EF
Installation Guide
UD70
MD29
Second Processor Options
for Unidrive and Mentor II
Part Number: 0460-0098
Issue Number: 2
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Safety Information
The option card and its associated drive are intended as components for professional
incorporation into complete equipment or systems. If installed incorrectly the drive may
present a safety hazard. The drive uses high voltages and currents, carries a high level
of stored electrical energy, and is used to control mechanical equipment that can cause
injury.
Close attention is required to the electrical installation and the system design to avoid
hazards either in normal operation or in the event of equipment malfunction. System
design, installation, commissioning and maintenance must be carried out by personnel
who have the necessary training and experience. They must read this safety information
and this Installation Guide carefully.
Careful consideration must be given to the functions of the drive and option card which
might result in a hazard, either through their intended functions, e.g. auto-start, or through
incorrect operation due to a fault or trip, e.g. stop/start, forward/reverse, maximum speed,
loss of a communications link.
In any application where a malfunction of the drive or option card could lead to damage,
loss or injury, a risk analysis must be carried out, and where necessary, further measures
taken to reduce the risk. To ensure mechanical safety, additional safety devices such as
electro-mechanical interlocks may be required. The Drive must not be used in a safetycritical application without additional high-integrity protection against hazards arising
from a malfunction.
General Information
The manufacturer accepts no liability for any consequences resulting from inappropriate,
negligent or incorrect installation or adjustment of the optional operating parameters of
the equipment or from mismatching the Drive with the motor.
The contents of this User Guide are believed to be correct at the time of printing. In the
interests of a commitment to a policy of continuous development and improvement, the
manufacturer reserves the right to change the specification of the product or its
performance, or the contents of the User Guide, without notice.
All rights reserved. No part of this User Guide may be reproduced or transmitted in any
form or by any means, electrical or mechanical including photocopying, recording or by
any information storage or retrieval system, without permission in writing from the
publisher.
Copyright
Issue Code:
Hardware:
Firmware:
© 21/1/02 Control Techniques Drives Ltd
2
UD70 All Issues, MD29 Issue 3 and later
N/A
Contents
1
Mechanical Installation
1
1.1
1.2
Unidrive and UD70
Mentor II and MD29/MD29AN
1
3
2
Electrical Installation
5
2.1
2.2
2.3
2.4
2.5
2.6
2.7
UD70
MD29
MD29AN
RS232 Port Connections
RS485 Port Connections
I/O Box Port Connections (MD29 Only)
Digital I/O Connections
5
5
6
6
6
8
8
3
RS485 Port Configuration
9
3.1
3.2
3.3
3.4
Node Address
Data Rate
RS485 Port Communications Modes
Storing configuration parameters
UD70/MD29 Installation Guide
Issue Number: 2
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10
10
12
1
NOTE
1.1
Mechanical Installation
Before attempting to install option modules or cards, ensure that the Unidrive
or Mentor II is switched off. AC Drives should be left for 5 minutes to ensure
that the DC link capacitors have completely discharged.
Unidrive and UD70
•
Slide the UD70 module under the display panel of the Unidrive, and push the
module in until the connector locates with the plug inside the Unidrive.
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UD70/MD29 Installation Guide
Issue Number: 2
•
Apply firm pressure, and the module will click securely into place.
•
To remove the UD70, pull firmly on the black tab, and the module will
disengage from the connector.
Do not attempt to remove the UD70 module while the Unidrive is still powered
up, as this may cause damage to the Unidrive.
WARNING
UD70/MD29 Installation Guide
Issue Number: 2
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1.2
Mentor II and MD29/MD29AN
The MD29 is fitted onto the 40-way pin header (PL1) on the MDA2B circuit board.
The supplied mounting pillars should be attached to the MDA2B on the Mentor II.
•
Tilt the MD29 at an angle and locate the first few pins into the MD29 header.
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UD70/MD29 Installation Guide
Issue Number: 2
•
NOTE
Tilt the board to horizontal to engage the rest of the pins. Press firmly
downwards to firmly fix the MD29 to the header and 4 mounting pillars.
Take care when locating the board onto this connector - do not force it on.
Excessive force may bend and break the pins of the header.
When removing an MD29, unsnap the MD29 from the pillars before gently working
the MD29 off the header. Do not tilt the MD29 excessively to one side, as this may
bend and break the end groups of pins on the header.
