Process sequence and signal states

Status and test results of the brake test are transferred for brake 1 and brake 2 via a process data word of the process input data (BT PI 1.0-1.7) of the additional functions.

Measured values can be read in by application and transferred via additional process data words. Contact SEW‑EURODRIVE Service for this case.

No.

Procedure

PD

Signal states

[1] General enable

  • PO 1:0 = "1"

PO 1:0

  • "1": Enable
  • "0": Active brake test is aborted.
  • PO 1:1 = "1"

PO 1:1

  • "1": Enable
  • "0": Active brake test is aborted.
  • PO 1:13 = "0"

PO 1:13

  • "1": Output stage inhibited (active brake test is aborted).
  • "0": Output stage enabled

[1]

Activation of the "brake test" mode operating mode

PO 6

  • 700 (decimal)

[1]

Start/stop brake test

PO 1:7

  • "1": Brake test is performed.
  • Prerequisite: Drive enabled and not in fault state.
  • "0": Active brake test is aborted.

Up to [1]

Test result valid1) if the brake test has already been performed.

 

 

[1] to [2]

 

Brake test is performed

Brake status2) is displayed

PI 1:0

  • "1": Brake test active.

PI 1:1

  • "0": Brake test not aborted.

[2] to [3]

Aborted by stop or no enable

PI 1:0

PI 1:1

  • "0": Brake test not active.
  • "1": Brake test aborted.

[3] to [4]

 

Brake test is performed

Brake status2) is displayed

 

PI 1:0

  • "1": Brake test active.

PI 1:1

  • "0": Brake test not aborted.

From [4]

Brake test completed and test result valid1)

PI 1:0

PI 1:1

  • "0": Brake test not active.
  • "0": Brake test not aborted.

 

1) Test result valid:

Brake 1:

BT PI 1:2 "1": Test result NOK or BT PI 1:3 "1": Test result OK

Brake 2 (only with activated test for 2 brakes):

BT PI 1:4 "1": Test result NOK or BT PI 1:5 "1": Test result OK

 

2) Brake status (only with activated test for 2 brakes):

BT PI 1:6 "1" Brake test applies brake 1

BT PI 1:7 "1" Brake test applies brake 2