Trane TR200 Operating Instructions Manual page 5

Safety
Safety Note
WARNING
Failure to follow instructions below could result in death or serious injury.
Safety Regulations
1. The frequency converter must be disconnected from mains if repair work is to be carried out. Check that the mains
supply has been disconnected and that the necessary time has passed before removing motor and mains plugs.
2. The [STOP/RESET] key on the keypad of the frequency converter does not disconnect the equipment from mains and is
thus not to be used as a safety switch.
3. Correct protective earthing of the equipment must be established, 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 currents are higher than 3.5 mA.
5. Protection against motor overload is set by par. 1-90
Motor Thermal Protection
initialized at 1.16 x rated motor current and rated motor frequency. For the North American market: The ETR
functions provide class 20 motor overload protection in accordance with NEC.
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 passed before removing motor and mains
plugs.
7. Please note that the frequency converter has more voltage inputs than L1, L2 and L3, when load sharing (linking of DC
intermediate circuit) and external 24 Vdc have been installed. Check that all voltage inputs have been disconnected
and that the necessary time has passed before commencing repair work.
Warning against Unintended Start
1. 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 considerations make it necessary to ensure that no
unintended start occurs, these stop functions are not sufficient.
2. While parameters are being changed, the motor may start. Consequently, the stop key [STOP/RESET] must always be
activated; following which data can be modified.
3. A motor that has been stopped may start if faults occur in the electronics of the frequency converter, or if a temporary
overload or a fault in the supply mains or the motor connection ceases.
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 recommendations could result in death
or serious injury.
Before Commencing Repair Work
WARNING
Hazardous Voltage!
1. Disconnect the frequency converter from mains
2. Disconnect DC bus terminals 88 and 89
3. Wait at least the time mentioned in section General Warning above
4. Remove motor cable
Failure to follow recommendations could result in death or serious injury.
4
Motor Thermal
to data value [ETR trip] (default value) or data value [ETR warning]. Note: The function is
Protection. If this function is desired, set par. 1-90
WARNING
TR200 Embedded BACnet Operating Instructions