Do not attempt to remove the MD29 while the Mentor II is still powered up, as
this may cause damage to the Mentor II.
WARNING
UD70/MD29 Installation Guide
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2
Electrical Installation
2.1
UD70
The UD70 provides a dedicated RS232 programming port (Connector C) and a
general purpose RS485 communications port (Connector D)..
A B
C D
Connectors A and B provide the connectors for high speed fieldbus communication
options, if fitted. Refer to the appropriate fieldbus option User Guide for full fieldbus
connection details.
2.2
MD29
The MD29 provides a dedicated RS232 programming port (Connector SK2) and a
general purpose RS485 communications port (Connector PL1). In addition, the
MD29 also has a dedicated RS485 port (Connector TB1) for use with the Control
Techniques I/O Box.
SW1
SK2
MD29
1
PL1
5
TB1
5
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SK2
UD70/MD29 Installation Guide
Issue Number: 2
2.3
MD29AN
The MD29AN provides a dedicated RS232 programming port (Connector SK2) and
a general purpose RS485 communications port (Connector PL1). In addition, the
MD29 also has a dedicated CTNet port (PL2).
SK1
MD29AN
PL1
2.4
PL2
SK2
RS232 Port Connections
The pin connections for the RS232 port are given in the table below. The RS232
port can be connected to a 9 way serial port using a 9-way one-to-one ribbon cable
lead.
2.5
Pin
Function
Description
2
TxD
Transmit line
3
RxD
Receive line
5
0V
0V
RS485 Port Connections
The pin connections for the RS485 port are given in the table below 0VSC is
completely isolated from the main Unidrive and Mentor II 0V.
Pin
Function
Description
1
0VSC
0VSC
2
TxA
/Tx
Inverted transmit line
3
RxA
/Rx
Inverted transmit line
6
TxB
Tx
Transmit line
7
RxB
Rx
Receive line
UD70/MD29 Installation Guide
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Isolated 0V for serial communications link.
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2.5.1
4 Wire RS485 Network
The diagram below shows the connections required for a 4 wire RS485 network,
using a master controller with an RS485 port. The UD70 and MD29 can be
configured to act as master controllers, but this requires DPL programming to
control the network.
S la ve
S la ve
U D 7 0, M D 2 9,
U n id riv e, M e nto r II
U D 7 0, M D 2 9,
U n idriv e, M en to r II
0V
0V
T x B Tx A R xB R x A
1
M a ste r
2
6
3
7
T x B T xA R x B R xA
1
2
6
3
7
0V
Tx B
Tx A
RxB
RxA
12 0 Ω 0.2 5 W
te rm in atio n re sisto rs
An RS232-to-RS485 converter is required to allow a standard PC serial port to
communicate with a 4 wire RS485 network.
2.5.2
2 Wire RS485 Network
The diagram below shows the connections required for a 2 wire RS485 network,
using a master controller with an RS485 port. The UD70 and MD29 can be
configured to act as master controllers, but this requires DPL programming to
control the network.
Slave
Slave
UD70, MD29,
Unidrive
Commander SE
0V TxB TxA RxB RxA
1
Master
2
6
3
7
0V
3
TxRxB
7
TxRxA
2
0V
TxB
TxA
RxB
RxA
120Ω 0.25W
termination resistor
An RS232-to-RS485 converter with “intelligent transceiver switching” (also known
as “magic” RS485 converters) is required to allow a standard PC serial port to
communicate with a 2 wire RS485 network. An example of a “magic” converter is
the MA485F converter from Amplicon.
NOTE
A “magic” converter is not required is the master contoller has an RTS control
output. This output is enabled when the master is transmitting, and disabled
when the master is not transmitting. Control Techniques software packages
(UniSoft, MentorSoft and SystemWise) do NOT switch the RTS line.
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UD70/MD29 Installation Guide
Issue Number: 2
2.6
I/O Box Port Connections (MD29 Only)
The I/O Box port is marked “PL2” and is only available on the MD29. The terminal
connections are shown in the table below. Operation of this port is automatic, and
no configuration is necessary.
Pin
1
NOTE
2.7
Function
0V
Description
0V
0V
Transmit line
2
TxB
Tx
3
/TxA
/Tx
Inverted Transmit line
4
RxB
Rx
Receive line
5
/RxA
/Rx
Inverted Receive line
To use the I/O Box with UD70 or MD29AN, connect it to the RS485 port, and
select Mode 10 communications.
