Types Of Installation - WEG CFW500 Series Safety Manual

For XC7 cabling, consider the following:
Wire stripping length: 6.0 mm (0.236 in).
„
Wire gauge from 0.5 mm² (20 AWG) to 1.5 mm² (16 AWG).
„
Maximum tightening torque of 0.40 Nm (3.5 lbf.in).
„
Run the cables separated from the remaining circuits (power, 110 V / 220 V control, etc.).
„
NOTE!
The other control signals that are not related to safety (digital/analog inputs
and outputs) are connected to one of the control accessories of the frequency
inverter. The cables for these control signals must not exceed 30 m when the
CFW500 frequency inverter is equipped with the CFW500-SFY2.

2.3 TYPES OF INSTALLATION

There are two types of installation, depending on the type of the safety device that requests
the safety function:
Installation with dry contact devices, i.e. devices that have electromechanical output
„
(conventional relays, for example).
Installation with OSSD (Output Signal Switching Device), i.e. solid state devices that have
„
outputs containing test pulses (light curtain, for example).
Figure 2.2 on page 13
describes its operation.
+ 24 Vdc
STO1
STO2
GND
illustrates the installation with dry contacts, and
1
2
3
4
5
6
Figure 2.2: Installation using dry contacts
Installation
Table 2.3 on page 14
CFW500 | 13