Failure Transfer - Brainchild BTC-2500 User Manual

3 17 Failure Transfer

3 17 Failure Transfer
The controller will enter The controller will enter
1. 1. SB1E SB1E occurs ( due to the input 1 sensor break or input 1 current below 1mA occurs ( due to the input 1 sensor break or input 1 current below 1mA
if 4-20 mA is selected or input 1 voltage below 0.25V if 1-5 V is selected ) if if 4-20 mA is selected or input 1 voltage below 0.25V if 1-5 V is selected ) if
PV1, P1-2 or P2-1 is selected for PVMD or PV1 is selected for SPMD. PV1, P1-2 or P2-1 is selected for PVMD or PV1 is selected for SPMD.
2. 2. SB2E SB2E occurs ( due to the input 2 sensor break or input 2 current below 1mA occurs ( due to the input 2 sensor break or input 2 current below 1mA
if 4-20 mA is selected or input 2 voltage below 0.25V if 1-5 V is selected ) if if 4-20 mA is selected or input 2 voltage below 0.25V if 1-5 V is selected ) if
PV2, P1-2 or P2-1 is selected for PVMD or PV2 is selected for SPMD. PV2, P1-2 or P2-1 is selected for PVMD or PV2 is selected for SPMD.
3. 3. ADER ADER occurs due to the A-D converter of the controller fails. occurs due to the A-D converter of the controller fails.
The output 1 and output 2 will perform the The output 1 and output 2 will perform the
following conditions occurs: following conditions occurs:
1. During power starts ( within 2.5 seconds ). 1. During power starts ( within 2.5 seconds ).
2. The controller enters the failure mode. 2. The controller enters the failure mode.
3. The controller enters the manual mode. 3. The controller enters the manual mode.
4. The controller enters the calibration mode. 4. The controller enters the calibration mode.
Output 1 Failure Transfer, if activated, will perform : Output 1 Failure Transfer, if activated, will perform :
1. If output 1 is configured as proportional control ( PB1 = 0 ), and BPLS is 1. If output 1 is configured as proportional control ( PB1 = 0 ), and BPLS is
selected for O1FT, then output 1 will perform bumpless transfer. Thereafter selected for O1FT, then output 1 will perform bumpless transfer. Thereafter
the previous averaging value of MV1 will be used for controlling output 1. the previous averaging value of MV1 will be used for controlling output 1.
2. If output 1 is configured as proportional control ( PB1 = 0 ), and a value of 2. If output 1 is configured as proportional control ( PB1 = 0 ), and a value of
0 to 100.0 % is set for O1FT, then output 1 will perform failure transfer. 0 to 100.0 % is set for O1FT, then output 1 will perform failure transfer.
Thereafter the value of O1FT will be used for controlling output 1. Thereafter the value of O1FT will be used for controlling output 1.
3. If output 1 is configured as ON-OFF control ( PB1 = 0 ), then output 1 will be 3. If output 1 is configured as ON-OFF control ( PB1 = 0 ), then output 1 will be
driven OFF if O1FN selects REVR and be driven ON if O1FN selects DIRT. driven OFF if O1FN selects REVR and be driven ON if O1FN selects DIRT.
Output 2 Failure Transfer Output 2 Failure Transfer
1. If OUT2 selects COOL, and BPLS is selected for O1FT, then output 2 will 1. If OUT2 selects COOL, and BPLS is selected for O1FT, then output 2 will
perform bumpless transfer. Thereafter the previous averaging value of MV2 perform bumpless transfer. Thereafter the previous averaging value of MV2
will be used for controlling output 2. will be used for controlling output 2.
2. If OUT2 selects COOL, and a value of 0 to 100.0 % is set for O2FT, then 2. If OUT2 selects COOL, and a value of 0 to 100.0 % is set for O2FT, then
output 2 will perform failure transfer. Thereafter the value of O1FT will be output 2 will perform failure transfer. Thereafter the value of O1FT will be
used for controlling output 2. used for controlling output 2.
Alarm 1 Failure Transfer Alarm 1 Failure Transfer
Thereafter the alarm 1 will transfer to the ON or OFF state preset by A1FT. Thereafter the alarm 1 will transfer to the ON or OFF state preset by A1FT.
Exception: If Loop Break (LB) alarm or sensor Break (SENB) alarm is Exception: If Loop Break (LB) alarm or sensor Break (SENB) alarm is
configured for A1FN, the alarm 1 will be switched to ON state independent configured for A1FN, the alarm 1 will be switched to ON state independent
of the setting of A1FT. If Dwell Timer (TIMR) is configured for A1FN, the alarm 1 of the setting of A1FT. If Dwell Timer (TIMR) is configured for A1FN, the alarm 1
will not perform failure transfer. will not perform failure transfer.
Alarm 2 Failure Transfer is activated as the controller enters failure mode. Alarm 2 Failure Transfer is activated as the controller enters failure mode.
Thereafter the alarm 2 will transfer to the ON or OFF state preset by A2FT. Thereafter the alarm 2 will transfer to the ON or OFF state preset by A2FT.
Exception: If Loop Break (LB) alarm or sensor Break (SENB) alarm is Exception: If Loop Break (LB) alarm or sensor Break (SENB) alarm is
configured for A2FN, the alarm 2 will be switched to ON state independent configured for A2FN, the alarm 2 will be switched to ON state independent
of the setting of A2FT. If Dwell Timer (TIMR) is configured for A2FN, the alarm 2 of the setting of A2FT. If Dwell Timer (TIMR) is configured for A2FN, the alarm 2
will not perform failure transfer. will not perform failure transfer.
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failure mode failure mode as one of the following conditions occurs: as one of the following conditions occurs:
failure transfer failure transfer
, if activated, will perform : , if activated, will perform :
is activated as the controller enters failure mode. is activated as the controller enters failure mode.
function as one of the function as one of the
UM25001C
Failure Mode Occurs as : Failure Mode Occurs as :
1. SB1E 1. SB1E
2. SB2E 2. SB2E
3. ADER 3. ADER
Failure Transfer of outout 1 and output 2 Failure Transfer of outout 1 and output 2
occurs as : occurs as :
1. Power start ( within 2.5 seconds ) 1. Power start ( within 2.5 seconds )
2. Failure mode is activated 2. Failure mode is activated
3. Manual mode is activated 3. Manual mode is activated
4. Calibration mode is activated 4. Calibration mode is activated
Failure Transfer of alarm 1 and alarm 2 Failure Transfer of alarm 1 and alarm 2
occurs as : occurs as :
1. Failure mode is activated 1. Failure mode is activated
Failure Transfer Setup : Failure Transfer Setup :
1. O1FT 1. O1FT
2. O2FT 2. O2FT
3. A1FT 3. A1FT
4. A2FT 4. A2FT