Fluidwell E126-P-EL, Manual

Page: 46 / 72

User Manual E126-P-EL
Page 46 FW_E126-P-EL_M_v0301-01_EN
6.4.6 TERMINAL CONNECTORS – RSM
The following terminal connections are available for Relay Supply Module (RSM; option OR).
P5 P6
POWER
REQUIREMENTS
P7
PD: 9 - 27V DC*
+
PX: 9 - 27V DC
+
R8 R9
PULSE OUTPUT
D5
OR: Relay output*
COM5 NO5
R10 R11
RSM
*Type OR requires 24-27V DC and power supply via P5-P6
instead of P1-P2
Fig. 27:
Terminal connectors RSM
6.4.7 TERMINALS P1-P2 OR P5-P6: POWER SUPPLY – TYPE PD/PX
Power connection differs with or without Type OR
● Without Type OR, power should be connected to MEM terminals P1 and P2.
● With Type OR, power should be connected to RSM terminals P5 and P6.
Connect an external 9-27 VDC power supply to these terminals.
When power is applied to these terminals, discharge of the (optional) internal battery will be
disabled. See also
Section 6.4.4: Voltage selection sensor supply [»44]
.
6.4.8 TERMINALS P3: SENSOR SUPPLY - TYPE PD
This terminal may be used for sensor supply. See
Section 6.4.4: Voltage selection sensor supply [»44]
for relevant information.
Power requirements for sensor supply P3:
● 8.2 V sensor supply requires 9-27 V
● 12 V sensor supply requires 13-27 V
● 24 V = V-input – 1V (max 27 V)
6.4.9 TERMINALS R1-R2 AND R10-R11: DIGITAL OUTPUTS D1 AND D5
The functionality of the digital output is programmed through
SETUP 8: PULSE OUTPUT [»31]
.
● The digital (transistor) output D1 has a maximum frequency of 500Hz for scaled pulse and
10kHz for pulse retransmission.
● Be sure that the output frequency of the optional digital (relay) output D5 does not exceed
0.5 Hz, else the relay life time and reliability will be reduced significantly.
● When retransmit mode is selected, only Type OT output D1 (on terminals R1-R2) will retransmit
the frequency of the flowmeter signal. In all other modes, Type OR output D5 will follow output
D1.