Control Of A Holding Brake - Lenze 4800 Manual

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Configuration
7.4.5
Code Code Name Name
C019* Threshold
n
act
C195* Delay
between
'engage
brake' and
controller
inhibit
C196* Delay
between
'setpoint
integrator
free' and
quick stop
[C197*] Sign of the
torque
selection
C244* Threshold
C245* Threshold
I
F
C317* Time delay
for the
reduced
field current
C318*¤ Activate
field current
reduction
7-62
48XX/49XXSHB0399

Control of a holding brake

Purpose
Control singal for holding brakes in:
( hoists
( travelling drives
( active loads
Possible settings
Lenze Selection
50 rpm 0 rpm
= 0
9999 s 0.00s
1s
10s
0.00s 0.00 s
1s
10s
100s
0 -0- Sign is determined by the torque setpoint
-1- positive sign
-2- negative sign
10% 0 % I
Amax
I > I
A x
10% 0 % I
Fmax
> I
x
60 s 0.0 s
10 s
100 s
0 -0- Field current reduction function is off
-1- Field current reduction function is switched on
The function for the control of a holding brake only makes sense with the
configurations C005 = -1X- and -5X-. The brake control is always derived from the
QSP function.
{1 rpm} 5000 rpm
{0.01 s} 1s
{0.1s} 10s
{1s} 250s
9999 s
{0.01 s} 1 s
{0.1s} 10s
{1s} 100s
{10s} 250s
{0.1% I } +100 % I
Amax Amax
{0.1% I } +100 % I
Fmax Fmax
{0.1 s} 10 s
{1 s} 100 s
{10 s} 3600 s
Info
If the acutal speed falls below the
threshold, the corresponding output will be
activated.
Delay between signal 'engage brake' and
automatic controller inhibit
9999 s:
Unlimited delay, controller will not be
inhibited.
Delay between reset of the quick stop
function and enable of the main setpoint
integrator
Sign of the torque selection between reset
of QSP and enable of the setpoint
integrators
I > I
A x
Reference, rated controller current
(armature)
I > I
F x ,
Reference, rated controller current (field)
Time which is required to activate the
reduced field current after inhibiting the
controller.