Encoder Termination; Error Detection Level; Auto Configuration Enable / Ssi Binary Format Select - Control Techniques unidrive sp Advanced User's Manual

Menus 15 to 17 Parameter Keypad and
SM-Uni Enc Pl structure display
x.16

Encoder termination

Drive modes Open-loop, Closed-loop vector, Servo, Regen
Coding Bit SP
Open-loop, Closed-loop vector, Servo,
Default
Regen
Update rate Background read
The terminations may be enabled/disabled by this parameter as follows:
Encoder input Pr x.16=0
A-A\ Disabled
B-B\ Disabled
Z-Z\ Disabled
U-U\ V-V\ W-W\ Enabled
A-A\ and B-B\ terminations cannot be disabled when encoders with SinCos waveforms are selected.
Z-Z\ terminations cannot be disabled except when Ab, Fd, Fr, Ab.Servo, Fd.Servo, Fr.Servo encoders are selected.
x.17

Error detection level

Drive modes Open-loop, Closed-loop vector, Servo
Bit SP
Coding
Range Open-loop, Closed-loop vector, Servo
Default Open-loop, Closed-loop vector, Servo
Update rate Background read
Trips can be enabled/disabled using Pr x.17 as follows:
Bit Function
0 Wire break detect
1 Phase error detect
2 SSI power supply bit monitor
The binary sum defines the level of error detection as below:
Bit 2 Bit 1 Bit 0
0 0 0 Error detection disabled
0 0 1 Wire break detect
0 1 0 Phase error detect
0 1 1 Wire break + phase error detect
1 0 0 SSI power supply bit monitor
1 0 1 Wire break + SSI power supply bit monitor
1 1 0 Phase error detect + SSI power supply bit monitor
1 1 1 Wire break detect + phase error detect + SSI power supply bit monitor
x.18

Auto configuration enable / SSI binary format select

Drive modes Open-loop, Closed-loop vector, Servo
Bit SP
Coding
1
Default Open-loop. Closed-loop vector, Servo
Update rate Background read
SC.Hiper, SC.EnDat, EnDat
When a SC.Hiper, SC.EnDat or EnDat encoder is being used, the Solutions Module will interrogate the encoder on power-up. If Pr x.18 is set and the
encoder type is recognised based on the information provided by the encoder, the Solutions Module will set the encoder turns (Pr x.09), the
equivalent lines per revolution (Pr x.10) and the encoder comms resolution (Pr x.11) for the encoder. If the encoder is recognised these parameters
will all become read only. If the encoder is not recognised, the Solutions Module initiates an SLx.Er trip (Pr x.50 = 7) to prompt the user to enter the
information. The Solutions Module should be able to auto-configure with any EnDat encoder where the number of turns and lines per revolution are a
power of 2, and the following HIPERFACE encoders: SCS 60/70, SCM 60/70, SRS 50/60, SRM 50/60, SHS 170, LINCODER, SCS-KIT 101, SKS36,
SKM36.
234
Parameter Parameter
x.00 description format
FI DE Txt VM DP ND
1
Pr x.16=1
Enabled
Enabled
Disabled
Enabled
FI DE Txt VM DP ND
0 to 7
0
Error detection level
FI DE Txt VM DP ND
0
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Advanced parameter
Macros
descriptions
RA NC NV PT US RW BU
1 1
Pr x.16=2
Enabled
Enabled
Enabled
Enabled
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
Serial comms Electronic
Performance
protocol nameplate
PS
1
PS
1
Value in Pr x.17
0
1
2
3
4
5
6
7
PS
1
Unidrive SP Advanced User Guide
Issue Number: 7
Feature look-
up table