66
WT.050.590.000.DE.IM.0719
Functions
SFC
4.
4.3
Outputs
4.3.1
mA output
The mA output of the SFC is electrically isolated and can be
parameterized to 0 – 5 mA, 0 – 10 mA, 0 – 20 mA or 4 – 20 mA in
the menu. Any measured value, actuator output Y
out
or
temperature can be assigned to the mA output.
4.3.2
Relay outputs
The SFC has a maximum of four relays, each with a two-way
switch. These switches are assigned various switching tasks
depending on the selected application (see 4.5 “Applications”).
The corresponding diagrams for the three applications are in the
appendix under 9. “Wiring Diagrams”. In order to switch larger
inductive load, we recommend installing an additional contact
such as a contactor or load relay, in order to guarantee the
contacts have a longer service life.
Protection of the relay contacts of alarm and control outputs is
provided at the factory using RC circuits. These provide radio
interference suppression for inductive loads such as pumps,
motors, etc.
Connection of small loads
When connecting small loads to the mains voltage, e.g. contactors
or positioners with low power consumption (e.g. V10K), the
closed-circuit current via the RC circuits can suffice to activate the
loads (humming of the positioner, contactor is not deactivated,
etc.). In this case, the plug-in jumpers of the relevant contacts
should be removed to deactivate the RC circuits.
K1
J6/J7
K2
J8/J9
K3
J10/J11
K4
J12/J13
Picture 6
Connection diagram
A Plug-in jumpers
A
Summary of Contents for WALLACE & TIERNAN SFC
Page 1: ...WALLACE TIERNAN MEASURING AND CONTROL SYSTEM SFC from version V 3 08 INSTRUCTION MANUAL...
Page 2: ...2 WT 050 590 000 DE IM 0719 SFC Please note Original instruction manual...
Page 40: ...40 WT 050 590 000 DE IM 0719 Description SFC 3...
Page 118: ...118 WT 050 590 000 DE IM 0719 Functions SFC 4...
Page 121: ...SFC Installation 5 121 Top hat rail assembly...
Page 122: ...122 WT 050 590 000 DE IM 0719 Installation SFC 5 Wall mounting assembly...
Page 123: ...SFC Installation 5 123 Top hat rail assembly...
Page 124: ...124 WT 050 590 000 DE IM 0719 Installation SFC 5 Wall mounting assembly...
Page 125: ...SFC Installation 5 125 Control cabinet installation assembly...
Page 126: ...126 WT 050 590 000 DE IM 0719 Installation SFC 5 Control cabinet installation assembly...
Page 127: ...SFC Installation 5 127 Installation of the front panel on the control cabinet...
Page 156: ...156 WT 050 590 000 DE IM 0719 Installation SFC 5...
Page 218: ...218 WT 050 590 000 DE IM 0719 Operation SFC 6...
Page 232: ...232 WT 050 590 000 DE IM 0719 Maintenance SFC 7...
Page 266: ...266 WT 050 590 000 DE IM 0719 Complete Units Retrofit Kits and Spare Parts SFC 8...
Page 274: ...274 WT 050 590 000 DE IM 0719 Declarations and certificates SFC 10...
Page 275: ...SFC Declarations and certificates 10 275 10 2 Certificate of Compliance...
Page 276: ...276 WT 050 590 000 DE IM 0719 Declarations and certificates SFC 10...
Page 284: ...284 WT 050 590 000 DE IM 0719 Settings Table SFC 11...