DANGER
Death by electrocution possible due to live parts with more than 50 V!
⇒ Do not repair any connection lines provisionally. If the slightest defects are
detected in the cable sheath, the system must be put out of operation immedi‐
ately. Then the cable must be replaced.
Check the protective conductor connection for proper state and tight seat at
regular intervals and replace it, if necessary.
12.4.5
Holding Brakes
chapter 9.11 "Holding Brakes (Ex)" on page 90
12.4.6
Battery Change
Drive devices of Bosch Rexroth observe voltage of battery safely and give just
in time a warning "battery change".
DANGER
Danger of explosion! Death, heavy personal injury and material damage
by opening the motor housing in hazardous areas!
⇒ Do not loosen housing screws when the motor is in hazardous operation.
⇒ The MKE motor must be brought out of the hazardous area for changing
the battery.
Change battery when machine is
under load
Changing the battery should be made, when machine is under load. This is
necessary to avoid an overrun in the motor encoder (switch off control voltage
can cause loss of absolute values).
Battery change
The following tools and spare parts are needed:
●
Hex screwdriver for
–
MKE037 Size 2.5
–
MKE047 Size 3
–
MKE098 Size 4
●
Needle-nosed pliers
●
Torque wrench with setting range 1.3-6.8 Nm.
●
New, ready-made battery for
–
MKE037 and MKE047 MNR: R911277133
–
MKE098 MNR: R911265187
DANGER
Danger to life and limb due to electrical power!
To change the battery you must work when machine is under load. Therefore:
●
Any work required on the electric system must only be carried by skilled
electricians.
●
Shut down the power supply at the drive control systems and save against
re-energization!
DANGER
Dangerous movements! Danger to life, severe corporal or material dam‐
age!
⇒ Shut down power supply at the drive control systems and save against re-
energization!
⇒ Change battery on drive control systems only when control voltage is
switched on. Is the control voltage is switched off, while the battery is removed,
the absolute value is lost and, when the machine will be switched on, a failing
movement could be possible.
Project Planning Manual | Rexroth MKE Synchronous Motors
Electric Drives
and Controls
| Bosch Rexroth AG 113/131
Startup, Operation and Maintenance
