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262 Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 7
This Solutions Module does not have its own freeze input, so the freeze input must come from another Solutions Module that is set up to freeze the
drive position. The freeze data is processed every 4ms x number of dumb modules fitted. If a freeze event occurs when the freeze flag (Pr x.39) is
zero, the non-marker reset position values (Pr x.29 and Pr x.30) are sampled at freeze event point and then subsequently stored in Pr x.35 and Pr
x.36 and the freeze flag is set. The freeze flag must be reset by the user before the next freeze event is stored.
At power-up Pr x.45 is initially zero, but is set to one when the resolver module can provide position feedback. Pr x.45 then remains at one while the
drive is powered-up.
If Pr x.49 is set to one, Pr x.04, Pr x.05 and Pr x.06 are not updated. If this parameter is zero, Pr x.04, Pr x.05 and Pr x.06 are updated normally.
The error status is provided so that only one Solutions Module error trip is required for each Solutions Module slot. If an error occurs the reason for
the error is written to this parameter and the drive may produce a SLotx.Er trip, where x is the slot number. A value of zero indicates that the module
has not detected an error, a non-zero value indicates that an error has been detected. (See descriptions for each category for the meaning of the
values in this parameter.) When the drive is reset this parameter is cleared for all Solutions Modules.
All modules include a temperature monitoring circuit. If the PCB temperature exceeds 90°C the drive fan is forced to operate at full speed (for a
minimum of 10s). If the temperature falls below 90°C the fan can operate normally again. If the PCB temperature exceeds 100°C the drive is tripped
and the error status is set to 74.
Most Solutions Modules include a processor with software. The software version is displayed in these parameters in the form Pr x.02 = xx.yy and Pr
x.50 = zz. Where xx specifies a change that affects hardware compatibility, yy specifies a change that affects product documentation, and zz specifies
a change that does not affect the product documentation. When a module is fitted that does not contain software both these parameters appear as
zero.
x.39 Freeze flag
Drive modes Open-loop, Closed-loop vector, Servo, Regen
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Default
Open-loop, Closed-loop vector, Servo,
Regen
0
Update rate Combined update time. This module adds 4ms to the combined update time.
x.45 Position feedback initialised
Drive modes Open-loop, Closed-loop vector, Servo
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1111
Update rate Background write
x.49 Lock position feedback
Drive modes Open-loop, Closed-loop vector, Servo
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Update rate Background write
x.50 Solutions Module error status
Drive modes Open-loop, Closed-loop vector, Servo, Regen
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111 1
Range Open-loop, Closed-loop, Servo, Regen 0 to 255
Update rate Background write
x.51 Option software sub-version
Drive modes Open-loop, Closed-loop vector, Servo, Regen
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111 1
Range Open-loop, Closed-loop, Servo, Regen 0 to 99
Update rate Write on power-up
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