Detailed description
2.12 Block descriptions
Basic logic functions: PLC basic program solution line (P3 sl)
168 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Formal parameters of brake test function
Signal Type Type Remark
Bclosed I BOOL Checkback input whether Close Brake is activated
(singlechannel - PLC)
Axis I INT Axis number of axis to be tested
TimerNo I TIMER Timer from user program
TV_BTactiv I S5TIME Monitoring time value -> brake test active, check of axis
signal DBX71.0
TV_Bclose I S5TIME Monitoring time value -> close brake Check of input
signal Bclosed after output CloseBrake has been set.
TV_FeedCommand I S5TIME Monitoring time value -> Travel command given Check
travel command after MoveAxis has been set
TV_FXSreched I S5TIME Monitoring time value -> fixed stop reached
TV_FXShold I S5TIME Monitoring time value -> test brake
CloseBrake A BOOL Request, close brake
MoveAxis A BOOL Request, initiate traversing motion
Done A BOOL Test successfully completed
Error A BOOL Error has occurred
State A BYTE Error status
Fault IDs
State Significance
0 No error
1 Start conditions not fulfilled, e.g., the axis is not in closed-loop control/brake closed/axis
inhibited
2 When the brake test is selected, no NC feedback in the "brake test active" signal
3 No "Brake applied" checkback by input signal Bclosed
4 No travel command output (e.g., axis motion has not been started)
5 Fixed end stop will not be reached -> axis reset was initiated
6 Traversing inhibit/approach too slow -> fixed end stop cannot be reached. TV
FXSreached monitoring timeout
7 Brake is not holding at all (the end position is reached)/approach speed is too high
8 Brake opens during the holding time
9 Error when deselecting the brake test
10 Internal error
11 "PLC-controlled axis" signal not enabled in the user program
Note
The block must be called by the user program. The user must provide an instance DB with
any number for this purpose. The call is multi-instance-capable.
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