Parameter
structure
Keypad and
display
Parameter
x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance RFC mode
Menus 15 to 17
SM-SLM
Unidrive SP Advanced User Guide
347
Issue Number: 10 www.controltechniques.com
This parameter defines the mode of operation of the drive:
0 -
HoSt
: Host mode (Torque amplifier only)
1 -
Enc.Only
: Encoder only mode
Host
mode uses an external position controller host and an SM-SLM for the speed loop. The host controller will handle all SLM calculations for
initialisation. The UniSP acts as torque amplifier similar in operation as the MultiAx drive.
Enc.Only
mode uses the SLM module for speed feedback and nameplate data only.
The encoder has a marker channel and this is used to correct the absolute position within a revolution after power-up. After passing through the
marker this bit is set and the zero offset parameter is updated with the difference between zero of the encoder position and the marker. This error is
due to the initial angle calculation using the single cycle SinCos. The power-up single cycle SinCos method has a maximum error of
±
3
°
.
This parameter converts the drive phase angle (Pr
3.25
) into an SLM EEPROM (CT Coder) nameplate flux offset value. The drive is the electrical
angle offset in degrees. The SLM flux offset is the mechanical offset in 65535 places per revolution offset by 120
°
.
This parameter is used to set the mask used on the fine position sent from the SLM module to the Solutions Module. 1024 lines results in 6 extra bits
of fine position information being used. This takes the full position resolution to 22 bits. A 2046 line encoder uses 7 extra bits of fine position etc.
Indicates the software version of the SLM module installed to the motor. This is SLM Pr
100
which needs to have been transferred if in HOST mode.
The format is p.vvv where p is the page and vvv is the software version of the page.
This parameter specifies the time delay between the drive power-up and the SLM being available in 250ms units.
x.07
Operating mode
RW
Txt
US
Ú
HoSt (0) to Enc.Only (1)
Ö
HoSt (0)
Drive modes: Host, Encoder only
Update rate: Background read
x.08
Marker pulse, received indicator
RO
Bit
NC
Ú
OFF (0) or On (1)
Ö
OFF (0)
Drive modes: Host, Encoder only
Update rate: Background
x.09
SLM converted flux offset
RO
Uni
Ú
0 to 65535
Ö
0
Drive modes: Host, Encoder only
Update rate: Background read
x.10
Encoder lines per revolution
RW
Uni
US
Ú
0 to 50000
Ö
1024
Drive modes: Host, Encoder only
Update rate: Background read
x.11
SLM software version
RO
Uni
NC
PT
Ú
.0.000 to 9.999
Ö
0.000
Drive modes: Host, Encoder only
Update rate: Background read
x.12
SLM power-up delay
RW
Txt
US
Ú
0 to 5
Ö
1 (0.250 s)
Drive modes: Encoder only
Update rate: Background read
Summary of Contents for unidrive sp
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