Control Techniques SM-Encoder Output Plus, Руководство пользователя

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34
SM-Encoder Plus & SM-Encoder Output Plus User Guide
www.controltechniques.com Issue: 4
The SM-Encoder Plus and SM-Encoder Output Plus do not have their own freeze
inputs, therefore the freeze inputs must come from a SM-Applications or SM-Universal
Encoder Plus. The freeze data is processed every 4ms x number of dumb modules
fitted. If a freeze has occurred and the freeze flag (Pr
x.39 ) is zero, the position data is
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 OFF (0), but is set to On (1) when the Solutions Module
can provide position feedback. Pr x.45 then remains at On (1) whilst the drive is
powered-up.
If Pr x.49 is set to one, Pr x.04 and Pr x.05 are not updated. If this parameter is zero,
Pr x.04 and Pr x.05 are updated normally.
The error status is provided so that the only one option 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 ‘SLX.Er’ trip, where X is the slot number. A
value of zero indicates the Solutions Module has not detected an error, a non-zero value
indicates that an error has been detected. (See Table 7.1
Trip codes on page 36 for the
meaning of the values in this parameter.) When the drive is reset, this parameter is
cleared.
x.36 Freeze position
RO Uni NC PT
Ú
0 to 65535 (1/2
16
ths of a
revolution)
Ö
Update rate: 4ms x number of dumb modules
x.39 Freeze flag
RW Bit NC
Ú
OFF (0) or On (1)
Ö
OFF (0)
Update rate: 4ms x number of dumb modules
x.45 Position feedback initialised
RO Bit NC PT
Ú
OFF (0) or On (1)
Ö
Update rate: 4ms x number of dumb modules
x.49 Lock position feedback
RW Bit
Ú
OFF (0) or On (1)
Ö
Update rate: Background write
x.50 Solutions Module error status
RO Uni NC PT
Ú
0 to 255
Ö