Azbil Micro Flow MQV0005, Руководство пользователя

Страница: 14 / 90

1-4
Chapter 1. INTRODUCTION
•
Event lamp lighting/output (function setup
C-07
,
C-08
)
Two of the event types listed below can be selected. Output ON
delay time can also be set (but delay cannot be set for totalizer
pulse output).
• Integrated flow event output (when the integrated flow event set-
ting is exceeded.)
•
Totalized pulse output (pulse can be output for each totalizing
flow display unit.)
•
OK output (the control flow rate is within the set value ± allow-
able range.)
•
Flow rate upper or lower limit output (output in comparison
with optional upper or lower limit flow rate set value )
• Output mode (The four modes — control / fully open / control
or fully open / fully closed — can be identified and output.)
•
OK lamp ON/output (function setup
C-07
,
C-08
)
The OK lamp can be set to light when the control flow rate is
within the set value ± allowable range. This function is very handy
for verifying at a glance whether or not there is a proper response
to a new set value after its value is changed.
OK lamp
output can
also be used as an interlock signal for subsequent processes by as-
signing it to event output and including it in a sequence program.
•
PV filter (function setup
C-23
)
This function is used to average the detected instantaneous flow
rates (control flow rates). It can also reduce the effect of slight
pressure fluctuations.
•
Control dead band setup (prevention of valve operation) (function setup
C-22
)
This function is used to stop the valve from driving as long as the
control flow rate is within the OK range. Additionally, the OK
range (width of dead band) can be set to the desired level.
•
Valve amperage display (function setup
C-20
)
The electric current supplied to the valve can be displayed in units
of 0.0 to 100.0 %. Additionally, use of the valve amperage alarm
detection function makes it possible to detect an inlet pressure
change or clogging of the piping at the outlet.
•
Gas type external switching (function setup
C- 10
to
C- 12
,
C-
18
,
C-26
)
Two preset types of gases (including one with a user-determined gas
type conversion factor) can be switched by external contact input.
•
Control flow rate range external switching (function setup
C-10
to
C- 12
,
C-24
,
C-25
)
Two preset control flow ranges can be switched by external contact
input.