Nord Drivesystems SK 530P - Page 72

NORDAC PRO (SK 500P) – Users Manual for Frequency Inverters
72 BU 0600 en-2319
WARNING
Unexpected movement due to overload
In case of overload of the drive there is a risk that the motor will "break down" (sudden loss of torque).
An overload may be caused e.g. by inadequate dimensioning of the drive unit or by the occurrence of
sudden peak loads. Sudden peak loads may be of a mechanical origin (e.g. blockage) or may be
caused by extremely steep acceleration ramps (P102, P103, P426).
Depending on the type of application, "breakdown" of the motor may cause unexpected movement
(e.g. dropping of loads by lifting equipment).
To prevent any risk, the following must be observed:
• For lifting equipment applications or applications
with frequent large load changes, parameter
P219 must remain in the factory setting (100 %).
• Do not inadequately dimension the drive unit, provide adequate overload reserves.
• If necessary, provide fall protection (e.g. for lifting equipment) or equivalent protective measures.
The relevant parameters for the device are described in the following. The parameters are accessed
using a parametrisation tool (e.g. NORDCON software or control and parametrisation unit, see also
( Section 3 "Options") and therefore makes it possible to adapt the device to the drive task in the
best possible way. Different device configurations can result in dependencies for the relevant
parameters.
The parameters can only be accessed if the control unit of the device is active.
Every frequency inverter is factory-set for a motor of the same power. All parameters can be adjusted
"online". Four switchable parameter sets are available during operation. The scope of the parameters
to be displayed can be influenced using the supervisor parameter P003.
The relevant parameters for the device are described in the following. Explanations for parameters
which concern the field bus options or the special functionality of the POSICON, for example, can be
obtained from the respective supplementary manuals.
The individual parameters are combined into functional groups. The first digit of the parameter number
indicates the assignment to a menu group:
Menu group No. Master function
Operating displays
(P0--)
Display of parameters and operational values
DS402 Parameters (P0--) Parameter for DS402 drive profile
Basic parameters
(P1--)
Basic device settings such as behaviour when switching on/off
Motor data (P2--) Electrical settings for the motor (motor current or starting voltage)
Control parameters
(P3--)
Setting for current and speed controls as well as encoder settings
(incremental encoders)
Settings for the integrated PLC (Details in

BU0550)
Control terminals (P4--) Assignment of functions for the inputs and outputs
Additional
parameters
(P5--)
Primarily monitoring functions and other parameters
Positioning
(P6--)
Setting of the positioning function (details

BU0610)
Information (P7--) Display of operating values and status messages
Bus parameters
(P8--)
Parameters for Industrial Ethernet (Details in

BU0620)