Elevator Recall; Overview; Step 1. Add Primary Floor Initiating Devices To A User-Defined List; Step 2. Add Alternate Floor Initiating Devices To A User-Defined List - Simplex 4010 Applications Manual

Elevator Recall

Overview

Step 1. Add Primary Floor
Initiating Devices to a User-
Defined List
Step 2. Add Alternate Floor
Initiating Devices to a
User-Defined List
Step 3. Add Custom Labels
to AUX Relays
Step 4. Add Custom Control
Equations
Technical Manuals Online! - http://www.tech-man.com
The Elevator Recall application programs the system to automatically recall the
building elevators following alarm activation. Guidelines to be aware of
include:
•
General information on and requirements for Elevator Recall and Fire
Safety Control Functions can be found in NFPA 72, 1996, Chapter 3 for
Protected Premises Fire Alarm Systems, and ANSI/ASME A17.1 Safety
Code for Elevators and Escalators.
•
Installation wiring running between the 4010 FACP and the auxiliary relays
used for fire safety control functions (in this case, elevator recall) must be
monitored for integrity (supervised) and the auxiliary relay must be located
within 3 feet of the controlled circuit or device. Reference NFPA 72, 1996,
Section 3-9.2.
•
It is recommended that relay IAMs be used as the primary and alternate
elevator recall relays. Other supervised wiring methods, such as a 24 Point
I/O output connected to a supervised relay, may be used in lieu of a relay
IAM.
The remainder of this section describes the Custom Control programming
required to implement this application.
Use the PC Programmer's List Tab to add all of the building's initiating devices,
with the exception of those located on the alternate floor, to a user-defined list.
Use the Card Tab to give the list a descriptive name such as "BANK2
PRIMARY ELEVATOR RECALL."
Use the PC Programmer's List Tab to add the initiating devices located on the
alternate floor to a user-defined list. Use the Card Tab to give the list a
descriptive name such as "BANK2 ALTERNATE ELEVATOR RECALL."
The 4010 uses AUX relays, connected to the appropriate contacts on the control
panel of the elevator, to indicate that a fire condition exists and the elevator
should be returned to either the primary or alternate floor. Use the Point Tab to
assign a descriptive label, such as "BANK2 PRIMARY ELEVATOR" or
"BANK2 ALTERNATE ELEVATOR," to the appropriate AUX Relay.
The following example, shown in Figure 4-6, illustrates how to implement
Elevator Recall with Custom Control.
•
Equation 1. The first two input statements, separated by the AND NOT
operator, check whether there is an activated initiating device (List L26)
and make sure the relay that returns the elevator to the alternate floor is not
activated (i.e., possible fire on primary floor). If both of these are true, the
relay for the primary floor activates.
4-12
Continued on next page