YASKAWA SGD7S Product Manual page 126

4.6 Connecting Safety Function Signals
4.6.2 I/O Circuits
 Input (HWBB) Signal Specifications
Type
Inputs
The input (HWBB) signals have the following electrical characteristics.
Internal Imped-
ance
Operating Voltage
Range
Maximum Delay
Time
Diagnostic Output Circuits
The EDM1 output signal uses a source circuit. The following figure shows a connection exam-
ple.
SERVOPACK
 EDM1 Output Signal Specifications
Type
Output
The electrical characteristics of the EDM1 signal are as follows:
Maximum Allow-
able Voltage
Maximum Allow-
able Current
Maximum ON
Voltage Drop
Maximum Delay
Time
4-42
Connector
Signal
Pin No.
CN8-4
/HWBB1
CN8-3
CN8-6
/HWBB2
CN8-5
Item Characteristics
Ω
4.7 k
+24 V ±20%
8 ms
Host controller
CN8
24-V power supply
8 EDM1+
7
EDM1-
0 V
Signal Pin No.
CN8-8
EDM1
CN8-7
Character-
Item
istics
30 VDC
50 mA DC
1.0 V
8 ms
Status
ON (closed) Does not activate the HWBB (normal operation).
Activates the HWBB (motor current shut-OFF
OFF (open)
request).
ON (closed) Does not activate the HWBB (normal operation).
Activates the HWBB (motor current shut-OFF
OFF (open)
request).
−
−
Time from /HWBB1 and /HWBB2 signals turning
OFF until HWBB is activated
Output Sta-
tus
Both the /HWBB1 and /HWBB2 signals are operat-
ON
ing normally.
The /HWBB1 signal, the /HWBB2 signal, or both
OFF
are not operating.
Remarks
−
−
Voltage between EDM1+ and EDM1- when current is 50
mA
Time from a change in /HWBB1 or /HWBB2 until a change
in EDM1
Meaning
Remarks
Meaning