Fuji Electric Time Delta-C FSV-2, Instruction Manual

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4.12.3. DO output
Description
 Selects the output of total pulses and statuses (of alarm, flow switch, total switch, etc.).
 Selecting the source channel of DO output (DO1, DO2, DO3, and DO4)
Specify of which channel (path 1, path 2, or calculated value) the data are to be output to DO output.
Channel selection: CH1, CH2, CH3
<Note> In 1-path/energy measurement, no parameters need to be specified by channel number.
 DO output types (common to DO1, DO2, DO3, and DO4):
Settable range
NOT USED : Does not use the contact output.
+TOTAL PULSE : Outputs the forward total flow pulses.
- TOTAL PULSE : Outputs total flow pulse in reverse direction.
FULL SCALE 2 : Contact output is activated during FULL SCALE 2 measurement status.
(forward automatic 2 ranges, forward and reverse range, forward/reverse automatic 2 ranges)
ALARM
ALL : Contact output is activated at HARDWARE FAULT or PROCESS ERROR.
HARDWARE FAULT : Contact output is activated at a circuit error (of memory etc.).
PROCESS ERROR : Contact output is activated when no waves are received, or waves are unstable.
FLOW SWITCH
FLOW SW HIGH : Contact output is activated when flow rate is above the setting.
FLOW SW LOW : Contact output is activated when flow rate is below the setting.
TOTAL SWITCH : Contact output is activated when total flow value exceeds the setting.
AO RANGE OVER : Contact output is activated when the lower and upper limits of flow range are above the setting.
PULSE RANGE OVER : Contact output is activated when the total flow pulse output exceeds the maximum output frequency.
-FLOW DIRECTION
: Contact output is activated when the flow is in reverse direction.
* The following items are used only in 1-path/energy measurement.
H: TOTAL PULSE(T)
: Outputs pulse for total heating energy
C: TOTAL PULSE(T) : Outputs pulse for total cooling energy.
FULL SCALE 2(T) : Contact output is activated during FULL SCALE 2(T) measurement status. (forward automatic 2 ranges,
forward and reverse range, forward/reverse automatic 2 ranges)
FLOW SWITCH(T)
FLOW SW HIGH(T) : Contact output is activated when instantaneous thermal energy is above the setting.
FLOW SW LOW(T) : Contact output is activated when instantaneous thermal energy is below the setting.
TOTAL SWITCH(T) : Contact output is activated when total thermal energy exceeds the setting.
AO RANGE OVER(T) : Contact output is activated when over-range occurs.
P:RANGE OVER(T)
: Contact output is activated when pulse overrange occurs.
AIR-CONDITIONING : Contact output is activated when the operation mode switches between cooling and heating.
TEMP. ALARM : Contact output is activated when an over-range (-40 to 200 ℃ ) temperature or an error such as a breakage
of resistance bulb.
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 4.12.2.1)
100 pulses/s or less (at full scale flow rate)
Pulse width: 5, 10, 50, 100, 200,500 and 1000ms.
For actual keying, refer to the typical operation indicated below. Set the protection to OFF beforehand. (See Section 4.5.1.)
CAUTION