Application Manual CDA3000
5-21
5 Software functions
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3
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A
DE
EN
FR
• The settings STR to MAN of the function selectors evaluate the input
as a digital input (24V digital input, PLC-compatible to IEC1131-2).
• Wire-break monitoring: When 4-20 is set, the system state monitor
triggers an error as soon as the current at the input (ISA00 only) falls
below 4 mA (for error message see appendix).
• For characteristic switchover via CUSEL, the control location for the
switchover must be set in parameter 651-CDSSL to TERM (terminal
operation).
• The “MAN” function permits a device configured for bus operation to
be operated by the operator locally, e.g. from the switch cabinet. This
function can be used for system setup or emergency operation
mode.
By the “MAN” function the parameters are automatically assigned
new parameter values, as set out in Table 5.12.
Note: While the “MAN” function is active, the “settings must not be
saved in the device”, as the reference structure is changed in
the background and the “MAN” function would be activated
after the next power-on.
29 0-10V Analog reference
input 0-10 V
Reference input 0-10 V. Pay attention to scaling
and adapt reference structure by means of refer-
ence selector (section 5.2.6 “_28 RS-Reference
structure”).
30 SCALE Limitation of motor
current
The current value CLIM1/2 for SFC and FOR is
limited and thus also the maximum torque (sec-
tion 5.5.10 “_80 CC-Current controller”).
31 PM10V Voltage input
-10 V ... +10 V
Reference input 0-10 V. Pay attention to scaling
and adapt reference structure by means of refer-
ence selector (section 5.2.6 “_28 RS-Reference
structure”).
32 0-20 Current input
0 ... 20 mA
33 4-20 Current input
4 ... 20 mA
If the current falls below 4 mA, the wire-break
monitor is tripped. Response to error message is
defined by way of parameter 529 -R-WBK (sec-
tion 5.3.10 “_51ER-Error messages”).
Explanatory notes
BUS KP/DM Function Effect
Table 5.11 Settings for analog inputs
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