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MCD Modbus Module Instructions Important User Information
MG17F702 - VLT® is a registered Danfoss trademark 1
INSTALLATION INSTRUCTIONS: MCD MODBUS MODULE
Order Code: 175G9000
1. Important User Information
Observe all necessary safety precautions when controlling the soft starter remotely. Alert
personnel that machinery may start without warning.
It is the installer's responsibility to follow all instructions in this manual and to follow correct
electrical practice.
Use all internationally recognised standard practice for RS-485 communications when installing
and using this equipment.
2. Installation
CAUTION
Remove mains and control voltage from the soft starter before attaching or removing
accessories. Failure to do so may damage the equipment.
2.1. Installation Procedure
1. Remove control power and mains supply from the soft starter.
2. Attach the Modbus Module to the starter as shown.
3. Apply control power to the soft starter.
2.2. Physical installation
1. Fully pull out the top and bottom retaining clips on the module.
2. Line up the module with the comms port slot.
3. Push in the top and bottom retaining clips to secure the module to the starter.
177HA528.11
Remove the MCD Modbus Module using the following
procedure:
1. Take the module off-line.
2. Remove control power and mains supply from the
soft starter.
3. Disconnect all field wiring from the module.
4. Fully pull out the top and bottom retaining clips on
the module.
5. Pull the module away from the soft starter.
177HA378.11
Installation MCD Modbus Module Instructions
MG17F702 – VLT® is a registered Danfoss trademark 2
2.3. Adjustment
Network communication parameters must be set on the Modbus Module. DIP switch settings take
effect on the power-up of the Modbus Module via the soft starter.
A
B
177HA262.12
Protocol
Address
Baud rate
Parity
Timeout (seconds)
DIP switch
Example: Address = 24
2.4. Master Configuration
For standard Modbus 11-bit transmission, the Master must be configured for 2 stop bits with No
Parity and 1 stop bit for odd or even parity.
For 10-bit transmission, the Master must be configured for 1 stop bit.
In all cases, the Master baud rate and slave address must match those set on the Modbus Module
DIP switches.
MCD Modbus Module Instructions Connection
MG17F702 - VLT® is a registered Danfoss trademark 3
3. Connection
MCD 200: For the MCD Modbus Module to accept serial commands, a link must be tted across
terminals A1-N2 on the soft starter.
In order for the MCD 500 to accept commands from the serial network, the soft starter must be in
Auto On mode and links must be fitted to terminals 17, 18 and 25, 18.
In Hand On mode, the starter will not accept commands from the serial network but the starter's
status can still be monitored.
MCD 200 MCD 500
177HA326.13
B8 B7 B6
GND -
+
A1
N2
B8 B7 B6
+ GND -
25
17
18
177HA532.11
MCD 200 MCD 500 (Auto On mode)
MCD Modbus Module – RS-485 serial port 17, 18: Stop
RS-485 connection onto Modbus network 25, 18: Reset
MCD Modbus Module – RS-485 serial port
RS-485 connection onto Modbus network
N.B.!:
If MCD 500 parameter 3-2
Comms in Remote
is set to Disable Comms in Remote, the
starter will not accept start or stop commands from the serial network (the starter will
still accept reset commands and allow status monitoring).
4. LEDs
The Network Status LED (1) indicates the state of the communications link between the module
and the network. LED operation is as follows:
177HA263.12
Off No connection or soft starter not powered up
On Communication active
Flashing Communication inactive
N.B.!:
If communication is inactive, the soft starter may trip if the Communications Timeout
function has been set on the module. When communication is restored, the soft starter
will require a Reset.

Produktspecifikationer

Varumärke: Danfoss
Kategori: Inte kategoriserad
Modell: VLT MCD 202

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