NORD Drivesystems BU0500 - Manual (Page 14)

SK 500E – Users Manual for Frequency Inverters
14 BU 0500 GB-1013
1.4.1 Explanation of labels used
DANGER
Indicates an immediate danger, which may result in death or serious injury.
WARNING Indicates a possibly dangerous situation, which may result in death or
serious injury.
CAUTION Indicates a possibly dangerous situation, which may result in slight or
minor injuries.
NOTICE Indicates a possibly harmful situation, which may cause damage to the
product or the environment.
Note
Indicates hints for use and useful information.
Pos : 23 /Anl eitungen/ Elektroni k/FU und Start er/ 1. Allgemei nes/ 1. 4. 2 Auflis tung der Sicherheits- und I nst allati onshi nweise @ 1\ mod_1341560303401_388. doc x @ 30325 @ 3 @ 1
1.4.2 List of Safety and installation information
DANGER Danger of electric shock
The frequency inverter operates with a dangerous voltage. Touching certain conducting components (connection
terminals, contact rails and supply cables as well as the PCBs) will cause electric shock with possibly fatal
consequences.
Even when the motor is at a standstill (e.g. caused by an electronic block, blocked drive or output terminal short-
circuit), the line connection terminals, motor terminals and braking resistor terminals, contact rails, PCBs and
supply cables may still conduct hazardous voltages. A motor standstill is not identical to electrical isolation from
the mains.
Only carry out installations and work if the device is disconnected from the voltage and wait at least 5
minutes after the mains have been switched off! (The equipment may continue to carry hazardous voltages for
up to 5 minutes after being switched off at the mains).
Follow the 5 Safety Rules (1. Switch off the power, 2. Secure against switching on, 3, Check for no voltage, 4.
Earth and short circuit, 5. Cover or fence off neighbouring live components).
DANGER Danger of electric shock
Even if the drive unit has been disconnected from the mains, a connected motor may rotate and possible
generate a dangerous voltage. Touching electrically conducting components may then cause an electric shock
with possible fatal consequences.
Therefore prevent connected motors from rotating.