been implemented and checked.

▪For high-frequency shielding, use shielded cables and assemble according to EMC

requirements.

▪A minimum distance of 0.3metres is recommended between such cables and

other electric conductors.

▪Do not use the bus cable to make any further connections in addition to the field

bus module (for example, 230V alert and 24V start).

▪A cable specified for the field bus module must be used as the connecting cable.

CAUTION

Incorrect installation

Damage to the field bus module!

▷Never supply power to the field bus module via the M12 connections.

BA BA

Fig.5: Connecting the field bus module

Table3: Connecting the field bus module

Item Device M12 connector

1 Frequency inverter 1 M12 connector A: Coming

M12 socket B: Going

2 Frequency inverter 2 M12 connector A: Coming

M12 socket B: Going

The illustration shows a redundant version with one module for each pump set. For

non-redundant versions, the second BACnet module can be omitted.

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DC D

3 3

A B

Fig.6: Connecting a dual-pump system to the BACnet network (example)

1 BACnet A device

2 M12 cable for dual-pump configuration

3 M12 cable, BACnet MS/TP

4 Additional subscribers to BACnet

4 1

Fig.7: Pin assignment: a) Module contact arrangement b) Connector contact

arrangement

Table4: Pin assignment

Pin Conductor colour

code, line (CAN open)

Conductor colour

code, line (DIN47100)

M12 connector/M12

socket assignment (B

coding)

Signal

1 - - VP (+5V output) +5V

2 Blue Brown D- RS-485A/data-

3 Black Green GND GND

4 White White D+ RS-485A/data+

5 - - Shielding Shielding

Thread - - Shielding Shielding

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BACnet MS/TP Gateway

D +

GND

D -

Shielding

4 1

Fig.8: User-configured cable

ⓂM12 connector ⓃM12 connector

1 2 3 4 51 2 3 4 5

D +

D -

GND

1 2 3 4 5 1 2 3 4 5

A B

Shielding

Fig.9: Wiring diagram

Bus terminator Bus system termination is implemented as follows in line with the BACnet standard:

120

Fig.10: Bus terminator

Bus termination with polarisation is implemented at the start of the MS/TP bus in line

with the BACnet standard (typically at the BACnet router).

NOTE

The frequency inverter is reset when a field bus module is replaced or retrofitted.

Menu 3-12 for setting the parameters of the field bus module is then enabled in the

control panel.

1.6 Setting the parameters of the field bus module

Field bus control must be activated in the frequency inverter when using the field bus

module.

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Settings for the slave address and the control point are made at the control panel of

the frequency inverter.

Table5: Parameters for BACnet MS/TP module

Parameter Description Possible settings Factory setting

3-12-5-1 Device Identification

Device Object-Instance Number

0-4194303 Generated value

3-12-5-2 MS/TP MAC Address

Network address in accordance with MS/TP

frame format

1-254 254

3-12-5-3 Baud Rate

Baud rate of the BACnet slave

▪9600

▪19200

▪38400

▪57600

▪115200

38400

3-12-5-4 Pump Number

Unique number of the pump in the multiple pump

system

1-2 1

3-12-5-5 Communication Monitoring Time

If the BACnet module is not in the token cycle of

the MSTP network for a longer period of time, a

broken wire is reported.

0...60s 20s

3-12-5-6 Device Name

Device Object-Name Device name for device

identification in the network

Configuration via configuration

tool, maximum of 32 characters

KSB PumpDrive

3-12-5-7 Device Description

Device Object-Description Device description for

device identification in the network

Configuration via configuration

tool, maximum of 32 characters

KSB PumpDrive

3-12-5-8 Installation Location

Device Object-Location Installation location of

BACnet subscriber

Configuration via configuration

tool, maximum of 32 characters

KSB PumpDrive

NOTE

If the field bus is only used for monitoring purposes, the Control Point parameter

(3-6-2) is set to Local.

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1.7 Operation of frequency inverter with BACnet MS/TP

The frequency inverter fulfils device profile B-ASC as per BACnet standard ANSI/ASHREA135-2010. All BACnet characteristics required for

the device type and interoperability range are fulfilled. Additional properties are also supported. All supported capabilities of the BACnet

module are listed in the “Protocol Implementation Conformance Statement” (PICS).

