634
Bosch Rexroth AG
| Tightening Technology
3 608 878 300
System 350
| 3 608 878 300/2019-03
7.8.4
Special features for CC-ErgoSpin and commissioning of the CC-CS351 compact system
7.8.4.1
Commissioning
CC-ErgoSpin hand-held nutrunner
The CC-ErgoSpin can only be used with servo amplifier firmware version 01V08 or higher. Make sure that
servo amplifier firmware version 01V08 or higher is installed.
The software "350CsFw-2350.elx" or higher must be installed on the standard CS351 compact system
intended for operation of the CC-ErgoSpin.
Configuration
The CC-ErgoSpin channel is configured and parameterized using the "BS350 operating system (V2.300
SP1 or higher).
The CC-ErgoSpin does not provide the setting option "Redundancy factor". The CC-ErgoSpin is
exclusively set using the "MCE factor". The "MCE factor" can be adjusted in the range 0.500 to 2.000.
The nutrunner torque derived from power supply was adjusted to a MCE factor of 1,000 using a reference
measuring system at the factory.
CC-CS351 compact system
The control software "350CsFw-2350.elx" or higher is required for operating the CC-CS351. This
software is already installed when the CC-CD351 is delivered.
7.8.4.2
Special features of the CC-ErgoSpin hand-held nutrunner
When the nutrunner is started, it requires an increased amount of current for mass acceleration. As the
CC-ErgoSpin detects the torque indirectly using the present motor current, this current peak may cause
the system to reach the programmed target torque early and to terminate or cancel the tightening
sequence.
To avoid the abortion of the tightening sequence, use the function "Start-up suppression". Refer to the
"Project planning" documentation of the Rexroth Tightening System 350. The "start-up suppression" is
the time in ms after the tightening step has been started during which the tightening process is not
evaluated. Therefore, the current peak during nutrunner start-up is not included in the evaluation.
The step start-up is only monitored if the speed is increased as compared to the previous step (positive
speed change).
The CC-ErgoSpin and CC-CS351 can be connected as of version V2.300 SP1 of the BS350.
CC-ErgoSpin hand-held nutrunners cannot be operated with the LTE350D servo amplifier.
CAUTION
Risk of damage to persons and property due to improper handling!
If the nutrunner is started on a bolt that is already tightened, the bolt may be torn off or the nutrunner
may turn around the bolt at a certain angle. This angle depends on the set speed and the duration of
the "start-up suppression". Depending on the tightening case the nutrunner turning around the bolt
may injure the operator (e.g. crushing).
Bear this in mind when setting the "start-up suppression".
It is advisable to use the function "start-up test".
To ensure the tightening is of a high quality, it is advisable to carry out a tightening case analysis
for every tightening case. For more information on this, please read the chapters "Tightening
processes" and "Working with the System".
Summary of Contents for Rexroth Tightening System 350
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