Features; Special Features; Interfaces; Fault Messages - Bosch Rexroth PST 6 331 Serie Anleitung

R911172805 | PST 6xxx.331
7

Features

Sequence Standard 50/60 Hz (sequence parameter in net periods)
I/O-board
Interbus-S I/O board with LWL-Fernbus
Identbyte = 47 = C0 Profil
(For details, see "Tab. 1: Required and supplementary documentation",
Instruction Manual Rexroth PST 6xx0)
7.1

Special features

7.1.1

Interfaces

Timer has been prepared for networking with an Interbus-PMS module, a
Profibus-FMS module.
7.1.2

Fault messages

 The „Stop circuit open / no 24 V" fault is automatically reset.
 The DC link voltage is always checked, the fault message is automatically
reset.
7.1.3

Elektrode maintenance

 Seperated request and acknowledge for the electrode status "tip dress" and
"Start tip dress".
 Control has been prepared for up to 32 electrodes (0..31).
The inputs and outputs for "tip dress" and "start tip dress" allow only the
electrodes 1, 2 and 3 with separated inputs and outputs. The outputs "Tip
changing prewarning, actual" and "end of stepper" allow all electrodes but as
sum signal. For acknowledge the concerned electrode number has to be binary
at input E16 (spot selection "1") and input E17 (spot selection "2"). The
selection "0" is the signal for all 32 electrodes.
 The electrode status outputs are set if applicable with the start signal for the
concerned welding program and are updated at the end of the weld time.
The outputs "Tip changing prewarning, actual" and "end of stepper" are reset at
the end of the hold time.
 Additional function "Cutter change":
Each dressing steps are counted in an own tip dress counter. While reaching of
a programmed end value minus a programmed prewarning value the
concerned output ""Request cutter change" will be set. Simultaneously the
status message "cutter change" are shown on the user interface. The process
of the control are disabled after reaching the end value.
With the input signal "Acknowledge, cutter change" the counter will be reset to
"0". With it if applicable disable of the process will be again canceled. The
counter can also be reset to "0" before reaching the max. value.
The counter are related to the electrodes. Therefore inhibits such a counter only
welding programs of the same electrode.
The values range of the counter is 0 to max. 99.999.
If the end value is programmed to "0", then the counter function will be switched
off.
Bosch Rexroth AG 35/44
Features