Digital I/O Connections
The RS485 connector has 2 TTL digital inputs and 1 TTL digital output. They are
used in conjunction with the Timer/Counter unit. (For further details, refer to the
User guide for the UD70 or MD29.)
NOTE
The 0VSC is isolated from the Unidrive or Mentor II 0V, and should not be used
as the reference 0V for the TTL digital inputs and output.
If a digital input is open-circuit or connected to +5V, this will be read by #86.01
(input 0) or #86.02 (input 1) as logic 0. These parameters will change to logic 1
when the inputs are connected to 0V Digital on pin 9.
The digital output will give +5V when #86.03 is set to logic 0, and 0V when set to
logic 1. The digital output is rated to a maximum of 15mA. The maximum length of
cable that should be connected to these terminals is 0.5 metres, so buffering will be
required for longer lengths of cable, and for interfacing to different logic levels.
NOTE
The Digital inputs and output must be connected to 0V Digital (pin 9), NOT
OVSC (pin 1). The inputs and output will not work properly if connected to
OVSC, as pin 1 is isolated from the Drive. Noise generated along the screen
of the serial communications cable may cause spurious operation, and
damage to the UD70 or MD29 may result.
UD70/MD29 Installation Guide
Issue Number: 2
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3
RS485 Port Configuration
The RS485 port can be used to communicate with the Drive using Control
Techniques' standard software communications packages such as UniSoft,
MentorSoft, CTFile and Systemwise. (Refer to the Help file in Unisoft, MentorSoft,
etc. for connection details.) The ANSI protocol is the standard protocol used by the
Control Techniques' software packages, but Modbus RTU and ASCII modes are
also supported as slave nodes only.
The RS485 port is configured by setting certain user parameters on the Unidrive or
Mentor II. These control individual features about the port. Any changes take effect
when the configuration parameters are stored and the UD70 or MD29 is reset.
The following parameters used to configure the RS485 port.
Function
3.1
Unidrive
(UD70)
Mentor II
(MD29/MD29AN)
Node Address
#17.05
#14.01
Data Rate
#17.07
#14.03
Serial Comms Mode
#17.06
#14.02
Pointer 1
#17.08
#11.09
Pointer 2
#17.09
#11.10
Scaling Factor
#17.10
#11.11
Global Trip Enable
#17.14
#14.07
RS485 Trip Enable
#17.15
#14.08
Node Address
Unidrive:
Range:
#17.05
Mentor II:
#14.01
11 to 99, excluding 00 to 09, 10, 20, 30, 40, etc for ANSI.
1 to 99 for Modbus RTU and Modbus ASCII
Default:
11
Every node on an ANSI or Modbus network MUST be assigned a unique serial
address. Changes to the node address will not take effect until the parameters
have been stored, and the UD70 or MD29 has been reset.
The serial address ensures that only the intended node responds to commands
issued by the network master controller. Each node should be assigned a unique
address BEFORE it is connected to the RS485 network.
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UD70/MD29 Installation Guide
Issue Number: 2
3.2
Data Rate
Unidrive:
#17.07
Mentor II:
#14.03
Range:
300 to 38400 bits per second
Default:
4800
Every node on an ANSI or Modbus network must be configured to operate at the
same data rate. Set the appropraite value as shown in the table below to configure
the RS485 port data rate.
3.3
Data Rate
(bits/sec)
Unidrive
Mentor II
300
300
3
600
600
6
1200
1200
12
2400
2400
24
4800
4800
48
9600
9600
96
19200
19200
192
38400
38400
38
RS485 Port Communications Modes
Unidrive:
#17.06
Mentor II:
#14.02
The serial communications mode selector determines the mode of operation of the
RS485 serial port, and the protocol supported. Only slave modes are described
here. (Modes 6 to 9, 11 and 12 require DPL code to control the RS485.)
3.3.1
Standard CT ANSI Protocol
Mode 1 - 4 Wire ANSI Slave Mode (Default)
Mode 5 - 2 Wire ANSI Slave Mode
The UD70 and MD29 will communicate using the Control Techniques' standard
ANSI protocol with a 4-wire or 2-wire connection. This mode allows the Unidrive or
Mentor II to communicate with standard CT software packages, such as UniSoft,
MentorSoft, SystemWise, etc.
