Azbil Micro Flow MQV0002, Руководство пользователя

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1-3
Chapter 1. INTRODUCTION
•
SP ramp control (function setup
C-27
)
This function is used to set the set value change ramp amount (the rate of
change per second) to a constant value for the start of control and for set value
changes. With this function, the set value change ramp amount can be set more
precisely than with the slow start function. Two different types of ramps can be
set, and there are the following 2 control modes:
•
SP ramp control 1
In SP ramp-up: Ramp 1
In SP ramp-down: Ramp 2
•
SP ramp control 2
In external contact OFF: Ramp 1
In external contact ON: Ramp 2
•
SP limit (function setup
C-35
)
The lower and upper limits of the set value range can be set to desired levels.
(This prevents mistaken high/low settings.)
•
Slow start (function setup
C- 1 7
)
Sudden changes in the controlled flow rate, when control is started or when the
set value is changed, can be suppressed. The control speed can be changed in
eight stages within a range of about 1 to 6 seconds.
•
Flow rate totalization (function setup
C-09
to
C- 12
)
MQV9005 : in 0.1 mL units
MQV9020 : in 1 mL units
MQV9200/9500 : in 0.01 L units
MQV0002/0005 : in 0.1 L units
MQV0020/0050 : in 1 L units
MQV0050(J, K) : in 0.001 m
3
units
MQV0200/0500 : in 0.01 m
3
units
Integrated flow count can be up to eight digits long (to 99,999,999) for each
unit. (Display alternates between first and last 4 digits.) The count can be
reset by key operation or external contact input. Use of external contact input
makes it possible to remotely operate the start, temporary stop, and reset of
totalization. When resetting the integrated count by key operation, the count
restarts automatically after it has been reset. On the other hand, when resetting
with the external contact input (by contact ON), the count restarts when the
contact is turned OFF.
•
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 setting 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 ± allowable range.)