Hach-Lange WTOS P-RTC - Manual (Page 14)

14
Installation
3.3.1 PHOSPHAX sc analyzer power supply
Refer to the PHOSPHAX sc manual.
3.4 sc1000 controller connection
Connect the SUB-D plug supplied to a dual-core, sheathed data cable (signal or bus
cable). For further information regarding the data cable connection, refer to the enclosed
assembly instructions.
3.5 Flow rate signal connection
If a flow rate measurement signal of 4 to 20 mA is available, connect it to the analog input
of the RTC module.
3.6 Connection to the automation unit on the plant side
Depending on the variant and option, the RTC101 P-Module is equipped with various
components that must be connected to the plant's automation unit.
• The volumetric flow rate is provided to the RTC module as a 0/4 to 20 mA signal for all
variants and options.
• The precipitant volume to be metered is delivered by the RTC module as a 0/4 to
20 mA signal for all variants and options.
Alternatively, the precipitant volume can also be output by the fieldbus variants
provided by the sc1000 (see sc1000 operating instructions).
• The RTC module supplies the digital output signal for activating the precipitant pump
at 0 V or 24 V.
• The RTC module supplies a collective fault message at 0 V (fault) or 24 V (device
functional).
Table 2 Signal allocation of individual components of the RTC module
RTC module options
Component Name Connection Signal Function 1-channel 2-channel
2-fold digital output 1
1 Ground to connections 3 and 7 or equal to voltage supply
KL2032
1 +24 V/0 V Precipitant pump on/off X
5 +24 V/0 V No fault/fault X
4-fold digital output 1 KL2134
1 +24 V/0 V Precipitant pump 1 on/off X
5 +24 V/0 V No fault/fault in channel 1 X
4 +24 V/0 V Precipitant pump 2 on/off X
8 +24 V/0 V No fault/fault in channel 2 X
Single analog output KL4011 1(+) 3(-) +24 V/0 V Precipitant pump dosing rate X
2-fold analog output KL4012
1(+) 3(-) +24 V/0 V Precipitant pump 1 dosing rate X
5(+) 7(-) +24 V/0 V Precipitant pump 2 dosing rate X
1-fold analog input KL3011 1(+) – 2(-) 0/4 to 20 mA Feed volume flow Channel 1 X X
2-fold analog input KL3011 1(+) – 2(-) 0/4 to 20 mA Feed volume flow Channel 2 X