Data exchange The data sharing objects used and mapping of the PresentValue characteristics to frequency inverter parameters are summarised in the

following table.

Table6: Data sharing objects in the frequency inverter: System parameters (PD2-A-…)

Object name Object type Unit/StateTexttable

KSB

number

Description Value range Comment

PD2-A-RemoteControl 5 (BV) 2 3-6-2 Control Point 0 = Local The control point selected via the HMI

has equivalent priority with the field

bus (the value written last is valid); the

control point selected via the digital

input has higher priority.

1 = Field Bus

PD2-A-RemoteFeedback 5 (BV) 2 3-6-3 Actual Value Source 0 = Local The actual value source selected via the

HMI has equivalent priority with the

field bus (the value written last is

valid); the analog input actual value

source has higher priority.

1 = Field Bus

PD2-A-StartStop 5 (BV) 2 1-3-1 System Start / Stop 0 = Stop The control point must reference the

field bus for writing.

1 = Start

PD2-A-Feedback 2 (AV) PERCENT 1-2-3-1 If actual value source =

field bus

- The actual value source must reference

the field bus for writing.

PD2-A-Setpoint 2 (AV) PERCENT 1-3-2 Setpoint (Closed-loop

Control)

- The control point must reference the

field bus for writing.

PD2-A-ControlPoint 2 (AV) PERCENT 1-3-3 Control Value (Open-loop

Control)

- -

PD2-A-ControllerMode 19 (MV) 3 3-6-1 Type of Control 1 = Open-loop Control The HMI has equivalent priority with

the field bus (the value written last is

valid).

2 = Discharge Pressure

3 = Inlet Pressure

4 = Differential Pressure

5 = Differential Pressure

(Sensorless)

6 = Flow Rate

7 = Temperature

(Cooling)

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Object name Object type Unit/StateTexttable

KSB

number

Description Value range Comment

PD2-A-ControllerMode 19 (MV) 3 3-6-1 Type of Control 8 = Temperature

(Heating)

The HMI has equivalent priority with

the field bus (the value written last is

valid).

9 = Fill Level/Draining

10 = Fill Level/Filling

11 = Flow Rate

(Sensorless)

PD2-A-

DynamicPressureComp

19 (MV) 19 - Dynamic pressure

compensation function

1 = OFF The HMI has equivalent priority with

the field bus (the value written last is

valid).

2 = Speed

3 = Flow Rate

PD2-A-DischargePressure 0 (AI) BARS 1-2-3-3 System Discharge Pressure - -

PD2-A-SuctionPressure 0 (AI) BARS 1-2-3-2 System Suction Pressure - -

PD2-A-

DifferentialPressure

0 (AI) BARS 1-2-3-4 System Differential

Pressure

- -

PD2-A-Flow 0 (AI) CUBIC-METERS-PER-

HOUR

1-2-3-5 Flow System - -

PD2-A-Temperature 0 (AI) DEGREES-CELSIUS 1-2-3-7 Temperature - -

PD2-A-Level 0 (AI) METERS 1-2-3-6 System Level - -

PD2-A-MaxPumps 2 (AV) NO-UNITS 3-7-2 maxAllowedPumps - The HMI has equivalent priority with

the field bus (the value written last is

valid).

PD2-A-ExecPumpChange 5 (BV) 2 1-3-5 execute PumpChange - -

PD2-A-ExecPipeFlush 5 (BV) 2 1-3-7 Immediate Pipe Flushing - -

PD2-A-CombinedAlarm 13 (BI) 5 - Collective alert, system - -

PD2-A-CombinedWarning 13 (BI) 1 - Collective warning,

system

- -

NOTE

In the object name, # must be replaced with the pump number of the respective pump set; see menu 3-12-5-4.

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Table7: Data sharing objects in frequency inverter: Pump parameters (PD2-#-…)

Object name Object

type

Unit/StateTexttable

KSB

number

Description Value range Comment

PD2-#-PumpState 13 (MI) 5 1-7-10 PumpState 1 = Not Connected -

2 = Stopped

3 = Running

4 = Running Down

5 = Starting Up

6 = Disabled

7 = Disabled In Operation

8 = Idle Mode

9 = Disabled, Starting Up

10 = Disabled, Running

Down

PD2-#-CombinedAlarm 3 (BI) 1 - Collective alert, frequency

inverter

- -

PD2-#-CombinedWarning 3 (BI) 1 - Collective alert, frequency

inverter

- -

PD2-#-OperatingMode 19 (MV) 18 1-3-8 Operating Mode 1 = OFF The control point must reference the

field bus for writing.

