Vicon V960D Series Specifications download pdf (Page 40)

Page 40 of 61

SPECIFICATIONS (CONTINUED)

switch or until a programmable amount of time that is longer than the time it takes for the door to

typically open. When the door open limit switch is sensed or the programmable time has elapsed,

then the PLC will de-energize the interposing relay.

d. Overhead Door Close - When closing an overhead door, the PLC, through interposing mechanical

relays, will energize the relay to power the door closed until it senses the close limit switch or

until a programmable amount of time that is longer than the time it takes for the door to typically

close. When the door close limit switch is sensed or the programmable time has elapsed, then the

PLC will de-energize the interposing relay.

e. Overhead Door Stop - When opening or closing a overhead door, a stop command sent to the

PLC will stop the door(s) in mid travel. Doors that are designed for a stop circuit shall have an

interposing stop relay wired. When the stop command is issued, this relay will energize and stop

the door. For doors that do not have a stop circuit, the stop command will de-energize the open

and close relays. For doors that do not have a hardwired electrical interface external to the PLC

(local pushbutton station); then if this door is not commanded open or closed, then the stop

command shall be continuously issued by the PLC.

f. Overhead Door Dwell - A overhead door shall be able to be reversed by the control officer or IR

sensor without forcing the officer to first stop the door. The PLC logic shall determine that the

door is being requested to be reversed and shall stop the door at that moment for a programmable

amount of time. After a sufficient dwell period, the door will reverse direction and continue until

it completely reaches the open or close limit switch. This dwell time shall be programmable.

g. Sequencing Groups of Doors - When more than one door at a time is being unlocked, then the

doors shall be sequenced such that no two doors simultaneously load the power supply. For

solenoid type doors, this period of time is during the inrush of the solenoid, for motorized locks

this period of time is until the lock has completed its cycle, and for sliding doors this period of

time is one fourth of its cycle time. For locks that require power to lock, the PLC shall also

sequence the locking action. In any case, the system must be programmed to handle all

emergency and group unlocking without failure of the available power supply.

h. Door Breaches, Openings and Closings - Each controlled and monitored door shall be configured

to have the ability to alarm or have a “Breach Alarm”. A violation occurs when a door is opened

and/or unlocked by some means other than the PLC. If Harris County determines that a specific

door not Breach, then that door shall be configured to either display status only or to display

status and to sound a short warning. All Breaches, Breach silencing, Breach resetting, changes of

state of door switches, doors securing, and doors becoming unsecure shall be recorded separately

to the Reporter/Logger system.

i. Door Switch Debounce - Logic must be programmed into the PLC so that the door must be secure

for a sufficient amount of time to avoid a switch-bouncing problem. This time must be able to be

configured.

j. Emergency Evacuation - Any door shall be configured to be part of any emergency evacuation

group. When Emergency Evacuation is activated for the group then each door in the group will

unlock as explained in Sequencing Groups of doors.

k. Group Unlocking - Any door shall be configured to be part of any group for group unlocking and

locking. Doors selected to the group mode shall be show with a blue outline around the door

icon. Selecting the Group Unlock icon and then the ON icon will open only the doors

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 60 61

Comments to this Manuals

No comments

Vicon V960D Series Specifications Page 40

Comments to this Manuals

Related products and manuals for Security cameras Vicon V960D Series