Brochure

Electronic (E) Bypass Options are companion packages for SED2 Variable
Frequency Drives that provides electronic control and simple keypad
operation to streamline installation, simplify control wiring, and improve
system reliability.
2-Contactor: Output and Bypass with
overload protection in bypass mode
3-Contactor (optional): Output, Bypass
and Input providing drive test function and
complete electrical isolation of drive
Input Device includes: disconnect, fused dis-
connect (optional) and circuit breaker (option-
al). All doors are interlocked and padlockable.
Reactor Options include: Line reactor mount-
ed in bypass option enclosure; line reactor (in
NEMA 1 enclosure) supplied separately; load
reactor mounted in bypass option enclosure
and load reactor (in NEMA 1 enclosure) sup-
plied separately.
E-Bypass Control Features
Auto Bypass allows user to send the motor to
bypass mode based on the drive’s program-
mable relay, typically set to fault.
Two Enable Inputs are generally used for
safety tie-ins; the motor will not operate in
drive or bypass when open.
Common Remote Start/Stop can be used in
both drive and bypass mode.
Essential Services Mode is typically used for
smoke purge; the motor goes to bypass regard-
less of the selected mode. No call to stop will
have an effect, including open safety or stop
commands. Only turning the power off or
opening this contact will stop the motor.
Options
• LON® Interface
• Modbus® Interface
• BACnet® Interface
• Advanced Operator Panel (AOP) Module
VFD with Electronic (E)
Bypass Option
E-Bypass Features
• Enhanced visual interface for improved
monitoring and diagnostics
• E-Bypass guarantees continuous operation
even it VFD fails
• Electronic touch-sensitive keypad
• Service mode isolates drive from the
control scheme
• Six relay outputs for indication of operation
• LED indicators for monitoring and
operation
• Six digital inputs
• Contactors electrically and mechanically
interlocked