185
Environment-resistive Terminals (IP66) Section 5-3
The following diagram shows the internal circuits for the DRT1-HD16C-1
Environment-resistive Terminal (PNP).
Wiring The following diagram shows the wiring of the DRT1-HD16C Environment-
resistive Terminal (NPN).
1
24
2
13
4
2
31
4
5
DRAIN
V−
V+
CAN LCAN H
3
VG
CN3
CN1
(Communications
connector)
Physical
layer
Photo-
coupler
DC-DC
converter
(Isolated)
DC-DC
converter
(Not
isolated)
Photo-
coupler
Photocoupler
Photocoupler
0 V (for internal circuits)
0 V
(for inputs)
CN2
(External power
supply connector)
24 V
(for inputs)
Input 0
Input 1
24 V
(for internal
circuits)
Internal circuitry
+
−
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
1
24
3
2
31
4
5
DRAIN V−
V+
CAN LCAN H
+
−
CN3 CN4 CN5 CN6 CN7 CN8 CN9 CN10 CN2 CN1
2-wire sensor
(limit switch)
Input 0
Input 1
Blue (black)
Input 2
Input 3
Brown (white)
Input 4
Input 5
Input 6
Input 7
Blue (black)
Black (white)
Brown (red)
Blue (black)
Black (white)
Brown (red)
NPN output 3-wire sensor
(photoelectric or proximity
sensor)
NPN output 3-wire sensor
(photoelectric or proximity
sensor)
Input 8
Input 9
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
(end surface)
Internal power
supply
I/O power
supply