C4 User Manual
Page 280 ©2021 Smartrise Engineering, Inc. All Rights Reserved October 25, 2021
postponed the original recall cycle, will not be delayed again. For the list of parameters, see the
C4 Parameter List.
The following is a list of privileged modes in order of operation:
• Fire Phase 1 and Phase 2 Operation
• EMS Phase 1 and Phase 2 Operation
• Cars in Manual Modes of Operation (Inspection states)
• Independent Service Operation
• Attendant Operation
33.1.2.1 Fire Phase 1 and Phase 2 Operation
Fire Phase1 and Phase 2 are modes of operation when smoke or heat is detected. See section 33.3 Fire
for more information.
33.1.2.2 EMS Phase 1 and Phase 2 Operation
EMS Phase 1 and Phase 2 are modes of operation to allow for medical personnel to take control of the
elevator during a medical emergency. See section 33.5 EMS for more information.
33.1.2.3 Cars in Manual Modes of Operation (Inspection States)
Cars are idle for 2-3 minutes from the time emergency power has been activated. Once a car is
switched from or to (MR, CT, IC, HA) inspection while emergency power is active, the whole
emergency power recall and allocation process is repeated using the new car configuration.
33.1.2.4 Independent/Attendant Service Operation
Independent/Attendant service operation cars remain idle for 2-3 minutes from when the
emergency power cycle began. The cars are not recalled but are considered normal cars when
allocated. If allocated, these cars return to their original mode of operation.
33.1.3 Other Modes
Cars OOS – When a car is OOS, the car is temporarily removed from service. The OOS condition
can occur if the doors remain open for a longer period of allotted time. If the OOS condition is
safety related, the car is treated as earthquake mode cars in which a car moves to the nearest
landing, open the doors, and then shuts down. These cars are not recalled. If the OOS condition
is caused by a switch, the car will still recall.
Normal Allocated Cars – After all recalls are complete, these cars close their doors and respond
to hall and car calls normally. While emergency power is active, their movement is restricted to
the defined emergency power speed.
Cars Not Allocated – Cars that are not allocated for normal operation leave the car on the recall
landing with the doors open.
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