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 machine. 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 7 minutes after disconnecting the drive from the main supply
power before touching potentially live sections of the equipment (such as contacts) or remov-
ing any connections.
Capacitors can have dangerous voltages present up to 7 minutes after switching off the sup-
ply power. Always measure the voltage in the DC bus link at connector X14 at AKD-C and
wait until the voltage is below 50 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.
Functional Safety
The STO safety implementation on the AKD is certified. The safety circuit implementation
used for the safety function "Safe Torque Off" in the drive is suited for SIL 2 according to IEC
62061 and PLd / CAT3 according to ISO 13849-1. The assessment of the safety functions
according to EN13849 or EN 62061 must finally be done by the user.
Never modify the drive!
It is not allowed to modify the drive without permission by the manufacturer. Opening the
housing causes loss of warranty.
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Kollmorgen | kdn.kollmorgen.com | February 2018
