Table of Contents
Advertisement
INSTALLATION
3.1 Mounting Your New Output Filter
Proper installation of the unit is important to the performance and normal operating life. It
should be installed in a location free from:
Corrosive gases or liquids
•
•
Excessive vibration
Airborne metallic particles
•
Open type filters should be installed in a panel by a qualified UL 508A panel shop. If wall-
mounted, mount the unit to a solid, non-flammable surface capable of bearing the weight
using the mounting brackets provided with the unit. Floor mounted filters should be attached
to the legs provided and fastened to the floor using concrete anchors or similar hardware.
3.2 Proper Ventilation
To maintain air circulation for adequate cooling, minimum clearance around the unit must be
maintained. Allow six inches on each side and top, and 18 inches below.
Ensure openings are not obstructed. If the unit is mounted in a small room, cabinet, or
building, ensure there is adequate ventilation to provide sufficient cooling for the unit.
3.3 Grounding
Properly ground the filter according to local electrical code.
•
Connect the ground lug to the branch circuit or service ground conductor.
•
Resistance to ground measurement must be 25 Ohms or less, according to the
•
National Electric Code.
3.4 Ground Fault Protection
Devices that utilize power switching electronics like variable frequency drives, emit high
leakage current so ground fault protection devices may not be compatible with a VFD and
output filter.
3.5 Overtemperature Switch
Phase Technologies output filters have an optional self-resetting overtemperature circuit with
a Normally Closed relay that will open when an internal temperature of 180°C is reached (+/-
5°C). An overtemperature relay is highly recommended to shut down the VFD if the internal
temperature reaches an unsafe level to prevent damage to the filter in rare cases when
components overheat due to abnormal operating conditions. If using a Phase Technologies
VFD, the overtemperature relay should be connected to one of the Auxiliary terminals and
the setting AUX SELECT should be set to CLOSED = RUN, OPEN = STOP.
Table 4 – Overtemperature Switch
Normally Closed (NC) Thermal Switch:
180°C open, +/-5°C
Voltage
250VAC
Current
8A
7 |
P a g e
Advertisement
Table of Contents
