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Introduction
Epsilon Eb and EN Drives
The Epsilon Eb and EN drives are stand-alone, fully digital brushless servo drives designed
and built to reliably provide high performance and flexibility without sacrificing ease of use.
The use of State-Space algorithms make tuning very simple and forgiving. The drives are
designed to operate with up to a 10 :1 inertia mismatch right out of the box. Higher (50 :1 and
more) inertial mismatches are possible with two simple parameter settings.
The Epsilon Eb and EN base drives can be quickly configured to many applications in less
than 5 minutes with PowerTools FM software on a PC running Windows® 95, 98, NT 4.0
and 2000.
Complete diagnostics are provided for quick troubleshooting. A diagnostic display on the
front of the drive informs the user of the operational or fault status. The last 10 faults are
stored in non-volatile memory along with a time stamp for easy recall.
The EN
drives are designed to accept a line of function modules that further enhance its use
in various applications.
• FM-1 Speed Module offers the user eight digital Torque presets, two additional
Summation modes, and an Alternate Operating mode.
• FM-2 Indexing Module enables the user to initiate up to 16 different indexes, jogging, and
a single home routine.
• FM-3 and FM-3DN Programming Modules offer complex motion profiling. A complex
motion profile consists of two or more indexes that are executed in sequence such that the
final velocity of each index except the last is non-zero. Logical instructions between index
statements can provide a powerful tool for altering motion profiles ’on the fly’.
• FM-4 and FM-4DN Programming Modules offer complex motion profiling, along with
multi-tasking user programs. A complex motion profile consists of two or more indexes
that are executed in sequence such that the final velocity of each index except the last is
non-zero. Logical instructions between index statements can provide a powerful tool for
altering motion profiles ’on the fly’.
The FM Function modules define complex motion by a configuration file that includes setups
and function assignments. For the FM-3 and FM-4 modules, the configuration file also
includes programs. The configuration file is created using PowerTools FM or PowerTools
Pro. The FM-1 and FM-2 modules use PowerTools FM software, and the FM-3, FM-3DN,
FM-4, and FM-4DN modules use PowerTools Pro software. Setup views have the same look
and feel as dialog boxes. The wiring of input and output functions is done through
Epsilon Eb and EN Drives Reference Manual
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