TECO   SG2 H-TYPE 
H-TYPE PRODUCTS: 
SG2-12HR-D/12HT-D//12HR-12D/12HT-12D 
SG2-20HR-D/20HT-D/20VR-D/20VT-D//20HR-12D/20HT-12D/20VR-12D/20VT-12D 
SG2-10HR-A//10HR-24A 
SG2-20HR-A//20HR-24A 
WARN: 
Unintentional equipment operation. 
The application of this product requires know-how in design and program of control system. Only 
persons qualified are allowed to program, install and apply this product. 
Failure to follow this instruction will result in death, serious injury or equipment damage. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 1
DC 24V           Input  12 x DC(A1...A4=0~10V)
SG2-20HR-D
Output  8 x Relay / 8A
Q1
+- I3 I4 I5 I6I2I1 A4A2 A3A1I8I7
Q7Q3Q2 Q4 Q5 Q6 Q8
Q2
Output  4 x Relay / 8A
Q1 Q4Q3
SG2-12HR-D
DC 24V      Input  8 x DC(A1,A2  0~10V)
-
I1+ I6I3I2 I4 I5 A1 A2
-① Power supply 
terminals
-② LCD display
-③ Input terminals
-④ Retractable 
mounting feet
-⑤ Delete key
-⑥ Selection key
-⑦ Direction 
keys(left/right/up/down)
-⑧ Ok key
-⑨ Escape key
-⑩ EEPROM 
cartridge or PC cable 
connection
  -Output terminals
AC ..V          Input  ......
I1
I3
DC  V       Input  
NL
+
-
I2I1
AC ..V                                        INPUT  ......
I2 I4I3 I5 I6
I2I1 I3
I4
LN
IA
I8 I9 IC
IB
I6
I5
I7
DC  V                                        INPUT  
A2I5 I6 A1I4
I1 I2
I4
I3+- A1I8
A4
A2 A3
I5
I6
I7