WEG CFW-11 Installation And Operation Manual - page 12
Safety Stop Function
12 | CFW-11, CFW-11M, CFW70X
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4. EXAMPLES OF WIRING DIAGRAMS OF INVERTER CONTROL SIGNAL
It’s recommended to use inverter DI1 and DI2 digital inputs set as 3-wire start/stop commands
and the wiring diagrams of inverter control signal according to figure 4.
XC1:11 - DGND*
XC25:2 - GND(R1-)
XC25:1 - STO1(R1+)
XC25:3 - STO2(R2+)
XC25:4 - GND(R2-)
XC1:12 - COM
XC1:13 - +24V
XC1:15 - DI1
XC1:16 - DI2
Stop
Start
Emergency
Stop
CFW-11/
CFW-11M
XC1:36 - GND(24V)
XC25:2 - GND(R1-)
XC25:1 - STO1(R1+)
XC25:3 - STO2(R2+)
XC25:4 - GND(R2-)
XC1:35 - COM
XC1:34 - +24V
XC1:37 - DI1
XC1:38 - DI2
Stop
Start
Emergency
Stop
CFW70X
(a) STO or SS0 safety function with
CFW-11 and CFW-11M inverters
(b) STO or SS0 safety function with CFW70x
inverters
External
XC1:11 - DGND*
XC25:2 - GND(R1-)
XC25:1 - STO1(R1+)
XC25:3 - STO2(R2+)
XC25:4 - GND(R2-)
XC1:12 - COM
XC1:13 - +24V
XC1:15 - DI1
A1 A2
XC1:16 - DI2
Stop
Start
Safety Relay
CFW-11/
CFW-11M
14 24 48 58
13 23 47 57
(c) SS1 safety function with CFW-11 and CFW-11M inverters
(*)
External
XC1:36 - GND(24V)
XC25:2 - GND(R1-)
XC25:1 - STO1(R1+)
XC25:3 - STO2(R2+)
XC25:4 - GND(R2-)
XC1:35 - COM
XC1:34 - +24V
XC1:37 - DI1
XC1:38 - DI2
Stop
Start
Safety Relay
CFW70X
13 23 47 57
14 24 48 58
A1 A2
(d) SS1 safety function with CFW70x inverters
(*)
(*) For specifications of external safety relay that is required to realize SS1 (stop category 1) refer to item 5.
Figure 4: Inverter control wiring examples (XC1 and XC25 terminals) to realize STO (or SS0, i.e., stop category 0)
and SS1 (stop category 1) safety functions according to IEC/EN 61800-5-2 and IEC/EN 60204-1 standards –
DI1 and DI2 inputs set as 3-wire start/stop commands