Parameter
structure
Keypad and
display
Parameter x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance
RFC mode
412
Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
9 Performance
9.1 Digital speed reference
Table 9-1 Accuracy and resolution
*0.01% of the reference
9.2 Analog reference
Table 9-2 Update rates
* Analog input 1 is subject to a window filter as defined in Pr
7.26
.
Table 9-3 Resolution
*16 bit plus sign as a speed reference, resolution = Pr
7.26
x 500 x 10
3
.
9.3 Analog outputs
Table 9-4
*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
*software only
Open loop
Closed loop
Preset
Precision
Preset
Precision
Accuracy
0.01%*
0.01%*
0.01%*
0.01%*
Resolution
0.1Hz
0.001Hz
0.1rpm
0.001rpm
Open Loop
Closed loop
Pr 1.36 /
Pr 1.37
Pr 4.08
Pr 3.19
Other
Pr 1.36 /
Pr 1.37
Pr 4.08
Pr 3.22
Other
All kHz
Analog input 1
4ms
4ms
4ms
4ms
250
μ
s*
4ms*
250
μ
s*
4ms*
Analog input 2 / 3
4ms
4ms
4ms
4ms
250
μ
s
250
μ
s
250
μ
s
4ms
Open loop
Closed loop
Analog input 1
16 bits plus sign*
16 bits plus sign*
Analog input 2 / 3
10 bit plus sign
10 bit plus sign
Resolution (voltage mode)
10 bit plus sign
Resolution (current mode)
10bit
Update rate
4ms
Update rate (high speed update - voltage mode
only)*
250
μ
s
Switching
frequency
Terminals
Open loop
Closed loop
Pr 6.35 / Pr 6.36
(Limit switches)
Other
Pr 6.35 / Pr 6.36
(Limit switches)
Other
All
24-26 as input
4ms
4ms
250
μ
s
4ms
All
24-26 as output
4ms
4ms
4ms
4ms
All
27-29
4ms
4ms
250
μ
s
4ms
All
31 (enable)
-
4ms*
-
4ms*
All
31 (disable)
-
<100us
-
<100
μ
s
All
Relay output closing
4ms*
4ms*
4ms*
4ms*
All
Relay output opening
4ms*
4ms*
4ms*
4ms*
Summary of Contents for unidrive sp
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