Hach-Lange SC 60 - Manual (Page 27)

23
Installation
3.6 Wiring the Digital Gateway
The digital gateway is designed to provide a digital interface to the
sc60 controller (or other appropriate digital controller). The
non-sensor end is connected to the controller as described in
section 3.5.1 on page 21 .
3.7 Connecting the Optional Digital Output
DANGER
Explosion hazard. Do not connect or disconnect electrical
components or circuits to the equipment unless power
has been switched off or the area is known to be
non-hazardous.
The manufacturer supports Modbus RS485, Modbus RS232, and
Profibus DP communication protocols. The optional digital output
card is installed as shown in
Figure 21 on page 25 . Terminal block
J1 provides user connection to the optional network card. The
Figure 19 Hard-wiring the sensor
Table 5: Wiring the Sensor at Terminal Block J5
Terminal Number Terminal Designation Wire Color
1 Data (+) Blue
2 Data (–) White
3 Service Request No Connection
4 +12 V dc Brown
5 Circuit Common Black
6 Shield Shield (grey wire in existing quick disconnect fitting)
1
1
+ DATA
+ OUT2
– DATA
– OUT2
SERVICE REQUEST
SHIELD/CHASSIS GND
+ V
+ OUT1
GND
– OUT1
2
2
3
3
4
4
5
5
6
PROBES
ANAL
OG
OUT
PU
TS
PCB
CONNECTOR
FIELD WIRING
INSULATION MUST
BE RATED TO
80° C MINIMUM
DANGER - EXPLOSION HAZARD
DANGER - RISQUE D'EXPLOSION
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE
UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.
NE PAS DEBRANCHER TANT QUE LE EST SOUS
TENSION, A MONIS QU'IL NE S'AGISSE D'UN
EMPLACEMENT NON-DANGEROUX
NC NC NC COM COM COM NO
F1 F2
NO NO
RELAY3 RELAY2 RELAY1
1
1
+ DATA
+ OUT2
– DATA
– OUT2
SERVICE REQUEST
SHIELD/CHASSIS GND
+ V
+ OUT1
GND
– OUT1
2
2
3
3
4
4
5
5
6
PROBES
ANAL
OG
OUT
PU
TS
PCB
CONNECTOR
FIELD WIRING
INSULATION MUST
BE RATED TO
80° C MINIMUM
J1
J2
J4
NETWORK
INTERFACE
CARD
J3
U5
U9
S1
DANGER - EXPLOSION HAZARD
DANGER - RISQUE D'EXPLOSION
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE
UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.
NE PAS DEBRANCHER TANT QUE LE EST SOUS
TENSION, A MONIS QU'IL NE S'AGISSE D'UN
EMPLACEMENT NON-DANGEROUX
1
1
+ DATA
+ OUT2
– DATA
– OUT2
SERVICE REQUEST
SHIELD/CHASSIS GND
+ V
+ OUT1
GND
– OUT1
2
2
3
3
4
4
5
5
6
PROBES
ANAL
OG
OUT
PU
TS
PCB
CONNECTOR
FIELD WIRING
INSULATION MUST
BE RATED TO
80° C MINIMUM
DANGER - EXPLOSION HAZARD
DANGER - RISQUE D'EXPLOSION
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE
UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.
NE PAS DEBRANCHER TANT QUE LE EST SOUS
TENSION, A MONIS QU'IL NE S'AGISSE D'UN
EMPLACEMENT NON-DANGEROUX
NC NC NC COM COM COM NO
F1 F2
NO NO
RELAY3 RELAY2 RELAY1
1
1
+ DATA
+ OUT2
– DATA
– OUT2
SERVICE REQUEST
SHIELD/CHASSIS GND
+ V
+ OUT1
GND
– OUT1
2
2
3
3
4
4
5
5
6
PROBES
ANAL
OG
OUT
PU
TS
PCB
CONNECTOR
FIELD WIRING
INSULATION MUST
BE RATED TO
80° C MINIMUM
J1
J2
J4
NETWORK
INTERFACE
CARD
J3
U5
U9
S1
DANGER - EXPLOSION HAZARD
DANGER - RISQUE D'EXPLOSION
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE
UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.
NE PAS DEBRANCHER TANT QUE LE EST SOUS
TENSION, A MONIS QU'IL NE S'AGISSE D'UN
EMPLACEMENT NON-DANGEROUX
J6
J5 J5 J5 J5
Disconnect
Power
From Probe