1070080029 / 05
Bosch Rexroth AG
Electric Drives
and Controls
PST 6xx0
|
|
300
/330
Dismantling and replacement
The MAINS VOLTAGE OK LED is extinguished.
PST 6xx0
LOGIC LED
MAINS VOLTAGE OK LED
Fig.52:
Display at the timer unit
2.
If the 24 V supply of the control logic (infeed at X4) is generated
externally, switch off the 24 V supply.
The LOGIC LED at the front side of the unit is extinguished.
3.
Block the unit-related connections for compressed air supply and, if
necessary, the cooling water supply and discharge should this be
necessary manually. Make sure that inadvertent opening is avoided.
Then disconnect the existing water conduits.
4.
Use suitable measuring equipment and an appropriate measuring
method to ensure that the mains and transformer connections of the
respective unit are de-energized.
Take into consideration that internal voltages need at least 5 minu
tes for discharge after switching the power supply off. Do not touch
the mains and transformer connection of the unit during this period of
time.
5.
If the unit is replaced, write down all switch positions on the front side
of the timer.
Set the switches on the new unit identically.
If possible, continue to use the withdrawable Ethernet module in the
new unit. A reconfiguration of the relevant interfaces is thus not ne
cessary.
6.
Make sure that all connections to the front side of the timer are
marked clearly and then pull off the connections.
7.
Loosen the connections for mains and transformer connections.
8.
Make sure that the unit cannot make uncontrolled movements after
loosening of the retaining screws/quick-action clamps and then
loosen the retaining screws/quick-action clamps.
9.
Remove the unit.
For transport and storage, please take into account the information
provided in Section „Transport and storage“ on page 253 and for dis
posal the information provided in Section „Disposal“ on page 303.
10.
When dismantling the unit, make sure that all remaining connection
cables are sufficiently insulated and protected against contact.
Dismantling has now been completed.
Additional steps if the dismantled unit is to be replaced:
11.
Install the new unit (refer to Section „Assembly“ from page 255).
12.
Exit the BOS, if it is active.
The procedure is described in the online help of the BOS (keyword
„Exiting BOS 6000“).
ENGLISH
Summary of Contents for Rexroth PST 6 0 Series
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