Parker Hannifin S.p.A. Divisione S.B.C. user’s manual TWIN-N and SPD-N
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Pr0…Pr49, Pr151…Pr167, Pr188…Pr280
Main parameters
Pr50…Pr70
Position loop
Pr71…Pr99
pico-PLC parameters
Pr100…Pr150, Pr168…Pr187
Operating mode parameters
From Pr151 to Pr163
pico-PLC parameters
From In0 to In255
pico-PLC instructions
The units of measurement and the main resolutions of the parameters are:
Parameter type Unit Resolution
Speed Revolutions/minute 1
Acceleration Seconds/1000 revolutions/minute. 0.001
Position
4096 steps/revolution 1/4096 of a
revolution
Current % of the peak current of the converter 0.1
Below we describe how to interpret the symbols used in the block diagrams. The main block diagram
describes graphically how the converter works. Each rectangular block represents one or more read-
write parameters. The rhomboid blocks represent read-only parameters. You can find other functional
blocks in the diagram such as: GREATER THAN, EQUAL TO, LESS THAN, logical AND/OR. For
all these functional blocks, standard symbols are used. Binary parameters are represented as switches
and the position in the diagram corresponds to the default value.
Reduced and extended menu
When the SLVD_N is in the default status, only a limited number of parameters is displayed.
These parameters are the only parameters necessary for those applications where the SLVD_N is
used as a simple converter and where the advanced functions of the converter, for example, if the
SLVD_N is used with a numeric control or with an intelligent axis board, are not used. To switch
between the limited menu and the extended menu, enter b99.6: limited menu if equal to 0, extended
menu is 1.
The parameters in the limited menu are:
Pr0 Actual speed of the motor shaft in rpm (revolutions per minute).
Pr1 Offset for the main analogue reference.
Pr2 Full scale of the analogue reference: this is the rpm value that corresponds to a reference
voltage of 10 V.
Pr8 Value of the acceleration/deceleration ramps in seconds per 1000 rpm, with a resolution of 1
millisecond. If the acceleration/deceleration ramps must be set differently, you must go to the
extended menu in order to access the Pr9, Pr10 e Pr11 parameters.
Pr16 Integral gain of the speed regulator.
Pr17 Speed regulator damping.
Pr19 Peak current supplied by the converter, expressed as a percentage of the peak drive rating.
Pr29 Number of poles of the motor.
Pr32 Rated speed (rpm).
Pr33 Rated current supplied by the converter (which can be maintained indefinitely) expressed as
rated current of the motor (A).
Pr35 Instantaneous current required by the motor expressed as a percentage of the peak drive rating.
Pb99 Bit parameter for the basic commands.
The extended menu offers access to all the parameters and instructions of the pico-PLC, in addition
to those specified above.
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