Siemens SIPROTEC 5 Operation Manual page 30

Expanding Devices
2.3 Surface-Mounting Devices with Detached On-Site Operation Panel
Bolt the on-site operation panels of the 2 modules to one another through the contact tab.
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Check that the bus connection is screwed on at the extreme left of the expansion module.
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Assembly and Commissioning
Reinstall the plastic screw covers.
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Use the supplied grounding cable to connect the expansion module with the device and reconnect the
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device to service ground.
Fit the device back onto the wall.
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Expand the on-site operation panel with the on-site operation panel of the expansion modules. Make
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sure that the bus connection is plugged in reliably and that the snap-in springs have engaged.
Bolt the on-site operation panels to one another through the contact tab.
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Check that the bus connection on the expansion module on the extreme right is covered.
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Connect all communication lines again.
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Extend the device configuration in DIGSI and load this configuration to the device.
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Resume operation of the device.
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30 SIPROTEC 5, Operation, Manual
C53000-G5040-C003-7, Edition 06.2016