Bosch Rexroth MM7.10 - Installation

RE 95178-01-B/2022-06-22, BoschRexrothAG
Installation | BODAS inertial sensor MM7.10 17/24
7.3.2 Installation
The MM7.10 must be fastened with two screws prior to operation.
The appropriate size can be found in the offer drawing.
Tighten the M6 nut with a tightening torque of 6
+ 2
−1
Nm.
The screws must not be tightened with impact screwdrivers, as the high impact
force of the screwdriver and the resulting acceleration can damage the silicone
micromachines inside the MM7.10.
BoschRexroth recommends the use of electronically controlled screwdrivers
(torque and angle of rotation) for mounting.
It is also not permitted to subject the area near the mounted MM7.10 to excessive
shock loads, as this would result in accelerations outside the safe operating range.
High accelerations can be caused, for example, by hammer blows, the stopping
of workpiece carriers, and the use of automatic screwdrivers for screwing,etc.
Exceptions are possible during repair work, e.g. in the service.
The MM7.10 must be mounted without exerting force on the MM7.10 housing or
deforming the mounting location.
The use of tools such as ahammer or crowbar may cause tension and damage on
the MM7.10. An MM7.10 that has been damaged during installation on the vehicle
is detected by aspecific MM7.10 internal function and communicated to the ECU
by the CAN.
The MM7.10 connector must not be connected/disconnected while supply voltage
is applied to the wiring harness.
Do not install or use the MM7.10 if the housing is deformed or damaged.
During the mounting on the vehicle, the housing of the MM7.10 is exposed to
various influences, e.g. due to the fixing and the tools. These values, which are
determined by atriaxial accelerometer mounted on the PCB of the MM7.10,
must not exceed the specified range.
10000
1000
100
10
1
10001001010.1
Safe working range
Limit value
Impact duration [ms]
Acceleration [g]
Fig. 5: Spectrum
Spectrum during mounting