Levitronix LEVIFLOW LFSC-05D, User Manual

Page: 16 / 30

User Manual for LEVIFLOW
®
LFSC-D Flowmeters
www.levitronix.com
PL-4507-00, Rev08, DCO# 20-024
16
Pin # Designation Specification
1 NC Not connected.
2 +24 V
24 VDC ± 10% / 270 mA / Inrush Peak 4.9 A within 180 µs
Note: Usage of twisted pairs in a shielded cable recommended.
3 0 V
4 FG Field Ground. See note in installation Section 3.2.2
5 TRX+
RS485 with MODBUS protocol
Digital communication in a sensor array or configuration with service SW.
Note: Usage of twisted pair wires in a shielded cable recommended.
6 TRX-
7 TRXG
RS485 ground. If possible, to be connected to the ground of the RS485 master.
Note 1: Can be led in the same cable as TRX+/TRX-.
Table 10: Standard configuration of bus connector of LFC-6CIO-PC
Pin Designation Pin # Designation Specification Standard Configuration
1 Analog Out CH1+ 7 Analog Out CH4+
4 - 20 mA
(0
– 20 mA configurable)
Load resistance < 600 Ohm
Flow reading with 4-20 mA. Standard full scale
flow range of each sensor model.
Flow rate signal.
Update rate is 5 ms per channel.
2 Analog Out CH1- 8 Analog Out CH4-
3 Analog Out CH2+ 9 Analog Out CH5+
4 Analog Out CH2- 10 Analog Out CH5-
5 Analog Out CH3+ 11 Analog Out CH6+
6 Analog Out CH3- 12 Analog Out CH6-
Table 11: Standard configuration of analog output connector for LFC-6CIO-PC
Note 1: Min torque for connector screws is 0.5 Nm and max. is 0.6 Nm.
Digital Outputs Digital Inputs
Pin Designation Specification Standard Configuration Pin Designation Specification Standard Configuration
1 Digital Out CH1+
Maximum rating:
30 VDC, 20 mA
(open collector)
- Parameter: Flow Alarm High
- Setting: 105% of full scale
- Normally opened
Contact is made, when 105% of
full scale flow rate is exceeded.
13 Digital In CH1+
No-voltage
contact or
transistor open
collector.
Zero Adjustment
Is needed, if zero adjustment
wants to be triggered by PLC or
when volume counter function is
used (integration of flow with
volume detection)
2 Digital Out CH1- 14 Digital In CH1-
3 Digital Out CH2+ 15 Digital In CH2+
4 Digital Out CH2- 16 Digital In CH2-
5 Digital Out CH3+ 17 Digital In CH3+
6 Digital Out CH3- 18 Digital In CH3-
7 Digital Out CH4+ 19 Digital In CH4+
8 Digital Out CH4- 20 Digital In CH4-
9 Digital Out CH5+ 21 Digital In CH5+
10 Digital Out CH5- 22 Digital In CH5-
11 Digital Out CH6+ 23 Digital In CH6+
12
Digital Out CH6- 24 Digital In CH6-
Table 12: Standard configuration of digital in/output connector for LFC-6CIO-PC
Note 1: Min torque for connector screws is 0.5 Nm and max. is 0.6 Nm.
1. Check if all parts are delivered as shown in Figure 14 . For every configuration (single
converter as shown in Figure 14a and multi converter array as in Figure 14b ) a termination
box (resistance to terminate the RS485) and a connector box (wiring) is needed.
2. For communication with RS485 check the address settings of the potentiometers on the front
panel of the converter (see
Figure 14
d ). The total address of the first channel is:
“High ADRS” x 10 + “Low ADRS” x 1
3.
The Levitronix
®
Service Software can be used to debug and configure the flowmeter over the
RS485. For communication with RS485 the MODBUS protocol can be requested at
Levitronix

.