Danfoss VLT 3500 HVAC, Руководство пользователя

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VLT
®
3500 HVAC
MG.35.B1.02 – VLT is a registered Danfoss trademark
Warnings 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 considera-
tions make it necessary to ensure that no
unintended start occurs, these stops are not suffi-
cient.
2. During programming of parameters, the motor
may start. Consequently, the "Stop/Reset" stop
key 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, a fault in the supply
mains or a fault in the motor connection ceases.
4. If the "Local/Hand" key is activated and the
"Local" reference is modified, the motor can only
be brought to a stop by means of the "Stop/
Reset" key.
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1.1 Safety
For the North American market
CAUTION: It is the responsibility of the user or person
installing the drive to provide proper grounding and
branch circuit protection for incoming power and
motor overload according to National Electrical Codes
(NEC) and local codes.
The Electronic Thermal Relay (ETR) in UL listed VLT ´ s
provides class 20 motor overload protection in accor-
dance with NEC in single motor applications, when
parameter 315 is set for "TRIP" and parameter 107 is
set for rated motor (nameplate) current.
Effective from software version 1.10.
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The voltage of the frequency converter
is dangerous whenever the equipment
is connected to mains. Incorrect instal-
lation of the motor or the frequency converter may
cause damage to the equipment, serious personal
injury or death.
Consequently, the instructions in this Design Guide,
as well as national and local safety regulations, must
be complied with.
Touching the electrical parts may be fatal - even after
disconnection from mains:
Using VLT 3502-3562 HVAC: wait 4 minutes
Using VLT 3542-3562 (230 V) HVAC: wait 14 minutes
Using VLT 3575-3800 HVAC: wait 14 minutes
Safety regulations
1. The frequency converter must be disconnected
from mains if repair-work is to be carried out.
2. The "Stop/Reset" key on the operating panel 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 grounding 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. Earth currents are higher than 3 mA.
Warning:
Touching the electrical parts may be fatal - even after the
equipment has been disconnected from mains.
Using VLT 3502-3562 HVAC: wait 4 minutes
Using VLT 3542-3562 (230 V) HVAC: wait 14 minutes
Using VLT 3575-3800 HVAC: wait 14 minutes
Product Introduction ■ ■ ■ ■ ■