Azbil Micro Flow MQV0005, Руководство пользователя

Страница: 16 / 90

1-6
Chapter 1. INTRODUCTION
•
Analog scaling (function setup
C-28
)
This function is used to optionally change the flow rate (between
10% FS and 100 % FS) corresponding to 100 % FS analog input/
output (5 V or 20 mA).
•
Analog input (flow set value) range selection (function setup
C-05
,
C-09
)
In analog setup, the desired input range can be selected from those
shown below either by key operation or by external 3-way switch-
ing input. When doing so, the voltage input and current input
are selected automatically, as they are linked with the settings of
function setup
C-06
(analog output type selection). For example,
when the voltage output (0 to 5 V or 1 to 5 V) is selected in
C-06
,
the voltage input is selected automatically. Likewise, when the cur-
rent output (0 to 20 mA or 4 to 20 mA output) is selected, the cur-
rent input is selected automatically.
(1) Internal reference 0 to 5 V input*/External reference 0 to 20 mA input
(2) External reference 0 to 5 V input/External reference 0 to 20 mA input
(3) External reference 1 to 5 V input/External reference 4 to 20 mA input
* 0–5 V internal-reference is used when the 5 V output termi-
nal (pin No. 20) of this controller is used as the reference.
•
Analog output type/range selection (function setup
C-06
,
C-09
)
Output can be set either to instantaneous flow rate (PV) or flow set
value (SP). Furthermore, a voltage/current output range can be se-
lected from (1) to (4) shown below by key operation. Additionally,
(1)/(2) or (3)/(4) can be changed through the external 3-way
switching input. (Combinations are switched because of linkage
with the analog input range selection.)
Instantaneous flow rate (PV) output Flow set value (SP) output
(1) 0 to 5 V output (1) 0 to 5 V output
(2) 1 to 5 V output (2) 1 to 5 V output
(3) 0 to 20 mA output (3) 0 to 20 mA output
(4) 4 to 20 mA output (4) 4 to 20 mA output