Miura MP1-200, Руководство по эксплуатации

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SECTION 3 OPERATION
42
c) All stop input (Terminal block No.7 and No.8 input)
This input stops all the firing boilers under MI control
(*)
by providing an all stop input.
All the automatically operated
(*)
boilers connected to the MI Terminal MT1-200 with passage of
electric current are targets.
d) All combustion input (Terminal block No.6 and No.7 input)
An all combustion input causes all the boilers under MI control
(*)
to start combustion in order.
All the automatically operated
(*)
boilers connected to the MI Terminal MT1-200 with passage of
electric current are targets. This input is nonfunctional if “Emergency stop Input” and “All Stop
Input” are input. (The boilers are stopped in accordance with the status of each input condition.)
3.6.2 Output for External Monitor (Terminal Block No.9 to No.20)
The terminal blocks No.9 through 20 are non-voltage contact output terminals ( normally open ) for
the external monitor.
Connect a load of 250 VAC, 1 A or less.
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S R FG
20: Pressure alarm H
The contact closes when
header steam pressure
exceeds alarm H setting.
18: Pressure alarm L
The contact closes when
header steam pressure is
lowered below alarm L
setting.
17: Boiler trouble
The contact closes when any
boiler under MI control
(*) has
an error.
15: Emergency stop
The contact closes when the
emergency stop is input.
14: Alarm
The contact closes when any
contact of 15, 17, 18, and 20
above is closed.
12: Boiler operation
The contact closes when any
boiler's operation switch is
ON.
11: Communication status
The contact outputs the
communication status. The
operation varies depending
on the settings of the internal
“ SWITCH 1 ” .
9: Sensor failure
The contact closes when a
pressure sensor failure is
detected.