MCD Remote Operator Introduction
MG.17.E5.02 - VLT®
is a registered Danfoss trademark 1
OPERATING INSTRUCTIONS: MCD REMOTE OPERATOR
Order Codes: 175G9004 (for MCD 200)
175G3061 + 175G9000 (for MCD 500)
175G3061 (for MCD 3000)
1. Introduction
1.1. 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 RS485 communications when installing and using
this equipment.
1.2. General Description
The Remote Operator can be used with MCD 200, MCD 3000 and MCD 500 soft starters, and offers the
following functionality:
Operational control (Start, Stop, Reset, Quick Stop)
Starter status monitoring (Ready, Starting, Running, Stopping, Tripped)
Performance monitoring (motor current, motor temperature)
Trip code display
4-20 mA analog output (motor current)
Optional RS485 network connection
The Remote Operator can act as a gateway device for connection to an RS485 serial communications
network, allowing remote control of a motor from an RS485 network using Modbus RTU or standard AP
ASCII communications protocol. For further information, please refer to the Modbus Module
Instructions.
Installation MCD Remote Operator
MG.17.E5.02 - VLT® is a registered Danfoss trademark 2
2. Installation
This section describes how to install the Remote Operator for basic control and monitoring of a soft
starter. The Remote Operator is pre-configured to control a soft starter once control supply power is
applied to both devices. For basic operation, no parameter adjustments are required on the Remote
Operator or the soft starter.
In order to use the Remote Operator's 4-20 mA analog output to monitor motor current, follow the
instructions in the section 4-20 mA Analog Output.
2.1. Mounting
The Remote Operator is rated IP54 or NEMA 12 when mounted correctly in accordance with these
instructions. It is intended for use on the flat surface of a panel, with all external wiring connected from
behind the panel.
The Remote Operator is supplied with a mounting bracket and four fasteners. The built-in gasket seal
guarantees protection from outside the panel.
Select the panel location of the Remote Operator. The required panel cutout is 92 mm x 92 mm. Place
the Remote Operator through the cutout and locate the mounting bracket at the rear of the panel onto
the four studs. Use the four fasteners to tighten the mounting bracket up to the rear of the panel.
For use on a flat surface of a NEMA 1 or NEMA 12 enclosure.
177HA374.11
Fasteners (x 4)
Mounting bracket
Universal panel cutout
(92 mm x 92 mm)
Remote Operator
2.2. Connection
The Remote Operator requires a minimum of three electrical connections - the external power supply,
the chassis earth and the RS485 Starter port. All external wiring, except the chassis earth (M4 stud
provided), is connected to spring operated clamp connector terminals with a maximum wire size of
2.5 mm
2
. No special tools are required.
Once the Remote Operator is mounted, connect it to the starter as illustrated.
2.3. Grounding and Shielding
Twisted pair data cable with earth shield is recommended. The cable shield should be connected to the
GND device terminal at both ends and one point of the site protective earth.
2.4. Termination Resistors
In long cable runs prone to excessive noise interference, termination resistors should be installed
between the data lines at both ends of the RS485 cable. This resistance should match the cable
impedance (typically 120 Ω). Do not use wire wound resistors.
MCD Remote Operator Installation
MG.17.E5.02 - VLT® is a registered Danfoss trademark 3
2.5. For use with MCD 200
In order to use the Remote Operator with MCD 200 soft starters, a Remote Operator Module must first
be installed to the starter using the following steps:
1. Remove control power and mains supply from the soft starter.
2. Attach the Remote Operator Module to the side of the soft starter as illustrated.
RS485
177HA264.11
Remove mains and control voltage from the soft starter before attaching or removing
accessories. Failure to do so may damage the equipment.
Once the Remote Operator Module has been installed, wire between the Remote Operator and the
module as follows:
177HA265.11
MCD 200 REMOTE
OPERATOR
RS485
SERIAL PORT
68
61
69
B1B2B3 B6
B7 B8
GND
RS485 RS485
GND
+
-GND
+
-
MCD NETWORK
-
+
REMOTE
INTERFACE
4-20 mA
ANALOGUE OUTPUT
(MOTOR CURRENT)
B10
B11
4-20 mA
-
+
SUPPLY
SUPPLY VOLTAGE
18 ~ 30 VAC / VDC
12
POWER
~/
~/
-
A1
N2
For the Remote Operator to accept serial commands, a link must be fitted across terminals A1-N2 on
MCD 200 starters.
Installation MCD Remote Operator
MG.17.E5.02 - VLT® is a registered Danfoss trademark 4
2.6. For use with MCD 500
In order to use the Remote Operator with MCD 500 soft starters, a Modbus Module must first be installed
to the starter using the following steps:
1. Remove control power and mains supply from the soft starter.
2. Attach the Modbus Module to the side of the starter as illustrated.
177HA5 31.10
Remove mains and control voltage from the soft starter before attaching or removing
accessories. Failure to do so may damage the equipment.
3. The DIP switches on the Modbus Module must be set as follows:
1 Protocol = AP ASCII
2 Address = 20
3 Baud Rate = 9600
4 Parity = No parity
5 Timeout = No timeout
123456
ON
123456
ON
+16
+8
+4
+2
+1
0
0
0
0
0
DIP SWITCH A DIP SWITCH B
177HA543.10
1
2
3
4
5
4. Apply control power to the soft starter. The LED on the Modbus module should flash.
5. 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 and 25 to 18.
6. Connect the RS485 cable between the Remote Operator and the Modbus Module. Apply
control voltage to the Remote Operator.
177HA535.10
MCD 500
(Auto On mode)
REMOTE OPERATOR
RS485
Serial Port
B8
B7
B6
B1B2B3 B6
B7 B8
RS485 RS485
4-20 mA
Analog Output
B10
B11
4-20 mA
Supply Voltage
18~30 VAC/VDC
12
PO
+ GND -
- GND +- GND ++ - ~/+ ~/-
MODBUS MODULE
17
18
25
Stop
COM
Reset
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