Danfoss Holip HLP-V Series Інструкція з експлуатації - Сторінка 5
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■ 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 remov-
ing motor and mains plugs.
2. The [STOP/RESET] key on the control 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 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 na-
tional and local regulations.
4. The earth leakage currents are higher than 3.5
mA.
5. Protection against motor overload is not included
in the factory setting. If this function is desired,
set parameter 128 to data value ETR trip or data
value ETR warning.
Note: The function is initialised at 1.16 x rated
motor current and rated motor frequency. For the
North American market: The ETR functions pro-
vide class 20 motor overload protection in accor-
dance with NEC.
6. Do not remove the plugs for the motor and main
supply while the frequency converter is connected
to mains. Check that the mains supply has been
disconnected and that the necessary time has ex-
pired before removing motor and mains plugs.
7. Please note that the frequency converter has more
voltage inputs than L1, L2 and L3, w hen
loadsharing (linking of DC intermediate circuit) and
external 24 V DC have been installed.
Check that all voltage inputs have been discon-
nected and that the necessary time has passed
before repair work is commenced.
4
HLP-V Series
■ 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 adjustable frequency drive
is connected to the AC line. These stop functions
are NOT sufficient to ensure that no unintended
start occures and should NOT be used for per-
sonal safety considerations.
2. While parameters are being changed, the motor
may start. Consequently, the stop key "Stop/Re-
set" 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 adjustable frequency
drive, or if a temporary overload or a fault in the
AC line supply or the motor connection ceases.
■ Installation of mechanical brake
Do not connect a mechanical brake to the output
from the frequency converter before the relevant
parameters for brake control are parameterised.
(Selection of output in parameter 319, 321, 323 or
326 and cut-in current and frequency in param-
eter 223 and 225).
■ Use on isolated AC line
See section RFI Switch regarding use on isolated
AC line.
It is important to follow the recommendations re-
garding installation on IT line, since sufficient pro-
tection of the complete installation must be
observed. Not taking care using relevant monitor-
ing devices for IT line supply may result in damage.