Technical Specifications; Electrical Control Characteristics; Operational Safety Characteristics; Installation According To The European Directive Of Electromagnetic Compatibility - WEG CFW-11 User Manual

Installation and Connection
In order to drive the motor again, it is required to apply STO1 and STO2 signals again (to close terminals 13
to 23 and 23 to 24) and apply a pulse on inverter DI1 input (START).

3.3.4 Technical Specifications

3.3.4.1 Electrical Control Characteristics

Safety stop function inputs
External safety relay specifications
(only when SS1 function is required
according to IEC/EN 61800-5-2
and IEC/EN 60204-1 standards)
refer to Figure 3.26 on page 3-43

3.3.4.2 Operational Safety Characteristics

3
Protection
3.4 INSTALLATION ACCORDING TO THE EUROPEAN DIRECTIVE OF ELECTROMAGNETIC
COMPATIBILITY
The CFW-11 inverters with frame sizes F, G and H feature internal RFI filter to reduce the electromagnetic
interference.
These inverters, when properly installed, meet the requirements of the electromagnetic compatibility directive
''EMC Directive 2014/30/EU''.
The CFW-11 inverter series has been designed only for industrial applications. Therefore, the emission limits
of harmonic currents defined by the standards EN 61000-3-2 and EN 61000-3-2/A14 are not applicable.
ATTENTION!
For using models with internal RFI filters in IT networks follow the instructions on
Networks on page

3.4.1 Conformal Installation

For the conformal installation use:
1. Shielded output cables (motor cables) with the shield connected at both ends, motor and inverter, by means
of a low impedance to high frequencies connection.
Use the clamps supplied with the product, making sure there is a good contact between the shield and that
clamp.
3-44 | CFW-11
XC25:1-2, XC25:3-4 2 independent inputs for Safety Stop function
Power supply: 24 Vdc (max. 30 V)
Impedance: 960 Ω
State 0 if < 2 V, state 1 if > 17 V
General requirements IEC 61508 and/or EN 954-1 and/or ISO 13849-1
Output requirements Number of current paths: 2 independent paths (one for each STO path)
Switching voltage capability: 30 Vdc per contact
Switching current capability: 100 mA per contact
Maximum switching delay between contacts: 100 ms
Example Type/manufacturer: WEG/Instrutech CPt-D
Of the machine Safety Stop function which forces stopping and/or prevents the motor from
restarting unintentionally, conforming to EN 954-1 / ISO 13849-1 category 3,
IEC/EN 61800-5-2 and IEC/EN 60204-1
Of the system process Safety Stop function which forces stopping and/or prevents the motor from
restarting unintentionally, conforming to IEC/EN 61508 level SIL2 and IEC/EN
61800-5-2
3-22.
Item 3.2.3.1.2 IT