Setting The Do Output - Fuji Electric FLR-3 Instruction Manual

4.9.3. Setting the DO output

Description
 Selects the output of total pulses and statuses (of alarm, flow switch, total switch, etc.).
 Settable range (common to DO1, DO2 )
NOT USED : Does not use the contact output.
+TOTAL PULSE : Outputs the forward total pulses.
- TOTAL PULSE : Outputs total pulse in reverse direction.
FULL SCALE 2 : Selects a contact output as FULL SCALE 2 measurement status.
ALARM
ALL : Selects a contact output at HARDWARE FAULT or PROCESS ERROR status.
HARDWARE FAULT : Selects a contact output when circuit error such as memory occurred.
PROCESS ERROR : Selects a contact output when no waves are received, or waves are unstable.
FLOW SWITCH
FLOW SW HIGH : Selects a contact output when flow rate is above the setting.
FLOW SW LOW : Selects a contact output when flow rate is below the setting.
TOTAL SWITCH : Selects a contact output when total value exceeds the setting.
AO RANGE OVER : Selects a contact output when the lower and upper limits of range are above the setting.
PULSE RANGE OVER : Selects a contact output when the total pulse output exceeds the maximum output frequency.
-FLOW DIRECTION : Selects a contact output when the flow is in reverse direction.
CONTACT ACTION
ACTIVE ON : Normally off
ACTIVE OFF : Normally on
 If the contact action is set to "ACTIVE OFF", DO output is provided when the power is turned on.
 Check if DO output can be modified before setting.
<Note> DO output specifications
DO1/DO2 : Open collector, Contact capacity 30V DC, 50mA
When total pulse output is selected (Note: See 4.9.2.1)
For actual keying, refer to the typical operation indicated below. Set the protection to OFF beforehand. (See Section 4.4.1.)
INF-TN3FLR-E
(forward automatic 2 ranges, forward and reverse range, forward/reverse automatic 2 ranges)
100 pulses/s or less (at full scale flow rate)
Pulse width: 5, 10, 50, 100, 200,500 and 1000ms.
AUTION
- 39 -