Initial setting
• DEC102A51 Switch Settings
Name Operation OFF ON
SS1 Output switching Switching control output
Always
output “1”
Always
output “2”
DS2
Abnormal input detection
Open/Close
Failure detection
Open: Close (Normal) Æ Open (Abnormal)
Close: Open (Normal) Æ Close (Abnormal)
Open Close
DS3 Buzzer output ON/OFF
ON/OFF switching of buzzer output of buzzer
unit upon detection of failure.
ON OFF
DS4-1
Instantaneous automatic
recovery
Recover control output after power failure to
status before the power failure.
No Yes
DS4-2 Transmission failure
Shut off control output upon detecting transfer
failure.
Yes No
DS4-3 Last command priority Allowing start/stop control from facility. Yes No
DS4-4 Start/stop failure Detecting start/stop failure. (*1) No Yes
DS5
Abnormal output shutoff/retain
Shut off control output upon detecting failure. Yes No
DS6-1 Startup failure Masking time after detecting operation input.
10
seconds
30
seconds
DS6-2 Failure detection Operation upon recovery from failure.
Automatic
reset
Retained
DS6-3 Monitor input Detecting failure under halting status. Yes No
DS6-4 Forced termination Ignoring forced stop signal. No Yes
Note:
1. All are set to “OFF” upon shipment from factory.
2. *1 If operating feedback input is not detected within 10 seconds after 1 operation input is received, it results in start/stop failure.
Nosimultaneousclampingisallowedforhigh-voltagewiring<power
supply wiring (L/N), earth wiring, relay output wiring (CD, D1 to 4)>,
low-voltage wiring <communication wiring (F1/F2), operation input
wiring (CM, M1 to 4) and abnormal input wiring (CA, A1 to 4)> since
malfunctioningmayresult.Also,incasewherethewiringsdescribed
above are routed in parallel, be sure to connect the wirings at least
50mmapartfromtheother.
➀ To 1~200-240V and earth
➁ Tofacilityequipment
➂ Tofacilityequipment
➃ ToterminalsF1,F2ofthecentralizedcontrolequipmentorterminals
F1,F2ofotherequipment
(outdoor unit, DEC101A51, 102A51)
Alarm
Monitor
(RED)
ON
ON
ON
INPUT
Group No. Set
DS1 High
RS1 Low
Operation
Monitor
(GRN)
Contact switch
Con. Ins.