Connecting Safety Function Signals; Pin Arrangement Of Safety Function Signals (Cn8); I/O Circuits; Pin Arrangement Of Safety Function Signals - YASKAWA SGD7S Product Manual

4.6 Connecting Safety Function Signals

4.6.1 Pin Arrangement of Safety Function Signals (CN8)

4.6

Connecting Safety Function Signals

This section describes the wiring required to use a safety function.
Refer to the following chapter for details on the safety function.
Chapter 11 Safety Functions
4.6.1 Pin Arrangement of Safety Function Signals (CN8)
Pin No.
1
2
3
4
5
6
7
8
4.6.2

I/O Circuits

Important
Safety Input Circuits
Use a 0-V common to connect the safety function signals. You must connect redundant input
signals.
Use a switch that has
low-current contacts.
4-38
Signal
−
- (Do not use these pins because they are connected to internal circuits.)
−
/HWBB1-
Hard Wire Base Block Input 1
/HWBB1+
/HWBB2-
Hard Wire Base Block Input 2
/HWBB2+
EDM1-
External Device Monitor Output
EDM1+
For safety function signal connections, the input signal is the 0-V common and the output signal
is a source output. This is opposite to other signals described in this manual.
To avoid confusion, the ON and OFF status of signals for the safety function are defined as fol-
lows:
ON: The state in which the relay contacts are closed or the transistor is ON and current flows
into the signal line.
OFF: The state in which the relay contacts are open or the transistor is OFF and no current
flows into the signal line.
Input Signal Connection Example
24-V power supply
Switch
/HWBB1+ 4
Fuse
/HWBB1-
/HWBB2+
/HWBB2-
0 V
Name
For a hard wire base block input. The
base block (motor power turned OFF)
is in effect when the signal is OFF.
Turns ON when the /HWBB1 and the /
HWBB2 signals are input and the SER-
VOPACK enters a base block state.
SERVOPACK

CN8

Ω
4.7 k
Ω
4.7 k
3
Ω
4.7 k
6
Ω
4.7 k
5
Function