Trane TR150 Programming Manual page 5

Introduction
1 1
WARNING
Safety Regulations
1. The mains supply to the frequency converter
must be disconnected whenever repair work is
to be carried out. Check that the mains supply
has been disconnected and that the necessary
time has elapsed before removing motor and
mains supply plugs.
2. The [OFF] button on the control panel of the
frequency converter does not disconnect the
mains supply and consequently it must not be
used as a safety switch.
3. The equipment must be properly earthed, the
user must be protected against supply voltage
and the motor must be protected against
overload in accordance with applicable national
and local regulations.
4. The earth leakage current exceeds 3.5 mA.
5. Protection against motor overload is not
included in the factory setting. If this function is
desired, set 1-90 Motor Thermal Protection to
data value ETR trip 1 [4] or data value ETR
warning 1 [3].
6. Do not remove the plugs for the motor and
mains supply while the frequency converter is
connected to mains. Check that the mains
supply has been disconnected and that the
necessary time has elapsed before removing
motor and mains plugs.
7. Please note that the frequency converter has
more voltage sources than L1, L2 and L3, when
load sharing (linking of DC intermediate circuit).
Check that all voltage sources have been
disconnected and that the necessary time has
elapsed before commencing repair work.
Failure to follow recommendations could result in death
or serious injury.
4
TR150 Programming Guide
WARNING
Warning against unintended start
1.
2.
3.
Consequently, disconnect all electric power, including
remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not
be inadvertently energized. Failure to follow recommen-
dations could result in death or serious injury.
Disconnect all electric power, including remote disconnects
before servicing. Follow proper lockout/tagout procedures
to ensure the power can not be inadvertently energized.
Failure to follow recommendations could result in death or
serious injury.
1.
BAS-SVP16A-EN - Rev. 2013-09-05
The motor can be brought to a stop by means
of digital commands, bus commands, references
or a local stop, while the frequency converter is
connected to mains. If personal safety consider-
ations (e.g. risk of personal injury caused by
contact with moving machine parts following
an unintentional start) make it necessary to
ensure that no unintended start occurs, these
stop functions are not sufficient. In such cases
the mains supply must be disconnected or the
Safe Stop function must be activated.
The motor may start while setting the
parameters. If this means that personal safety
may be compromised (e.g. personal injury
caused by contact with moving machine parts),
motor starting must be prevented, for instance
by use of the Safe Stop function or secure
disconnection of the motor connection.
A motor that has been stopped with the mains
supply connected, may start if faults occur in
the electronics of the frequency converter,
through temporary overload or if a fault in the
power supply grid or motor connection is
remedied. If unintended start must be
prevented for personal safety reasons (e.g. risk
of injury caused by contact with moving
machine parts), the normal stop functions of
the frequency converter are not sufficient. In
such cases the mains supply must be discon-
nected or the Safe Stop function must be
activated.
Control signals from, or internally within, the
frequency converter may in rare cases be
activated in error, be delayed or fail to occur
entirely. When used in situations where safety is
critical, do not rely on these control signals.