33
Model FL4000H
3.6.4 Fault
Relay
Table 10: Fault Relay Terminals
Terminal Block
Connection Point
Block Name
Normally Energized
P1
Term 1
FLT2
Fault NC
P1
Term 2
FLT1
Fault NO
P1
Term 3
FLTC
Fault Common
NOTE
: NO = Normally Open; NC = Normally Closed
Description: These connections are to the SPDT FAULT relay. The FAULT output configuration
is normally energized and non-latching. This is the standard output configuration and it cannot
be changed.
The FAULT circuit will be activated during the time-out function, a low power or loss of power
condition, or during a failed COPM check. During these conditions, the FAULT relays will de-
energize and the analog output signal will drop to 0 mA (2 mA for COPM Faults, 3.5 mA with
HART or 1.25 mA for HART with small current enabled) for the duration of the FAULT. The
FAULT relay contact ratings are 8 A @ 250 VAC and 8 A @ 30 VDC.
Refer to Figure 20 for all relay connections.
3.6.5 Alarm Reset Terminal
Table 11: Alarm Reset Terminal
Terminal Block
Connection Point
Block Name
Setting
P2
Term 4
RLY_IO
Relay Reset
The RESET, when activated, returns a latched ALARM and/or WARN output that is no longer
valid to its original state. For this RESET function, place one contact of a SPST (single pole,
single throw), normally open, momentary switch to P2 Terminal 4 and the other contact to P1
terminal 9 (GND). To activate, press and release the switch.
3.6.6 Test Mode Terminal
Table 12: Test Mode Terminal
Terminal Block
Connection Point
Block Name
Setting
P1
Term 4
TEST_IO
Test Mode
By connecting one contact of a SPST, normally open, momentary switch to P1 terminal 4 and
the other contact to P1 terminal 9 (GND), the user can put the unit into a special test mode.
When the switch is first closed, the mode is set and the FL4000H goes to 1.5 mA or 3.5 mA
with HART and small HART current disabled (ready mode) and remains at this value while
detecting the Test Lamp. The relays are not activated. Closing the switch a second time or after
approximately 3 minutes, the unit will return to normal operation.
NOTE
: When in test mode via ground wire, the Test Lamp triggers a “ready” condition only.
Содержание FL4000H
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