Lust MASTERCONTROL MC6000 Series, Инструкция по эксплуатации

Страница: 79 / 177

Instruction Manual MC6000
7-9
7.2.3 Setting Reference Value Input
a) If reference values are to be provided continuously from one reference value source:
• Set a reference value selector, e.g. RSSL3 to the required reference value source.
• Only in the case of speed control: set parameters for the acceleration and deceleration
ramp ACCR and DECR (_REF).
• If necessary set parameter for an inversion of reference value on channel 3 using the
function selector of an input.
• If necessary, parameter a percentage matching of the reference value using RF3FA
(_REF).
0 = Low Level
1 = High Level
After the reference value selectors have been set and hence the required reference value
source(s) has/have been selected, other reference value input parameters can be set. Which
parameters are to be set depends on the reference value selector and reference value source(s)
selected. For examples, see
Section 7.4 "Examples".
ISA0 ISA1 RSSL3 =
(1) (4)
0 0 RFIX1 (Default)
1 0 RFIX2
0 1 RFIX5
1 1 RFIX6
ISA0 ISA1 RSSL3 =
(1) (8)
0 0 RFIX1 (Default)
1 0 RFIX2
0 1 RCON (off)
1 1 RA0
Setting Offset binary Offset decimal
ADx-0 0001 b 1
ADx-1 0010 b 2
ADx-2 0100 b 4
ADx-3 1000 b 8
b) Switching between a number of reference value sources using external signals:
• Set RSSL3 (for example) to the reference value to be selected if there are no external
signals at the inputs.
• Using the diagram "Structure of reference value input" check how many reference value
sources are to be handled by applying external signals.
e.g.: If there is to be switching between RFIX1 and RFIX2 the extent of
switching =1.
• Now the appropriate function has to be assigned to the input e.g. ISA0 at which you
wish to feed in the external signals for switching. In the case of the example that would
be FISA0 = AD3-0. The setting AD3-0 produces an offset to the basic setting of the
reference value selector RSSL3. The value of the offset is derived from a binary 4-bit
word.
• If additionally the function FISA1 = AD3-2 is allocated to input ISA1, then the
following switching facilities for RSSL3 = RFIX1 result:
• With FISA1 = AD3-3 the following transfer occurs:
Note:
A number of reference value selectors can be used in order to superimpose reference values
from a variety of sources.