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2.1.7 Safe Stop of the Adjustable Frequency Drive (optional)
For versions fitted with a safe stop terminal 37 input, the adjustable frequency drive can perform the safety function
Safe Torque Off
(As defined by draft
CD IEC 61800-5-2) or
Stop Category 0
(as defined in EN 60204-1).
It is designed and deemed suitable for the requirements of Safety Category 3 in EN 954-1. This function is called safe stop. Prior to integrating and using
safe stop in an installation, a thorough risk analysis must be carried out on the installation in order to determine whether the safe stop functionality and
safety category are appropriate and sufficient. In order to install and use the Safe Stop function in accordance with the requirements of Safety Category
3 in EN 954-1, the related information and instructions of the VLT AQUA Drive Design Guide MG.20.NX.YY must be followed! The information and
instructions contained in the Instruction Manual are not sufficient for a correct and safe use of the safe stop functionality!
2.1.8 IT Line Power
IT Line Power
Do not connect 400 V adjustable frequency drives with RFI filters to line supplies with a voltage between phase and ground of more
than 440 V.
For IT line power and delta ground (grounded leg), AC line voltage may exceed 440 V between phase and ground.
par. 14-50
RFI 1
can be used to disconnect the internal RFI capacitors from the RFI filter to ground. If this is done, it will reduce the RFI performance
to A2 level.
2 Safety
VLT
®
AQUA Drive
Instruction Manual
2-4
MG.20.M5.22 - VLT
®
is a registered Danfoss trademark
2
Содержание vlt aqua
Страница 4: ...Contents VLT AQUA Drive Instruction Manual MG 20 M5 22 VLT is a registered Danfoss trademark...
Страница 12: ...2 Safety VLT AQUA Drive Instruction Manual 2 6 MG 20 M5 22 VLT is a registered Danfoss trademark 2...
Страница 16: ...3 Introduction VLT AQUA Drive Instruction Manual 3 4 MG 20 M5 22 VLT is a registered Danfoss trademark 3...