Johnson Controls CK721-A User Manual

CK721-A User Interface CK721-A Installation and Operation
4-52 24-10349-8 Rev. B
This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2012 Johnson Controls, Inc.
Basic Definitions
Outputs (low level interface only) – The elevator cab’s floor buttons will only
register being pressed when they are enabled by CK721-A outputs. The CK721-A
offers one output for each elevator cab’s floor button to determine whether or not
that button is enabled or disabled. The outputs offer both the normally open or
normally closed wiring options. The CK721-A elevator interface operates in Fail
Secure mode. The Enabled state is represented by an energized output relay, the
Disabled state by a de-energized output relay. The CK721-A elevator interface does
not support Fail Safe mode.
Inputs (low level interface only) – Each elev
ator cab’s floor buttons may be wired to
an input to allow the CK721-A to create floor tracking messages. A pressed button
needs to close the input, a button that is not pressed needs leave the input open. The
CK721-A elevator interface does not support normally closed buttons.
Valid Badge – A valid badge in this context is defined as a
badge that is accepted by
the elevator’s reader with a green light. The specific rights of this badge are
dependent on the badge’s access groups’ floor masks, so it may be possible that a
valid badge gives no access to any of the elevator’s floors.
Elevator Access Grant – The valid badge’s access groups’
floor masks determine
which of the elevator cab’s call buttons are enabled by an elevator access grant.
Relinquishing an elevator access grant does not disable an elevator button that is
enabled by public access or by direct output control.
Public Access – Each
elevator cab’s floor button may be enabled by an active
timezone associated with that floor in the CK721-A’s elevator configuration.
Relinquishing public access does not disable an elevator button that is enabled by an
elevator access grant or by direct output control.
Direct Output Control (low level
interface only) – Each elevator cab’s floor buttons
may be enabled by direct output control from the server’s or the panel’s user
interface. Relinquishing direct output control does not disable an elevator button that
is enabled by an elevator access grant or by public access.
Access Time – At th
e time a valid badge is presented to the elevator reader, the
elevator access time starts. The elevator access time starts over with every
subsequent presentation of a valid badge. At the beginning of the elevator access
time certain floor buttons are enabled by CK721-A outputs per elevator access grant.
Subsequent presentation of a valid badge disables the previous access grant. Only
outputs exclusively enabled by elevator access grants will be disabled at the end of
the elevator access time.
Access Grant Message – When a
valid badge is presented, the panel sends an
elevator access grant message to the server, that includes the badge’s number and
cardholder name.

Johnson Controls CK721-A Specifications

General

Brand	Johnson Controls
Model	CK721-A
Category	Controller
Language	English