Safety Precautions; Warning Against Unintended Start - Danfoss FCM305 56 Instruction Manual

Safety Precautions

1. The FCM 300 unit must be disconnected from
the AC line if repair work is to be carried out.
After the AC supply has been disconnected, be
sure the necessary time (4 min.) has passed
before removing line terminal wires.
2. The "Stop/Reset" key on the optional local
control pad or local operating panel of the FCM
300 unit DOES NOT disconnect the equipment
from the AC line and is NOT to be used as a
safety switch.
3. The installer must supply correct protective
grounding of the equipment and the user must
be protected against supply voltage in
accordance with the National Electrical Code
and local codes. Class 20 motor overload pro-
tection is provided internally.
4. The ground leakage currents are higher than 3.5
mA.
5. Use lifting points, if provided. Lift FCM 300 units
vertically only. Lifting points are provided to
support the weight of the FCM 300 only - do not
use lifting points when additional equipment is
attached.
6. Before installation, check unit for fan cover
damage, foot/mounting damage, shaft damage
and loose fasteners. Check nameplate data on
motor.
7. FCM 300 types 311-375 (over 44 lb/20 kg)
should be positioned by lifting machines only -
for your safety, do not attempt hand lifting. Refer
to "Handling the FCM 300" on page 6-5 for
actual weights.
8. Installation must be correctly fused and isolated
per CE directives.
MG.03.B6.2G - VLT is a registered Danfoss trademark
FCM 300 Series

Warning Against Unintended Start

1. The unit can be brought to a stop by means of
digital commands, bus commands, references or
a local stop, while the FCM 300 unit is
connected to the AC line.
These stop functions are NOT sufficient to
ensure that no unintended start occurs and
should NOT be used for personal safety
considerations.
2. While parameters are being changed, the motor
may start.
3. A FCM 300 unit that has been stopped may start
if faults occur int the electronics of the unit, or if a
temporary overload occurs or if there is an
interruption in the AC line supply.
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