AKD-N Installation | 3 Safety
Hot surface!
Drives may have hot surfaces during operation. The housing can reach temperatures above
80°C. Risk of minor burns! Measure the temperature, and wait until the housing has cooled
down below 40 °C before touching it.
Earthing!
It is vital that you ensure that the drive is safely earthed to the PE (protective earth) system
in the maschine. Risk of electric shock. Without low-resistance earthing no personal pro-
tection can be guaranteed.
Leakage Current!
Since the leakage current to PE is more than 3.5 mA, in compliance with IEC61800-5-1 the
PE connection must either be doubled or a connecting cable with a cross-section >10 mm²
must be used. Deviating measures according to regional standards might be possible.
High voltages!
The equipment produces high electric voltages up to 900 V. Do not open or touch the equip-
ment during operation. Keep all covers closed. The built-in LED does
not
safely indicate the
real voltage level.
During operation, drives may have uncovered live sections, according to their level of enclos-
ure protection. Wait at least seven minutes after disconnecting the drive from the main sup-
ply power before touching potentially live sections of the equipment (such as contacts) or
removing any connections.
Capacitors can have dangerous voltages present up to seven minutes after switching off the
supply power. Always measure the voltage in the DC bus link at connector X14 at AKD-C
and wait until the voltage is below 60 V before handling components.
Never undo any electrical connections to the drive while it is live. There is a danger of elec-
trical arcing with damage to contacts and personal injury.
Reinforced Insulation
Thermal sensors, motor holding brakes and feedback systems built into the connected motor
must have reinforced insulation (according to IEC61800-5-1) against system components
with power voltage, according to the required application test voltage. All Kollmorgen com-
ponents meet these requirements.
Never modify the drive!
It is not allowed to modify the drive without permission by the manufacturer. Opening the
housing causes loss of warranty.
12
Kollmorgen | December 2014