Menu 0 parameters are not accessible through a UD70 or MD29. Refer to the
User's Guide for MD29 or UD70 for a detailed description of the ANSI protocol.
3.3.2
Modbus RTU
Mode 13 - 4 Wire Modbus RTU Slave Mode
Mode 15 - 2 Wire Modbus RTU Slave Mode
The UD70 and MD29 will communicate using the Modicon Modbus RTU protocol
with a 4-wire or 2-wire connection. The data frame used for Modbus RTU is 1 start
bit, 8 data bits, no parity, 2 stop bits. (Even parity with 1 stop bit is NOT currently
supported.)
The following MOdbus RTU commands are supported:
FC3
PRESET SINGLE REGISTER
FC6
PRESET MULTIPLE REGISTERS
FC16
READ MULTIPLE REGISTERS
The maximum number of registers that can be transferred on a single message is
limited to 20, and the range of allowed node addresses is limited from 1 to 99.
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3.3.3
Modbus ASCII
Mode 14 - 4 Wire Modbus ASCII Slave Mode
Mode 16 - 2 Wire Modbus ASCII Slave Mode
The UD70 and MD29 will communicate using the Modicon Modbus ASCII protocol
with a 4-wire or 2-wire connection. The data frame used for Modbus RTU is 1 start
bit, 7 data bits, no parity, 2 stop bits.
The following Modbus ASCII commands are supported:
FC3
PRESET SINGLE REGISTER
FC6
PRESET MULTIPLE REGISTERS
FC16
READ MULTIPLE REGISTERS
The maximum number of registers that can be transferred on a single message is
limited to 20, and the range of allowed node addresses is limited from 1 to 99.
3.3.4
Master/Slave
Mode 2 - Master Mode
Mode 3 - Slave Mode
In Mode 2, the node acts as a master, and continuously broadcasts a source
parameter, as defined by the Pointer parameter, from the RS485 port at a fixed
data rate of 9600 bits/sec. The value of the source parameter is scaled to ±16000.
In Mode 3, the node acts as a slave to receive the continuous data stream
transmitted by a Mode 2 master. The incoming data is multiplied by the scaling
parameter, and written to the destination parameter, as defined by the Pointer
parameter.
M a ste r N od e ( M o de 2)
P o in te r 1
U n id riv e o r
M e n to r II
p a ra m e te rs
S lav e N od e ( M o de 3)
P o in te r 1
S c a le to + /16000
S c a lin g
p ara m ete r
R S 4 8 5 p o rt
R S 4 8 5 p o rt
7 3 1 6 2
7 3 1 6 2
U n id riv e o r
M e n to r II
p a ra m e te rs
If the serial communications link is broken, the slave node can be made to trip. This
is done by setting the Global Trip Enable and RS485 Trip Enable parameters.
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UD70/MD29 Installation Guide
Issue Number: 2
3.3.5
Cascade
Mode 4 - Cascade Mode
Mode 4 provides allows UD70 and/or MD29 RS485 ports to be “cascaded”. This
mode is similar to the Master/Slave mode, except that each node can be a slave to
an “upstream” node, AND a master to a “downstream” node.
Pointer 1
Pointer 2
Unidrive or
Mentor II
parameters
Scaling
parameter
Scale to +/16000
1
RS485 port
7 3 1 6 2
Receive data from
previous node
3.3.6
Transmit data to
next node
I/O Box Mode (UD70 and MD29AN only)
Mode 10 - I/O Box Mode
Unlike the MD29, the UD70 and MD29AN do not have a dedicated port for use with
the I/O Box. The general purpose RS485 port can be configured to communicate
directly with an I/O Box by configuring the RS485 port to use Mode 10
communications.
3.4
Storing configuration parameters
In all cases, the configuration parameters must be stored, and the UD70 or MD29
reset before changes will take effect.
3.4.1
Unidrive
•
•
3.4.2
To store changes in menu 17 parameters, set #MM.00 to 1000 and press the
red RESET button.
To reset the UD70, set #MM.00 to 1070 and press the red RESET button.
Mentor II
•
•
Ensure that the Mentor II is disabed
To store changes in menu 11 and 14 parameters, set #MM.00 to 1 and press
RESET. This will also reset the MD29.
UD70/MD29 Installation Guide
Issue Number: 2
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