MCD Soft Starter Remote Operator
8 MG.17.E2.02 – VLT is a registered Danfoss trademark
4-20 mA Analo
ue Output
Overview
The Remote Operator has a 4-20 mA Analogue
Output for monitoring motor current. The 4-20 mA
output is available on terminals B10 and B11.
The analogue output signal spans from 4 mA when
the motor current is zero (i.e. soft starter is not
running) to 20 mA when the motor current is 125% of
the Motor FLC setting in the Remote Operator
(Parameter 6).
NB!:
The 4-20 mA output is available only when the
Remote Operator is connected to MCD 3000
and MCD 202 models.
Calibration
The Remote Operator Motor FLC parameter
(Parameter 6) must be adjusted to match the Motor
FLC setting in the soft starter. The lower end of the
analogue output signal can be calibrated using the
Remote Operator Analogue Output 4 mA Offset
parameter (Parameter 7). This is set to give a 4 mA
output signal when the motor current is zero.
The 4-20 mA Analogue Output must only be used for
motor current monitoring and metering. It is not
designed for process signal control use.
NB!:
The Remote Operator uses only one Motor
FLC setting. This function is not suitable for
applications using both MCD 3000 primary and
secondary parameter sets.
Programming
When the 4-20 mA output is being used, the Remote
Operator's Motor FLC and Analogue Output 4 mA
Offset parameters (Parameters 6 and 7) must be set
to suit the application. Programming can only be
carried out while the soft starter is not running.
Programming Procedure
1. Enter Programming Mode by holding down the
Data/Prog Pushbutton for four seconds. The
default value of the first parameter will be
displayed.
2. Use the Data/Prog Pushbutton to advance to the
next parameter.
3. Use the Stop/+ and or Reset/- pushbuttons to
adjust parameter values.
Programming Mode is exited when the Data/Prog
Pushbutton is pressed after Parameter 8.
Par.
No
Parameter
Default
Setting
Adjustable Range
1 RS485
Network
Baud Rate
4
2 RS485
Network
Satellite
Address
20
3 RS485
Network
Timeout
0
4 RS485
Network
Protocol
1
5 Modbus
Protocol
Parity
0
6 Motor FLC
(A)
10 1 to 2868
7 Analogue
Output
4 mA
Offset (%)
100 80 to 120
8 Start/Stop/
Quick Stop
disable
0
0 = Remote Operator
start, stop, quick stop
function enabled.
1 = Remote Operator
start, stop, quick stop
function enabled.
2 = Remote Operator
start, stop, quick stop
function disabled. **
3 = Remote Operator
start, stop, quick stop
function disabled. **
Parameters 1 to 5 are not relevant for the 4-20 mA
output. See the Modbus Module Operating
Instructions for details.
Remote Operator Reset/- Pushbutton is always
enabled.
NB!:
There is a 20 second timeout when the
Remote Operator is in Programming Mode.
Programming Mode will automatically close if no input
is registered for 20 seconds. Any changes already
made will be saved.
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