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6.3.9
Second connection point of equipment grounding conductor
Parts of the installation with attached KSM0x/KMS0x have to be connected to
the equipment grounding system of the installation. The housings of KSM0x/
KMS0x then are connected to the equipment grounding system of the instal‐
lation via the flange. This connection is required in addition to the equipment
grounding conductor in the hybrid cable, because the leakage current of a
KSM0x/KMS0x servo drive is greater than 3.5 mA.
Additionally connect the KSM0x/KMS0x housing via a second equipment
grounding conductor to the equipment grounding system of the installation, if
KSM0x/KMS0x 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 from electric
shock!
WARNING
Connect the second connection point of equipment grounding conductor at
KSM0x/KMS0x to the equipment grounding system of the installation, if the
electric resistance between the mechanical holder of the flange and the
equipment grounding system of the installation is greater than 5 ohm.
If you would like to measure the resistance, the following conditions previous‐
ly must have been complied with:
●
The installation has been switched off
(This avoids parasitic leakage currents.)
●
The hybrid cables have not been connected to the drive
(This disables the first equipment grounding connection via the hybrid
cable.)
Risk of damage to the devices by spark dis‐
charge of static charges
NOTICE
In some applications (e.g., printing or packaging), high static charges can de‐
velop. Make sure that these charges can be directly discharged against
ground at their point of origin. Therefore, connect the
point of equipment grounding conductor
of the devices to the equipment
grounding system of the installation.
The first equipment grounding conductor is routed via the hybrid
cable from X103.1 / X103.2 (KSM0x/KMS0x) to the connection
point X54 (KCU02) and connected to the equipment grounding
system of the installation via KCU02.
Bosch Rexroth AG
DOK-INDRV*-KCU02+KSM02-PR03-EN-P
160/337
Rexroth IndraDrive Mi Drive Systems with KCU02 KSM02, KMS02/03, KMV03, KNK03
Connection points
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01