Danfoss VLT Series Programming Manual page 19

Introduction
WARNING
GROUNDING HAZARD
The ground leakage current is >3.5 mA. Improper
grounding of the ISD 510 servo system components may
result in death or serious injury.
•
For reasons of operator safety, ground the
components of the ISD 510 servo system
correctly in accordance with national or local
electrical regulations and the information in this
manual.
WARNING
HIGH VOLTAGE
The ISD 510 servo system contains components that
operate at high voltage when connected to the electrical
supply network.
A hazardous voltage is present on the servo drives and
the SAB whenever they are connected to the mains
network.
There are no indicators on the servo drive or SAB that
indicate the presence of mains supply.
Incorrect installation, commissioning, or maintenance can
lead to death or serious injury.
•
Installation, commissioning, and maintenance
may only be performed by qualified personnel.
WARNING
UNINTENDED START
The ISD 510 servo system contains servo drives and the
SAB that are connected to the electrical supply network
and can start running at any time. This may be caused
by a fieldbus command, a reference signal, or clearing a
fault condition. Servo drives and all connected devices
must be in good operating condition. A deficient
operating condition may lead to death, serious injury,
damage to equipment, or other material damage when
the unit is connected to the electrical supply network.
•
Take suitable measures to prevent unintended
starts.
WARNING
UNINTENDED MOVEMENT
Unintended movement may occur when parameter
changes are carried out immediately, which may result in
death, serious injury, or damage to equipment.
•
When changing parameters, take suitable
measures to ensure that unintended movement
cannot pose any danger.
MG36D102
Programming Guide
WARNING
DISCHARGE TIME
The servo drives and the SAB contain DC-link capacitors
that remain charged for some time after the mains
supply is switched off at the SAB. Failure to wait the
specified time after power has been removed before
performing service or repair work could result in death
or serious injury.
•
Number
0–64 servo drives
Table 1.4 Discharge Time
NOTICE
Never connect or disconnect the hybrid cable to or from
the servo drive when the ISD 510 servo system is
connected to mains or auxiliary supply, or when voltage
is still present. Doing so damages the electronic circuitry.
Ensure that the mains supply is disconnected and the
required discharge time for the DC-link capacitors has
elapsed before disconnecting or connecting the hybrid
cables or disconnecting cables from the SAB.
NOTICE
Full safety warnings and instructions are detailed in the
®
VLT Integrated Servo Drive ISD 510 System Operating
Instructions.
Danfoss A/S © 01/2017 All rights reserved.
To avoid electrical shock, fully disconnect the
SAB from the mains and wait for at least the
time listed in Table 1.4 for the capacitors to fully
discharge before carrying out any maintenance
or repair work on the ISD 510 servo system or
its components.
Minimum waiting time (minutes)
10
1 1
17