1 Safety
1.1.1 Copyright, Limitation of Liability and
Revision Rights
This publication contains information proprietary to Danfoss.
By accepting and using this manual the user agrees that the
information contained herein will be used solely for
operating equipment from Danfoss or equipment from other
vendors provided that such equipment is intended for
communication with Danfoss equipment over a serial
communication link. This publication is protected under the
Copyright laws of Denmark and most other countries.
Danfoss does not warrant that a software program produced
according to the guidelines provided in this manual will
function properly in every physical, hardware or software
environment.
Although Danfoss has tested and reviewed the documen-
tation within this manual, Danfoss makes no warranty or
representation, neither expressed nor implied, with respect
to this documentation, including its quality, performance, or
fitness for a particular purpose.
In no event shall Danfoss be liable for direct, indirect, special,
incidental, or consequential damages arising out of the use,
or the inability to use information contained in this manual,
even if advised of the possibility of such damages. In
particular, Danfoss is not responsible for any costs, including
but not limited to those incurred as a result of lost profits or
revenue, loss or damage of equipment, loss of computer
programs, loss of data, the costs to substitute these, or any
claims by third parties.
Danfoss reserves the right to revise this publication at any
time and to make changes to its contents without prior
notice or any obligation to notify former or present users of
such revisions or changes.
1.1.2 Safety Note
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 LCP 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 3.5mA.
5.
Protection against motor overload is set by
1-90 Motor Thermal Protection
. If this function is
desired, set
1-90 Motor Thermal Protection
to data
value [ETR trip] (default value) or data value [ETR
warning]. Note: The function is 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 24V DC have been installed. Check that all
voltage inputs have been disconnected and that
the necessary time has passed before commencing
repair work.
Safety
VLT
®
HVAC Drive Native BACnet Operating Instructions
2
MG.14.C1.02 - VLT
®
is a registered Danfoss trademark
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