Lenze i550

10.6.3.5 Manual release of the holding brake
The "Open holding brake" funcon serves to release the holding brake immediately. Brake
applicaon me and brake opening me as well as the condions for the automac operaon
are not eecve.
Precondions
•
Observe seng and applicaon notes in the "Holding brake control" chapter! ^ 203
•
The brake mode "Automac [0]" or "Manual [1]" must be set in 0x2820:001 (P712.01).
•
The trigger "Release holding brake [115]" must be assigned to a digital output or, in the
simplest case, to the relay which then switches the brake supply.
Details
A manual opening of the holding brake is possible in the modes "Automac [0]" and "Manual
[1]" via the following external triggers:
•
Via bit 14 in the CiA 402 Controlword 0x6040.
•
Via the trigger in 0x2631:049 (P400.49) assigned to the "Open holding brake" funcon.
4Example for operang mode ^ 210
Parameter
Address Name / seng range / [default seng] Info
0x2631:049
(P400.49)
Funcon list: Open holding brake
(Funcon list: Open brake)
•
Seng can only be changed if the inverter is inhibi-
ted.
•
Further seng opons: 4Trigger list ^ 64
Assignment of a trigger for the "Open holding brake" funcon.
Trigger = TRUE: open holding brake (immediately).
Trigger = FALSE: no acon.
Notes:
•
Funcon is only executed if the brake mode 0x2820:001 (P712.01) is
set to "Automac [0]" or "Manual [1]".
CAUTION!
•
The manually triggered "Open holding brake" command has a direct
impact on the "Release holding brake [115]" trigger. Thus, the holding
brake can be manually released if the power secon is switched o!
•
The responsibility for a manual opening of the holding brake lies with
the external trigger source for the "Open holding brake" command!
0 Not connected No trigger assigned (trigger is constantly FALSE).
Example for operang mode
•
Switch S1 starts the motor in forward direcon of rotaon. Switch S1 in the inial posion
stops the motor again.
•
Switch S2 opens the holding brake. For this purpose, in this example, trigger "Release hold-
ing brake [115]" is assigned to the relay that switches the brake supply.
Connecon plan Funcon
GND AI1 AI2 AO1
10V 24V DI1 DI2 DI3 DI4 DI5 DO1
X3
S1 S2
1k ...10k
0 ... 10 V
R1
Potenometer R1 Frequency setpoint selecon
Switch S1 Run
Switch S2 Open holding brake
Parameter Designaon Seng for this example
0x2631:001 (P400.01) Enable inverter Constant TRUE [1]
0x2631:002 (P400.02) Run Digital input 1 [11]
0x2631:004 (P400.04) Reset fault Not connected [0]
0x2631:049 (P400.49) Open holding brake Digital input 2 [12]
0x2634:001 (P420.01) Relay Release holding brake [115]
0x2824 (P200.00) Control selecon Flexible I/O conguraon [0]
0x2838:003 (P203.03) Stop method Standard ramp [1]
0x2860:001 (P201.01) Frequency control: Default setpoint source Analog input 1 [2]
Conguring the motor control
Parameterisable motor funcons
Holding brake control
210