NHP Terasaki TemBreak PRO P SE Series, Руководство пользователя

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Alarms
79
TemBreak PRO
P_SE-UM-001-EN
– V1.2.0
OAC (Optional Alarm Contact)
The OAC is an optional alarm which can be assigned with one of several types of alarms. When the assigned alarm is activated, the alarm will display on
the P_SE embedded display. The OAC also has a physical contact which closes with the activation of the OAC alarm. Refer to the
Optional Alarms List for
the list of available OAC alarm assignments.
The OAC is configurable by assigning it an alarm type (assignment), and the contact behaviour (reset mode), which can made using one or a combination of
the below methods:
-
TPED
-
TPCM
The physical contact mode is defined as either Auto-reset mode, or latching mode:
Auto-reset mode: Contact will remain CLOSED for up to 500ms after the alarm deactivates, at which point it will OPEN automatically.
Latching mode: Contact will remain CLOSED after the alarm deactivates, until the alarm is cleared via the P_SE embedded display or the TPED
where used.
TPED setting TPCM setting Default
“Assignment”
(Refer Optional Alarms List )
Command ID: 117 “ Optional Alarm assignment setting ”
(Refer Optional Alarms List )
PTA (Pre trip Alarm)
“Reset mode”
Automatic: Auto-reset mode
Latching:
Latching mode
Command ID: 116 “ Optional Alarm contact operation mode setting ”
Hex 00 00: Auto-reset mode
Hex 00 01: Latching mode
Auto-reset mode
Optional alarms List
ID
TPCM
holding register value (hex)
Custom Alarm Assignment Remark
0 00 00 None
1 00 01 High OCR internal temperature
2 00 02 Neutral monitoring wire disconnection 3Ph+N Only
3 00 03 OCR self-test failure
4 00 04 Reserved
5 00 05 PTA (Pre trip alarm)
6 00 06 Custom Alarm 1
7 00 07 Custom Alarm 2
8 00 08 Custom Alarm 3
9 00 09 Custom Alarm 4
10 00 0A Custom Alarm 5
11 00 0B Custom Alarm 6
12 00 0C Custom Alarm 7
13 00 0D Custom Alarm 8
14 00 0E Custom Alarm 9
15 00 0F Custom Alarm 10
16 00 10 Custom Alarm 11
17 00 11 Custom Alarm 12
Notice : The use of the OAC physical contact requires the connection of the OAC/PTA cable to the OAC port
located under the front cover of the P_SE MCCB. Refer to the Connection Cables section for details on the
OAC/PTA cable.
Notice : In the event that PTA (Pre trip alarm) is assigned to OAC, the contact operation mode is forced to auto-
reset mode, where the contact will OPEN up to 500ms after the PTA is no longer active.