ITT S-DRIVE IM213 User Manual

Hazardous

voltage

Do not block the heat sink (fins) and fans and do not set anything on the units.

The controller access cover should always be securely fastened to the control box due

to the dangerous voltage/shock hazard inside the unit. A lock can be used to prevent

unwanted entry.

Installation and maintenance MUST be performed by properly trained and qualified personnel.

Always follow the National Electrical Code (NEC) or Canadian Electric Code (CEC), as well as all

state, local and provincial codes when wiring the system.

The type of transformer and the connection configuration feeding a drive plays an important role in its performance

and safety. The following is a brief description of some of the more common configurations and a discussion of their

virtues and shortcomings. Always ask what type of power system the site has before sizing the drive.

This configuration is one of if not the most common. It provides rebalancing of unbalanced voltage with a 30

degree phase shift. Depending on the output connections from the drive to motor, the grounded neutral may

be a path for common mode current caused by the drive output.