YOKOGAWA UT750, Инструкция по эксплуатации

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<Toc> <5. Parameters>
5-13
IM 05D01B02-41E 1st Edition : May 31,2000-00
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Alarm-related Parameters
Located in: Main menu =
LOOP1
; Submenu =
ALM
Ref.3.3(3)
Ref.3.3(4)
Ref.3.3(4)
Ref.3.3(2)
Ref.3.3(1)
Parameter
Symbol
Name of Parameter Setting Range and Description Initial Value User
Setting
Target Item
in CD-ROM
Point of ON/OFF action
(Alarm setpoint)
Hysteresis
PV value
Output
Hysteresis for PV high limit alarm
On
Off
Time
Timer setpoint
Open
(Off)
Closed (On)
Open
(Off)
Open
Closed
Open
External contact
Blinking
Alarm-1 type
Alarm-2 type
Alarm-3 type
Alarm-4 type
OFF (0), 1 to 31
(same as below)
Common to all target setpoints. 1
2
1
2
OFF (0), 1 to 20, 25 to 31
1: PV high limit (energized, no stand-by action)
2: PV low limit (energized, no stand-by action)
3: Deviation high limit (energized, no stand-by action)
4: Deviation low limit (energized, no stand-by action)
5: Deviation high limit (de-energized, no stand-by action)
6: Deviation low limit (de-energized, no stand-by action)
For other alarm types, see “2.7 Changing Alarm Type.”
Common to all target setpoints.
AL1
AL2
AL3
AL4
0.0 to 100.0% of PV input range span
Output alarm: 0.0 to 100.0%
Allows margins to be set for an alarm setpoint.
With the hysteresis settings, it is possible to prevent relays from chattering.
0.5% of PV
input range
span
Output
alarm: 0.5%
Alarm-1 delay timer 0.00 to 99.59 (min., sec.) (enabled when alarm-1 type “AL1” is 1
to 20 or 28 to 31)
An alarm is output when the delay timer expires after the alarm
setpoint is reached. 0.00
Alarm-2 delay timer 0.00 to 99.59 (min., sec.) (enabled when alarm-2 type “AL2” is 1
to 20 or 28 to 31)
Alarm-3 delay timer 0.00 to 99.59 (min., sec.) (enabled when alarm-3 type “AL3” is 1
to 20 or 28 to 31)
0.00 to 99.59 (min., sec.) (enabled when alarm-4 type “AL4” is 1
to 20 or 28 to 31) Alarm-4 delay timer
0 Allows the alarm function to be enabled or disabled according to
the operating condition.
0: Always active
1: Not active when in Stop mode
2: Not active when in Stop mode or manual operation Alarm mode
DY1
DY2
DY3
DY4
AMD
Alarm-1 hysteresis
Alarm-2 hysteresis
Alarm-3 hysteresis
Alarm-4 hysteresis
HY1
HY4
HY2
HY3
●
Control Action-related Parameters
Located in: Main menu =
LOOP1
; Submenu =
CTL
Ref.2.1(2)
Ref.2.1(4)
Parameter
Symbol
Name of Parameter Setting Range and Description Initial Value User
Setting
Target Item
in CD-ROM
Output velocity
limiter OFF (0)
0.1 to 100.0%/sec.
can limit control output velocity OFF (0)
OPR
AUTO (0)
PID control mode 0: Standard PID control (with output bump at SP change)
1: Fixed Point control (without output bump at SP change)
Choose “Fixed Point Control” when controlling pressure or flow rate. 0
Anti-reset windup
(Excess integration
prevention) AUTO (0), 50.0 to 200.0%
The larger Setting, the sooner PID computation (integral computation) stops.
Used when the control output travels up to 100% or down to 0% and
stays at this Point.
MOD
AR