Tip Dress Motor Current Supervision - Bosch Rexroth PSI 6 C 775 Serie Typspezifische Anleitung

74/78 Bosch Rexroth AG
Features
Discrete input E_13 = „Motor current
Discrete input E_14 = „Motor current
Discrete input E_15 = „Motor current
Tip dress active
I_2.09 or I_2.14
Tip dress motor on
A_17 or A_03
E_14 Motor current ok
E_15: Motor current high
E_13: Motor current low
A 2.10: Tip dress OK
7.1.8

Tip Dress Motor Current Supervision

See Discrete Input E_15.
low"
See Discrete Input E_15.
ok"
The tip dress motor current supervision is realized by using the discrete inputs
high" E_13, E_14 and E_15.
These inputs will be checked during the status "Tip dress active". "Tip dress
active" is defined as a "logical OR relation" between E_2.09 and E_2.14. (Tip
dress motor on for RS485 or Ethernet IP – IO mode).
Case 1 Tip dressing ok:
If, during "Tip dress active", a positive condition of E_14 = motor current ok is
detected, the serial output
A_2.10 = Tip dress ok will be set. This Output remains set also during the rest of
the "Tip dress active"
period. Any changes on the Inputs E_13 – E_15 will be ignored.
Fig. 5: Faultless tip dressing
Case 2 Tip dressing not ok:
If, during the complete cycle of "Tip dress active", no positive condition of E_14 =
motor current ok is detected, the inputs E_15 and E_13 will be checked with the
negative edge of the "Tip dress active" cycle.
The reaction out of this is described in the table below:
R911172797 | PSI 6xCx.775