5.3.6 Second Connection Point of Equipment Grounding Conductor
Parts of the installation with attached KSM02/KMS02 must be connected to
the equipment grounding system of the installation. The housings of the
KSM02/KMS02 then are connected to the equipment grounding system of
the installation via the flange. This connection is required in addition to the
equipment grounding conductor in the hybrid cable, because the leakage cur‐
rent of a distributed servo drive KSM02/KMS02 is greater than 3.5 mA.
Additionally connect the KSM02/KMS02 housing via a second equipment
grounding conductor to the equipment grounding system of the installation,
when KSM02/KMS02 is attached to parts of the installation which
● have bad electroconductive properties
or
● cannot be connected to the equipment grounding system of the installa‐
tion.
High housing voltage and high leakage cur‐
rent! Danger to life, risk of injury by electric
shock!
Connect the second connection point of the equipment grounding conductor
at KSM02/KMS02 to the equipment grounding system of the installation,
when the electric resistance across the mechanical holder of the flange and
the equipment grounding system of the installation is greater than 5 ohms.
The first equipment grounding conductor is routed via the hybrid
cable from X103.1 / X103.2 (KSM02/KMS02) to connection point
X54 (KCU02) and connected to the equipment grounding system
of the installation via KCU02.
Second Equipment Grounding Conductor On the Housing
View Connection Signal name Function
Equipment
grounding
conductor
Second connection point of equipment
grounding conductor
Is used to connect KSM02/KMS02 to a
grounded part of the installation, e.g. the
machine base
Thread M5 (for ring cable lug) Unit Min. Max.
Tightening torque Nm 2,6 3,1
Cable cross section stranded wire
mm
2
2,5 4
Connection cable AWG 14 12
Fig.5-15: Second Connection Point of Equipment Grounding Conductor, Prop‐
erties
DOK-INDRV*-KSM02*UL***-IN01-EN-P
Rexroth IndraDrive Mi Distributed Servo Drive KSM02
Bosch Rexroth AG 47/81
Instructions for Use
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