2  Robot arm
 Tooling   2-19
2.5.6 Electrical specifications of hand input/output
Table 2-4 : Electrical specifications of input circuit
Table 2-5 : Electrical specifications of output circuit
Item  Specifications  Internal circuit 
Type DC input 
 <Sink type>
 <Source type>
* HCn=HC1~HC4
No. of input points 8
Insulation method Photo-coupler insulation 
Rated input voltage  24VDC 
Rated input current  approx. 7mA 
Working voltage range  DC10.2 to 26.4V (ripple rate within 5%)
ON voltage/ON current  8VDC or more/2mA or more 
OFF voltage/OFF current  4VDC or less/1mA or less 
Input resistance  Approx. 3.3kΩ 
Response time
 
OFF-ON  10ms or less (DC24V) 
ON-OFF 10ms or less (DC24V) 
Item  Specification Internal circuit 
Type Transistor output 
 
<Sink type>
 <Source type>
* GRn=GR1~GR4
No. of output points 8
Insulation method  Photo coupler insulation 
Rated load voltage  DC24V 
Rated load voltage range  DC21.6 to 26.4VDC 
Max. current load  0.1A/ 1 point (100%)
Current leak with power OFF  0.1mA or less 
Maximum voltage drop with power ON  DC0.9V(TYP.) 
Response time OFF-ON  2ms or less (hardware response time) 
ON-OFF  2 ms or less (resistance load) (hardware response time)
Protects Protects the over-current (0.9A)
3.3K
+24V
24GND
820
HCn
*
+24V
3.3K
820
24GND
+24V
HCn
*
+24V
+24V(COM) 
(内部電源)
 
*
GRn
過電流
保護機能
24GND
Protection of 
over-current
(Initial power supply)
* 
GRn
+24V 
24GND(COM) 
過電流
保護機能
Protection of 
over-current