Safety Regulations; Warning Against Unintended Start - Danfoss VLT Brook Crompton Motor FCM 300 Design Manual

Introduction
NOTICE
It is the user's or certified electrician's responsibility to
ensure correct earthing and protection in accordance
with applicable national and local requirements and
standards.

1.1.5 Safety Regulations

•
The VLT DriveMotor (FC motor) must be discon-
nected from mains if repair work is to be carried
out.
Check that the mains supply has been discon-
nected and that the necessary time has passed (4
minutes).
•
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.
Use of RCD's (ELCB relays) is described in 4.1.2
Earth Leakage Current .
•
The earth leakage currents are higher than 3.5
mA. This means that the FC motor requires a
fixed, permanent installation as well as reinforced
protective earthing.

1.1.6 Warning against Unintended Start

•
The motor can be brought to a stop by means of
digital commands, bus commands, or references,
while the frequency converter is connected to
mains.
Promotion
Brochure
MB.03.CX.YY
Articles
MZ.03.AX.YY
Illustration 1.1 Available literature for FCM 300 Series
®
VLT DriveMotor FCM Series
All
Misc.
users
Design
Quick Setup
Guide
MG.03.FX.YY
MG03BXYY
®
MG03BA02 - VLT is a registered Danfoss trademark
If personal safety considerations make it
necessary to ensure that no unintended start
occurs, these stop functions are not sufficient.
•
While parameters are being changed, the motor
may start.
•
A motor that has been stopped may start if faults
occur in the electronics of the FC motor, or if a
temporary overload or a fault in the mains supply
ceases.
1.2 Introduction
Specific technical publications on the FCM 300 series:
Design Guide:
Gives all required information for design
purposes, and gives a good insight into
the product concept, product range,
technical data, control, programming, etc.
Quick Setup:
Helps the users to quickly get their FCM
300 Series motor unit installed and
running.
The Quick Setup is always delivered with
the unit.
Table 1.3
For further information on the FCM 300 Series, contact the
local Danfoss supplier.
PROFIBUS-
MCT 10 Setup
Manual
Software Manual
MG.03.EX.YY
MG10RXYY
X =
YY =
Data sheet
MD.03.AX.YY
version number
language
5
1 1