Kollmorgen Digital MMC Control, Hardware Manual

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24 Kollmorgen - December 2011
MMC Smart Drive Hardware Manual
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INSTALLING THE MMC SMART DRIVE
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The cabinet door should open fully for easy access.
1. Lay out the positions for the drive and accessories in the enclosure.
2. Attach the drive to the cabinet, first using the upper mounting slots of the drive
and then the lower. The recommended mounting hardware is M5 metric(#10-32).
3. Tighten all mounting fasteners.
3.11 Drive System Grounding Procedures
The ground of the MMC Smart Drive power source must be connected directly to a
Single Point Ground (SPG) tie block. The tie block should be made of brass or
copper, bolted or brazed to the control cabinet. If the tie block is bolted rather than
brazed, scrape away paint or grease at the point of contact. Put star washers between
the tie block and the cabinet to ensure good electrical contact.
Metal enclosures of power supplies, drives, etc., should also have good electrical
contact with the SPG.
Metal enclosures of power supplies, drives, etc., should also have good electrical
contact with the SPG.
Devices to be connected directly to the Single Point Ground include:
• Plant safety ground.
• Protective earth ground(s) from the MMC Smart Drive power terminals.
• The metal panel or cabinet on which the MMC Smart Drive is mounted.
• “Common” or “0 V” lines from power supplies that p24 power to devices
and external power to the I/O modules and the devices to which they are con-
nected.
IMPORTANT
Post warnings according to National, State, or local codes for the voltage
present in the control cabinet. Diagrams included with this manual and rec-
ommendations may be modified if necessary so the wiring conforms to cur-
rent NEC standards or government regulations.
NOTE
This drive contains parts and assemblies that are sensitive to ESD (Electro-
static Discharge). Follow static control precautions during installation, test-
ing, service, or repair of this assembly. Parts and assemblies can be
damaged if proper precautions are not taken.
CAUTION
The Single Point Ground should be the only common point for all the ground
lines. If not, ground loops may cause current flow among components of the
system which can interfere with proper operation of the MMC Smart Drive.