MCO 305 Design Guide
__ Parameter Reference __
¾
default setting
[ ]
value for use in communication via serial communication port
178
MG.33.L4.02 – VLT
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is a registered Danfoss trademark
Initialization to Default Settings
Initialize the frequency converter to default setting in two ways:
Recommended initialization (via par. 14-22):
1.
Select par 14-22
2.
Press [OK]
3.
Select “Initialization”
4.
Press [OK]
5.
Cut off the mains supply and wait until the
displays turns off.
6.
Reconnect the mains supply – the frequency
converter is now reset.
NB!
MCO 305 programs and arrays are not
affected.
Par. 14-22 initializes all except:
14-50
RFI 1
8-30
Protocol
8-31
Address
8-32
Baud Rate
8-35
Minimum Response Delay
8-36
Max Inter-char Delay
15-00 to 15-05
Operating Data
15-20 to 15-22
Historic log
15-30 to 15-32
Fault log
Manual initialization:
1.
Disconnect from mains and wait until the
display turns off.
2.
Press [Status] – [Main Menu] – [OK]
at the same time:
3.
Reconnect mains supply while pressing the
keys.
4.
Release the keys after 5 s.
5.
The frequency converter is now programmed
according to default settings.
This method initializes all except:
15-00
Operating Hours
15-03
Power-up’s
15-04
Over temp’s
15-05
Over volt’s
NB!
:
When you carry out manual initialization, you also reset serial communication and fault log
settings.
And all MCO 305 programs and arrays are deleted!
Reading and Writing Parameters
From the application program there is read access to all FC 300 parameters including MCO 305 parameters
and application parameters (group 19-**). There are two commands for reading parameters:
GET is used to read all MCO 305 related parameters i.e. groups 19-**, 32-**, 33-**, and 34-**.
GETVLT is used to read all other FC 300 parameters.
There is also write access to FC 300 parameters but with some restrictions: Parameter groups 16-** and
34-** are read only and can thus not be changed. Some FC 300 parameters can only be changed while the
drive is stopped and can thus not be changed during operation, see FC 300 design guide for a complete
description of all parameters.
There are two commands for writing parameters:
SET is used to write to all MCO 305 related parameters i.e. groups 19-**, 32-**, and 33-**.
SETVLT is used to write to all other FC 300 parameters.
Summary of Contents for MCO 305
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