Franklin Electric CERUS X-DRIVE CXD-003A-4V, Installation And Operation Manual

Page: 73 / 252

OPERATION
Control Options
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or greater than for Higher, at or less than for Lower). When signal changes by Hysteresis value, VFD will
stop. If at any point of VFD run mode, either Enable DI or Run command is deactivated, VFD will stop.
NOTE: This feature does not work with 3-wire (push button station) control mode selection. If HOA is in
OFF position, VFD will stop even if analog signal is in ON state level.
• Trip: VFD trips based on analog level of the trigger type. When analog level reaches ON state, VFD will
trip on “Trip by AI” and will require reset. (Four types of reset: Keypad, Digital input, Communication or
Power cycle). VFD can be reset only when analog signal reaches OFF state. VFD can be reset when the
AI signal changes by the
Trigger Type [ADV2-64]
Hysteresis value. When the VFD is stopped, the display
will show “Stop by AI” message. When analog level reaches ON state, VFD will trip on Trip by AI and
will require reset.
Analog Trigger Source [ADV2-63]: Selects whether the trigger will be a PID feedback signal or auxiliary
input.
•
PID Feedback : The feature will operate based on monitored PID F/B signal from the source chosen in
[SET-18]
.
• Aux Input (Default): The feature will operate based on monitored AUX AI signal from the source set in
[ADV2-58]
and scaled in parameters
[ADV2-59] ~ [ADV2-61]
.
IMPORTANT: When a pressure transducer is used to measure water level, the Units selection should be
Feet , and the sensor maximum value should be converted from psi to feet—[(n) psi x 2.31].
Trigger Type [ADV2-64]: The diagrams on the next page show the difference between Lower and Higher
trigger types.
•
Lower: Used to refill water into a tank to maintain at
[ADV2-65]
+
[ADV2-66]
. When level becomes less than
Trigger Level [ADV2-65] , the feature will be activated. When the level is equal or greater than Trigger Level
[ADV2-65]
+
Trigger Hysteresis [ADV2-66]
, the function will be deactivated.
• Higher (Default): Used to pump water from a tank to maintain [ADV2-65] - [ADV2-66] . When level
becomes greater than
Trigger Level [ADV2-65]
, the function will be activated. When the level is equal to or
less than Trigger Level [ADV2-65] - Trigger Hysteresis [ADV2-66] , the function will be deactivated.
Trigger Level [ADV2-65]: The level at which the function will be activated.
• If [ADV2-63] is set to 1_Aux AI , the range is 0.0 to [ADV2-61] .
• If
[ADV2-63]
is set to
0_PID F/B
, the range is 0.0 to
[SET-20]
.
Trigger Hysteresis [ADV2-66]: Hysteresis value is subtracted from trigger value in Higher trigger mode to
determine OFF (trigger reset) state level. It is added to trigger value in Lower trigger mode.
•
If [ADV2-63] is set to 1_Aux AI , the range is 0.0 to [ADV2-61] .
• If
[ADV2-63]
is set to
0_PID F/B
, the range is 0.0 to
[SET-20]
.
The following diagrams show how this feature might be used:
Higher: VFD starts at or above 10 feet and stops at or
below 8 feet..
Analog Trigger [ADV2-62]
=
2_Run Enable
Trigger Type [ADV2-64] = 1_Higher
Trigger Level [ADV2-65]
= 10 feet
Trigger Hysteresis [ADV2-66] = 2 feet
Lower: VFD starts at or below 10 feet and stops at or
above 12 feet.
Analog Trigger [ADV2-62]
=
2_Run Enable
Trigger Type [ADV2-64] = 1_Higher
Trigger Level [ADV2-65]
= 10 feet
Trigger Hysteresis [ADV2-66] = 2 feet
Lower Higher
20 ft (6.1 m) 20 ft
(6.1 m)
12 ft (3.7 m)
10 ft (13.05 m)
10 ft (13.05 m)
8 ft (2.45 m)
ON
ON
OFF
OFF
[ADV2-66]
[ADV2-66]
[ADV2-65]
[ADV2-65]