Quickstop; Minimum Current Monitoring In The Safety Module - KEB COMBIVERT F6 Programming Manual

Protection functions

Quickstop

Quickstop is triggered by setting bit 2 (no Quick Stop) in the control word (co00) to
0. A change into state "Quick Stop active" can only be done from the state "Opera-
tion Enabled" (=> also description of the state machine in Chapter 3.1).
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The behavior in the quickstop state can be influenced by the object 0x605A.
Quickstop option code
Value Function
Disable drive function (direct change into the state "Switched on")
0
-1 Deceleration with the fault reaction ramp (=> Chapter 4.3.1.1)
Deceleration with the fault reaction ramp and remaining in the "Quickstop" state
-2
Deceleration with the standard ramp (co48...co60), transition to "switched on"
-3
Deceleration with the standard ramp (co48...co60) and remaining in the "Quickstop" state
-4
Deceleration with the positioning module ramp (ps48...ps59), transition to "switched on"
-5
Deceleration with the positioning module ramp (ps48...ps59), remaining in the "Quickstop"
-6
state"
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Minimum current monitoring in the safety module

With activation of encoderless monitoring in the safety module type 5, the current is
also monitored to a minimum limit. The current level is set on the safety module
with parameter "Hysteresis of the electrical current" (2% default, from the current
scales of the drives (de80[1])).
Parameter "Allowed time difference frequency to current" is used to set a filter time
(200ms default) until an error is output by the safety module when the current falls
below the specified value.
The drive complies with this setting by increasing the field-generating current.
For all motor types there is a limitation, either in the max. achievable speed or the
minimum current generates additional heating.
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The quickstop function must be activated in
the quickstop function is deactivated, the quickstop bit in the control word is
not evaluated and quickstop is not triggered.
If Quickstop is activated in cyclic operating modes, the cyclically preset set-
points are ignored and the motion profile is generated independently by the
drive, according to the selected Quickstop option code. If the function is deac-
tivated during the Quickstop deceleration ramp, the preset setpoints apply im-
mediately.
co32 (state machine properties). If
0x605A
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