TEXIO PW16-2ATP, Инструкция по эксплуатации

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7-3-1. Turning on/off MAIN OUTPUT key through external contacts
・
When S6 shown in Fig.14 goes active (i.e., pins 3 and 8 are short-circuited), the MAIN OUTPUT key is
turned on. Note that the MAIN OUTPUT key is always active, except an alarm status, when pins 3
and 8 are short-circuited.
・
Fig.15 shows the relationship between S6 and the MAIN OUTPUT key on the front panel.
Fig.15 Relationship between S6 and the MAIN OUTPUT Key on Front Panel.
7-3-2. Selecting PRESET 1 key to PRESET 4 key through external contacts
・
It is possible to select PRESET 1 key to PRESET 4 key by turning on (i.e., short-circuiting) S2 to
S5 shown in Fig.14.
・
If some PRESET is selected with the external contacts, the PRESET keys on the front panel are
not functional.
・
When PRESET 1 key to PRESET 4 key are selected simultaneously with the external contacts,
the order of priority is PRESET 1 key > PRESET 2 key > PRESET 3 key > PRESET 4 key.
7-3-3. Detecting OHA signal
・
If the exhaust air temperature becomes too high and an OHA (overheat alarm) occurs, pin 2
shown in Fig.14 goes Low. The OHA function may be checked with a voltmeter connected as
shown in Fig.14.
7-3-4. Inputting alarm signal through external contacts
・
It is possible to bring the PW-A power supply unit into the alarm status by turning on S1 shown in Fig.
14 (i.e., short-circuiting pins 1 and 2). It is possible to maintain the alarm status by keeping S1 on.
・
In the alarm status, the MAIN OUTPUT key is turned off forcedly like the OHA.
(See section “5-3.”.)
・
The characters "EAr" are displayed on the current indicator.
7-3-5. Inputting several alarms through external contacts
・
If pins 1 of the PW-A power supply units are connected with each other and pins 2 are also
connected with each other in a system with several PW-A power supply units, all units enter the
alarm status when an OHA occurs in some unit.
<Precautions>
It is possible to connect a maximum of 5 units using J1.
When the S6 is turned off through external
contact control, output is turned off.
Output is turned on with the MAIN
OUTPUT key on the front panel.
S6
ON
Power output
ON
When th main output is turned on through
external contact control, operation of the
MAIN OUTPUT key on the front panel is
ignored.