4 parameter attributes, Parameter attributes, 9parameter reference – Lenze 8400 BaseLine D User Manual
Page 170

9
Parameter reference
9.1
Structure of the parameter descriptions
170
Lenze · 8400 BaseLine D · Reference manual · DMS 5.5 EN · 01/2014 · TD05
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
9.1.4
Parameter attributes
The table footers contain the parameter attributes:
Scaling factor
The "scaling factor" is important for parameter access via a bus system.
Example 1: The value "654" of the parameter
(AIN1: input voltage) read via a bus system
must be divided by the corresponding scaling factor "100" to obtain the actual display value
"6.54 V".
[9-1]
Conversion formula for read access via bus system
Example 2: In order to set the parameter
(acceleration time main setpoint) to the value
"123.45 %" via a bus system, the integer value "12345" must be transferred, i.e. the value to be set
must be multiplied by the corresponding scaling factor "100".
[9-2]
Conversion formula for write access via bus system
Read access Write access CINH PLC STOP No transfer COM MOT
Scaling factor: 1
Attribute
Meaning
Read access
Read access to parameter possible.
Write access
Write access to parameter possible.
• Please also observe the following attributes:
CINH
Parameter value can only be changed when the controller is inhibi-
ted.
PLC STOP
Parameter value can only be changed when the application is stop-
ped.
No transfer
Parameter is not transferred to controller when the command Download parameter set is
executed.
COM
Communication-relevant parameter
• This parameter is relevant for parameter data transfer via the (CAN) system bus.
MOT
Motor control parameters
Signal type
Scaling factor
Resolution
Value range
Analog (scaled)
100
16 bits signed
± 199.9 %
Angular velocity
1
16 bits signed
± 32767 increments/ms
Position in [units]
10000
32 bits signed
± 214748.3647 [units]
Digital (BOOL)
1
8 bits unsigned
0 ≡ FALSE; 1 ≡ TRUE
Time
1000
16 bits unsigned
0 ... 999.000 s
Selection value
1
16 bits unsigned
0 ... 65535
Read value (via bus system)
Scaling factor
-----------------------------------------------------------------------
Indicated value (Engineer)
=
Value to be written (via bus system)
Value to be set Scaling factor
⋅
=