2 = M

3 = AUTO

PD2-#-ControlPointMan 0 (AI) REVOLUTIONS-PER-

MINUTE

1-3-4 Control Value (Manual) - The control point must reference the

field bus for writing.

PD2-#-Speed 0 (AI) REVOLUTIONS-PER-

MINUTE

1-2-1-1 Speed - -

PD2-#-ShaftPower 0 (AI) KILOWATTS 1-2-1-3 Pump Input Power - -

PD2-#-PowerConsumption 0 (AI) KILOWATTS 1-2-1-4 Pump Set Input Power - -

PD2-#-MotorCurrent 0 (AI) AMPERES 1-2-1-5 Motor Current - -

PD2-#-MotorVoltage 0 (AI) VOLTS 1-2-1-6 Motor Voltage - -

PD2-#-Frequency 0 (AI) HERTZ 1-2-1-7 Output Frequency - -

PD2-#-DcLinkVoltage 0 (AI) VOLTS 1-2-1-8 DC Link Voltage - -

PD2-#-Torque 0 (AI) NEWTON-METERS 1-2-1-11 Motor Torque - -

PD2-#-SuctionPressure 0 (AI) BARS 1-2-2-1 Pump Suction Pressure - -

PD2-#-DischargePressure 0 (AI) BARS 1-2-2-2 Pump Discharge Pressure - -

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Object name Object

type

Unit/StateTexttable

KSB

number

Description Value range Comment

PD2-#-DiffPressure 0 (AI) BARS 1-2-2-3 Pump Differential

Pressure

- -

PD2-#-Flow 0 (AI) CUBIC-METERS-PER-

HOUR

1-2-2-4 Pump Flow Rate - -

PD2-#-kWhCounter 0 (AI) KILOWATT-HOURS 1-4-1-1 Energy Meter (kWh) - -

PD2-#-OperatingTimeFC 0 (AI) HOURS 1-4-2-1 Frequency Inverter

Operating Hours

- -

PD2-#-

OperatingTimePump

0 (AI) HOURS 1-4-2-3 Pump Operating Hours - -

PD2-#-PowerOnCount 0 (AI) NO-UNITS 1-4-2-5 Number of Starts - -

PD2-#-NextMainenance 0 (AI) HOURS 1-6-1 Time to Service - -

PD2-#-ExecFunctionRun 5 (BV) 2 1-3-2 executeFunctionRun - -

PD2-#-ResetFault 5 (BV) 2 - Fault acknowledgement/

reset

- -

Table8: Properties of data sharing objects

Data Sharing Object Properties

Event_State As the PumpDrive does not support event reporting, the Event_State is always “NORMAL”.

Out_Of_Service Can be controlled from the BACnet side. If Out_Of_Service TRUE (1), the parameter is no longer overwritten by BACnet and

Present_Value is no longer updated from the PumpDrive side.

Reliability If process values are formed via analog inputs and the analog outputs are outside the measuring range, Reliability is set to

“UNRELIABLE_OTHER” (13). Otherwise, Reliability is “NO_FAULT_DETECTED” (1).

Status flags

IN_ALARM FALSE (0) if Event_State = NORMAL (0), otherwise TRUE (1)

IN_FAULT FALSE (0) if Reliability = "NO_FAULT_DETECTED", otherwise TRUE (1)

OVERRIDDEN TRUE (1) indicates that Present_Value cannot be accepted by BACnet services.

OUT_OF_SERVICE Set in relation to the Out Of Service property; used only on the BACnet side.

Relinquish_Default Standard value if all priority values for Present_Value have the value ZERO. If the OVERRIDDEN status flag = TRUE, the active value is

accepted in PumpDrive.

COV_Increment COV_Increment indicates the minimum required change to the Present_Value property for a COVNotification to be sent to the

respectively configured COVClients.

Notification_Class FALSE (0): COV is deactivated

TRUE (1): COV is activated.