Control Techniques unidrive sp Advanced User's Manual page 307

Menus 15 to 17 Parameter Keypad and
SM-SLM structure display
x.08 Marker pulse received indicator
Drive modes Open-loop, Closed-loop vector, Servo, Regen
Bit SP
Coding
1
Operating mode Host, Encoder only
Range Open-loop, Closed-loop, Servo, Regen
Default Open-loop, Closed-loop, Servo, Regen
Update rate Backgroud
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°.
x.09 SLM converted flux offset
Drive modes Open-loop, Closed-loop vector, Servo, Regen
Bit SP
Coding
Operating mode Host, Encoder only
Range Open-loop, Closed-loop, Servo, Regen
Default Open-loop, Closed-loop, Servo, Regen
Update rate Backgroud
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 65,535 places per revolution offset by 120°.
x.10 Encoder lines per revolution
Drive modes Open-loop, Closed-loop vector, Servo, Regen
Bit SP
Coding
Operating mode Host, Encoder only
Range Open-loop, Closed-loop, Servo, Regen
Default Open-loop, Closed-loop, Servo, Regen
Update rate Backgroud
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.
x.11 SLM software version
Drive modes Open-loop, Closed-loop vector, Servo, Regen
Bit SP
Coding
Operating mode Host, Encoder only
Range Open-loop, Closed-loop, Servo, Regen
Default Open-loop, Closed-loop, Servo, Regen
Update rate Backgroud
Indicates the software version of the SLM module fitted 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.
306
Parameter Parameter
x.00 description format
FI DE Txt VM DP ND
OFF (0) or On (1)
OFF (0)
FI DE Txt VM DP ND
0 to 65,535
0
FI DE Txt VM DP ND
0 to 50,000
1024
FI DE Txt VM DP ND
3
0.000 to 9.999
0.000
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Advanced parameter
Macros
descriptions
RA NC NV PT US RW BU
1
RA NC NV PT US RW BU
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
Serial comms Electronic
Performance
protocol nameplate
PS
PS
1
PS
1
PS
1
Unidrive SP Advanced User Guide
Issue Number: 7
Feature look-
up table