Lenze DDS Function library 9300 Servo - Manual (Page 11)

Function block library Lenze9300Servo.lib
Special functions
2.1.1 Holding brake (L_BRK)
2−1
L
Lenze9300Servo.lib EN 1.1
2 Function blocks
2.1 Special functions
2.1.1 Holding brake (L_BRK)
This FB controls a holding brake. You can use it, for instance, for hoists and traversing drives, as well
as for active loads.
DCTRL_bCInh_b
MCTRL_nNAct_a
MCTRL_nNSet2_a
MCTRL_nMAct_a
bSet_b
nNx_a
nSign_a SIGN
nMSet
t 0
wActivationTime
t 0
wReleaseTime L_BRK
bQSP_b
bOut_b
bMStore_b
bCInh_b
nMSetOut_a
CTRL
Abb. 2−1 Holding brake (L_BRK)
VariableName DataType SignalType VariableType Note
bSet_b Bool binary VAR_INPUT
nNx_a Integer analog VAR_INPUT Speed threshold from which the drive can output the
signal "close brake". The signal source for this input
can be a control code, a fixed value or any other
analog output of a FB.
nSign_a Integer analog VAR_INPUT Direction of the torque which the drive has to build up
against the brake. The signal source for this input can
be a control code, a fixed value or any other analog
output of a FB.
bQSP_b Bool binary VAR_OUTPUT QSP can be triggered in conjunction with MCTRL.
bOut_b Bool binary VAR_OUTPUT Set the brake
bMStore_b Bool binary VAR_OUTPUT provide a defined holding torque
bCInh_b Bool binary VAR_OUTPUT A controller inhibit can be set in conjunction with
DCTRL.
nMSetOut_a Integer analog VAR_OUTPUT Holding torque of the DC injection brake
16384 = value of C0057 (max. possible torque for the
drive configuration)
wReleaseTime Word − VAR CONSTANT RETAIN Brake disengaging time
wActivationTime Word − VAR CONSTANT RETAIN Brake engaging time
nMSet Integer − VAR CONSTANT RETAIN Holding torque
DCTRL_bCInh_b Bool − − These signals are processed as quantities within the
FB.
MCTRL_nNAct_a Integer − −
MCTRL_nNSet2_a Integer − −
MCTRL_nMAct_a Integer − −
Parameter codes of the instances
VariableName L_BRK1 SettingRange Lenze
wReleaseTime C0196 0.0 ... 60.0 s 0.0
wActivationTime C0195 0.0 ... 99.9 s 99.9
nMSet C0244 −199.99 ... 199.99 % 0.00