KEB COMBIVERT F5-A Applications Manual page 415

Bit Meaning
2048: no dig. ST =
11
no E.Bus
4096: Error reset
12
at 0
8192: Actual value
13 = setpoint at mod.
off
0 = on (Default)
14
16384 = off
15 32768: Set change
*1 to bit 0, 3, 5:
*2 to bit 11:
© KEB, 2012-10 COMBIVERT F5-A, -E, -H
Pn.65 Special functions
Explanation
the two watchdog (for operator interface and HSP5) are deactivated by the input
programmed in di.39 "Shutdown ST input selection". *2
A malfunction or error reset is only permitted if the amount of the actual value
(ru.07) is lower than the operating hysteresis(LE.16). This applies also to the
automatic restart.
The comparison ru.07 "actual value display" = ru.01 "set value display" (for status
word and condition "constant run") is permanently progressed, also at deactiva-
ted modulation and during "speed search".
This affects the status word, the timer start and reset conditions, and the swit-
ching condition 20.
Correction of the current and torque accuracy. Default setting should not be chan-
ged. No function at A-Servo.
A set change is possible during approach to reference point or system position
measurement by setting bit 15. Changing the position source or gear changes
are assume directly. This can lead to maloperation. The responsibility to prevent
maloperation is by the user.
With the GTR7 (braking transistor), a braking resistor can be connected to the DC link
that absorbs recovered energy when the motor is working as a generator.
By default, the GTR7 is off when the modulation is switched off.
For some applications (e.g., synchronous motor operated in the field weakening range)
it is sensible to leave the GTR7 active for switched off modulation, so that the braking
resistor can be added when the DC link voltage exceeds the value of Pn.69 "GTR7 DC
link voltage level".
By setting this bit, the GTR7 function is available for the respective inverter state.
If a drive is controlled via a bus system, and the control release is furthermore switched
via the control word, the two watchdogs (Operator watchdog and HSP5 watchdog)
should be activated so that the drive is stopped on failure of the bus system. However,
the drive can then not be repositioned by hand anymore, since – as long as the bus is
down - the malfunction- or error message of the watchdog remains in force.
With parameter di.39 "Shutdown ST input selection", an input can already be selected
with which the digital setting of the control release (i.e., setting via di - parameter or the
control word) can be deactivated. Only terminal ST (X2A.16) is effective and the control
of the control release can be done via the digital input.
If this bit is set, the two watchdogs are also deactivated with the selected (in di.39) input.
If a response with automatic restart is now selected for the watchdog error, the malfunc-
tion automatically resets and the drive can be used in manual operation.
Protective functions
7
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