Optional Accessories -
External LSB-Module Connections
99
9.6
External LSB-Module Connections
NOTE:
Any external LSB module connections must also have an external power supply.
Modules can be connected in rows without any clearance. Once there are 15 modules
in a row, a new external connection to the power supply must be made.
More than 15 modules would overload the jumper plugs and cause them to burn out.
If an external power supply is used, ensure that sufficient protection is available since
there are no mains fuses.
1.
Install the LSB module in the required position. If more than one module is to be
installed, connect these using the jumper plugs provided.
2. Attach the 120 ohm LSB terminating resistor to the last module.
3.
Connect the LSB module to the external power supply (24 V DC) and the LSB
Ext. power supply for DIN-rail mounting type 663R4024
NOTE:
The maximum cable length between the LAMBDA TRANSMITTER P and the LSB
module is 500 m.
The module is connected to the LSB using the 7-pin connector on the housing. See
also section 3.4.
7-pin LSB/CAN connection to the gas extraction
device and filter heater
7-pin LSB/CAN connection to other devices with a
LSB/CAN terminal
1 - NC
2 - CAN-GND
3 - CAN low
4 - CAN high
5 - GND from EVU
6 - +24V from EVU
7 - PE
5
7
2
1
6
3
4
5
7
2
3
4
1
6
4.
Set the parameters in LAMBDA TRANSMITTER P (see chapter 4.5, 10.1 – 10.4)
5.
Check the plug-in jumpers on the LAMBDA TRANSMITTER P base electronic
(see chapter 12.5.1)
Recommendations for lengths and cross-sectional areas of LSB cables are listed
below:
0 - 40m
1 x 2 x 0,22 mm
2
, stranded in pairs, shielding, 120
Ω
40 - 300 m
1 x 2 x 0,34 mm
2
, stranded in pairs, shielding, 120
Ω
300 - 500 m
1 x 2 x 0,5 mm
2
, stranded in pairs, shielding, 120
Ω
