Menu 15
I/O options
Commander SK Advanced User Guide
177
Issue Number: 9
SM-I/O Lite & SM-I/O Timer
The Commander SK SM-I/O Lite & SM-I/O Timer options have an analog input that operates with a 11 bit resolution in both voltage and current
modes.
The analog output has a resolution of approximately 13 bits (
±
1.25mV resolution in voltage mode and
±
2.5
μ
A resolution in current mode).
Input / outputs - sample times / update rates
The communications between the drive and the Solutions Module is through a synchronous serial link operating at 100kHz. The update rate of the
I/O is dependant on the number of I/O being used.
If fast update rates of I/O are required, the drive I/O should be used or the Solutions Module I/O loading should be kept to a minimum.
Sample calculation of update rate:
Analog input (2) + analog output (3)+ digital input (2) + relay output (2) + background (5) = 14 ms
* When the analog input is routed to precision reference parameters, Pr
1.18
and Pr
1.19
, the worst-case update time is 4 x 2 = 8 ms
If a 32 bit parameter is used as a source parameter on a Solutions Module, then it should be routed via a Menu 18 parameter e.g. Pr
18.12
.
The encoder reference input is only active when the destination parameter (Pr
15.59
) is routed to a valid parameter.
The new parameter values are stored automatically by the drive. If the drive is subsequently powered up with a different Solutions Module installed or
no Solutions Module installed when one was previously installed. The drive will trip on SL.dF or SL.nF.
This parameter shows the version of software programmed into the Solutions Module. The software sub version is displayed in Pr
15.51
.
These two parameters display the software version in the form of:
Pr
15.02
= xx.yy
Pr
15.51
= zz
If the SM-I/O Lite/ SM-I/O Timer analog input is programmed in any of the modes 2 to 5 (see Pr
15.38
) then this bit is set if the current input falls below
3mA. This bit can be designated to a digital output to indicate that the current input is less than 3mA.
I/O description
Required update time (ms)
Background (mandatory)
5
Digital input 1
2
Digital input 2
2
Digital input 3/ Encoder input
2
Relay output
2
Analog input (10/11 bit)
2/8*
Analog output
3
Total update time for all
18/24*
15.01
Solutions module identification code
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
1
Range
0 or 599
Default
Update rate
Write on power up
15.02
Solutions Module software version
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
2
1
1
1
1
Range
00.00 to 99.99
Update rate
Write on power up
15.03
Current loop loss indicator
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
1
Range
OFF(0) or On(1)
Update rate
Background write
NOTE
NOTE
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