WEG CFW-11 Installation And Operation Manual - page 8
Safety Stop Function
8 | CFW-11, CFW-11M, CFW70X
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2. INSTALLATION
Table 2: XC25 terminals (safety stop terminals) signals
XC25 terminals
Function
Specifications
1
STO1
Terminal 1 of
safety relay K1 coil.
Coil rated voltage: 24 V, range: 20…30 Vdc
Coil resistance: 960 Ω ± 10 % @ 20 °C (68 °F).
2
GND1
Terminal 2 of
safety relay K1 coil.
3
STO2
Terminal 1 of
safety relay K2 coil.
Coil rated voltage: 24 V, range: 20…30 Vdc
Coil resistance: 960 Ω ± 10 % @ 20 °C (68 °F).
4
GND2
Terminal 2 of
safety relay K2 coil.
NOTE!
XC25:2 and XC25:4 terminals are not connected internally to inverter +24 V power supply
reference. In most of cases, those terminals are connected to XC1:11 control terminal in
CFW-11 and CFW-11M inverters and to XC1:36 in CFW70X inverters.
NOTE!
Follow the instructions provided on item 3.2.5 (CFW-11 and CFW70x) or 3.4.8
(CFW-11M) of User’s Manual.
For XC25 control cabling consider the following:
Use wire gauge from 0.5 mm
2
(20 AWG) to 1.5 mm
2
(14 AWG) and maximum tightening torque
of maximum 0.50 N.m (4.50 lbf.in).
Use shielded cables connected to ground only on inverter side (use the provided metallic pieces
as shown on figure 3).
Run the cables separated from the remaining circuits (power, 110 V/220 Vac control, etc.).