Danfoss MCA 122 Modbus TCP Operating Instructions Manual page 3

Safety
Safety
Safety
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 is used solely
for operating equipment from Danfoss or equipment from
other vendors if such equipment is intended for communi-
cation with Danfoss equipment over an Ethernet serial
communication link. This publication is protected under
the Copyright laws of Denmark and most other countries.
Danfoss does not guarantee that a software program
produced according to the guidelines provided in this
manual functions 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, either express or 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 the damages 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 change its contents without prior notice or any
obligation to notify previous users of such revisions or
changes.
MCA 122 Modbus TCP
Safety Note
HIGH VOLTAGE
The voltage of the frequency converter is dangerous
whenever connected to mains. Incorrect installation of the
motor, frequency converter, or fieldbus may damage the
equipment, cause serious personal injury, or death.
Consequently, the instructions in this manual, as well as
national and local rules and safety regulations, must be
complied with.
Safety Regulations
®
MG90P202 - VLT is a protected Danfoss trademark
WARNING
1. The frequency converter must be disconnected
from mains before carrying out repair work.
Check that the mains supply has been discon-
nected and that the necessary time has passed
before removing motor and mains plugs.
2. The off-command on the serial bus does not
disconnect the equipment from mains and should
not be used as a safety switch.
3. Correct protective earthing or 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. The earth leakage currents are higher than 3.5
mA.
5. 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.