3
Safety notes
Protective separation
Operating Instructions – Explosion-Protected MOVI-SWITCH
®
Drives
12
3.7
Protective separation
The product meets all requirements for protective separation of power and electronics
connections in accordance with EN 61800-5-1. The connected signal circuits must
meet requirements according to SELV (
S
afety
E
xtra
L
ow
V
oltage) or PELV (
P
rotective
E
xtra
L
ow
V
oltage) to ensure protective separation. The installation must meet the re-
quirements for protective separation.
3.8
Startup/operation
Observe the safety notes in chapters Startup and "Operation" (→
37) in this docu-
mentation.
Make sure the connection boxes are closed and screwed before connecting the sup-
ply voltage.
Depending on the degree of protection, products may have live, uninsulated, and
sometimes moving or rotating parts, as well as hot surfaces during operation.
When the device is switched on, dangerous voltages are present at all power connec-
tions as well as at any connected cables and terminals. This also applies even when
the product is inhibited and the motor is at standstill.
Do not separate the connection to the product during operation. This may result in
dangerous electric arcs damaging the product.
If you disconnect the product from the voltage supply, do not touch any live compo-
nents or power connections because capacitors might still be charged. Observe the
following minimum switch-off time:
1 minute.
Observe the corresponding information signs on the product.
The fact that the operation LED and other display elements are no longer illuminated
does not indicate that the product has been disconnected from the supply system and
no longer carries any voltage.
Mechanical blocking or internal protective functions of the product can cause a motor
standstill. Eliminating the cause of the problem or performing a reset may result in the
drive restarting automatically. If, for safety reasons, this is not permitted for the drive-
controlled machine, first disconnect the product from the supply system and then start
troubleshooting.
Risk of burns: The surface temperature of the product can exceed 60 °C during opera-
tion. Do not touch the product during operation. Let the product cool down before
touching it.
25988670/EN – 04/2020
