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Installation/Operation Supplement
70392201 (EN)
20
Electrical Requirements
Grounding Instructions
NOTE: To ensure protection against shock, this
tumbler MUST be electrically grounded in
accordance with the local codes or, in the absence of
local codes, with the latest edition of the National
Electrical Code ANSI/NFPA No. 70.
In the event of malfunction or breakdown, grounding
will reduce the risk of electric shock by providing a
path of least resistance for electric current. This
tumbler must be connected to a grounded metal,
permanent wiring system; or an equipment grounding
conductor must be run with the circuit conductors and
connected to the appropriate ground location.
● Metal conduit and/or BX cable is not considered
ground.
● Connecting the Neutral from the electrical
service box to the tumbler ground screw does not
constitute a ground.
● A dedicated ground conduit (wire) must be
connected between the electrical service box
ground bar and the tumbler ground screw.
All manually operated models are factory-equipped
with an emergency stop button on the front panel.
NOTE: Activation of the emergency stop button
stops all machine control circuit functions, but
DOES NOT remove all electrical power from
machine.
NOTE: This manual is only a supplement. Refer to
installation/operation manual for full instructions.
WARNING
To reduce the risk of electric shock, fire,
explosion, serious injury or death:
• Disconnect electric power to the tumbler
before servicing.
• Close gas shut-off valve to gas tumbler
before servicing.
• Close steam valve to steam tumbler
before servicing.
• Never start the tumbler with any guards/
panels removed.
• Whenever ground wires are removed
during servicing, these ground wires
must be reconnected to ensure that the
tumbler is properly grounded.
W002
To reduce the risk of fire and electric
shock, check with a qualified serviceman
for proper grounding procedures. Improper
connection of the equipment grounding
conductor may result in a risk of electric
shock.
W068
To reduce the risk of fire and electric
shock, if electrical supply is coming from a
three phase service, DO NOT connect a
“High Leg” or “Stinger Leg” to a single
phase machine. On a three phase machine,
if there is a “High Leg” or “Stinger Leg” it
should be connected to L3.
W069
To reduce the risk of electrical shock,
de-energize the electrical circuit being
connected to the tumbler before making
any electrical connections. All electrical
connections should be made by a qualified
electrician. Never attempt to connect a live
circuit.
W409
WARNING
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.
W071
CAUTION