Performance; Digital Speed Reference; Analog Reference; Analog Outputs - Control Techniques unidrive sp Advanced User's Manual

Parameter Keypad and
Parameter x.00
structure display
9

Performance

9.1

Digital speed reference

Table 9-1 Accuracy and resolution
Open loop
Preset Precision
Accuracy 0.01%*
Resolution 0.1Hz
*0.01% of the reference
9.2

Analog reference

Table 9-2 Update rates
All kHz Analog input 1
Analog input 2 / 3
* Analog input 1 is subject to a window filter as defined in Pr 7.26.
Table 9-3 Resolution
Analog input 1 16 bits plus sign*
Analog input 2 / 3 10 bit plus sign
*16 bit plus sign as a speed reference, resolution = Pr 7.26 x 10
otherwise
9.3

Analog outputs

Table 9-4
Resolution (voltage mode)
Resolution (current mode)
Update rate
Update rate (high speed update - voltage mode
only)*
*When sourced from Pr 4.02, Pr 4.17 in any mode and Pr 3.02, Pr 5.03
in closed-loop.
9.4

Digital inputs and outputs

Table 9-5 Response times
Switching
Terminals
frequency
All 24-26 as input
All 24-26 as output
All 27-29
All 31 (enable)
All 31 (disable)
All Relay output closing
All Relay output opening
*software only
372
Parameter Advanced parameter
description format
Closed loop
Preset Precision
0.01%* 0.01%* 0.01%*
0.001Hz 0.1rpm 0.001rpm
Open Loop
Pr 1.36 /
Pr 4.08 Pr 3.19
Pr 1.37
4ms 4ms 4ms
4ms 4ms 4ms
Open loop Closed loop
16 bits plus sign*
10 bit plus sign
10 bit plus sign
10bit
4ms
250µs
Open loop
Pr 6.35 / Pr 6.36
Other
(Limit switches)
4ms 4ms
4ms 4ms
4ms 4ms
- 4ms*
- <100us
4ms* 4ms*
4ms* 4ms*
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Serial comms
Macros
descriptions
Pr 1.36 /
Other
Pr 1.37
4ms 250µs*
4ms 250µs
6
Closed loop
Pr 6.35 / Pr 6.36
(Limit switches)
250µs
4ms
250µs
-
-
4ms*
4ms*
Electronic
Performance
protocol nameplate
Closed loop
Pr 4.08 Pr 3.22 Other
4ms* 250µs* 4ms*
250µs 250µs 4ms
Other
4ms
4ms
4ms
4ms*
<100µs
4ms*
4ms*
Unidrive SP Advanced User Guide
Feature look-
up table
Issue Number: 7