Velocity VL-SLC User manual

www.velocitydetection.com Doc: GLT-294-7-2 Issue: 001 Date: 04/0 /20
General
The plug-in SLC module provides power for and handles communications to the analogue addressable devices. The
SLC continuously monitors the analogue values of all devices and displays this value on the control panel as a
percentage of the alarm threshold value. Up to 254 addresses (500mA max load) can be connected to a single SLC.
The addressable devices use soft addressing using the VDOT-AD2 handheld programming tool which helps minimise
the potential for error and reduce the installation time associated with traditional hard addressing. The AUTO-LEARN
facility provided in the Velocity series control panel saves considerable time and effort when installing a new loop or
when changing device configuration.
It allows the system to learn for itself what devices have been installed on the loop.
Installation
The MMP panel uses the expansion port number to reference modules. It is recommended that any SLC modules are
fitted first to the first expansion ports, so that the loop circuit numbers follow a logical sequence (loop 1 in port 1,
loop 2 in port 2 etc.)
1. Ensure that the installation area is free from any cables or wires that may get caught, and that there is enough
space on the DIN rail to mount the module. Also ensure that the DIN clip underneath the module is in the open
position.
2. Place the module onto the DIN rail, hooking the metal earth clip underneath onto the rail first.
. Once the earth clip is hooked, push the bottom of the module onto the rail so that the module sits flat.
4. Push the plastic DIN clip (located at the bottom of the module) upwards to lock and secure the module into
position.
VL-SLC [SIGNALING LINE CIRCUIT MODULE] Installation Instructions
ATTENTION: THE PANEL MUST BE POWERED DOWN, AND DISCONNECTED FROM THE BATTERIES BEFORE INSTALLING
OR REMOVING ANY MODULES.

www.velocitydetection.com Doc: GLT-294-7-2 Issue: 001 Date: 04/0 /20
5. Once the module is secured to the DIN rail, simply connect the supplied CAT5E cable to the module’s RJ45 port.
6. Connect the other end of CAT5E cable to the nearest unoccupied RJ45 port on the termination PCB.
TRM R 45 Port Address Designation
Each RJ45 port on the Velocity termination has its own unique port address. This port address is important to keep
note of as it is displayed on Alarm/Trouble messages and is used when configuring or setting up cause and effects on
the panel (See Velocity MMP operation manual GLT-261-7-2).
Securing the modules
The modules are designed to clip together to make them more secure. In addition, the MMP panel is supplied with
Din rail stoppers. These should be fitted before the first module, and after the last module on each rail.
Before Powering the Panel On
1. To prevent the risk of a spark, do not connect the batteries. Only connect the batteries after powering on the
system from its main AC supply.
2. Check that all external field wiring is clear from any open, shorts and ground faults.
. Check that all the modules have been installed properly, with correct connections and placement
4. Check that all switches and jumper links are at their correct settings.
5. Check that all interconnection cables are plugged in properly, and that they are secure.
6. Check that the AC power wiring is correct.
7. Ensure that the panel chassis has been correctly earth grounded (See NFPA 70).
Before powering on from the main AC supply, make sure that the front panel door is closed

www.velocitydetection.com Doc: GLT-294-7-2 Issue: 001 Date: 04/0 /20
Power on Procedure
1. After the above has been completed, turn the panel on (Via AC Only). The panel will follow the same power up
sequence described in initial power up section above
2. The panel will now display one of the following messages:
Message
Meaning
Panel has
not detected any modules fitted
during its power up check.
Power down the panel and check that the
expected modules are fitted, and that all module
cables are correctly inserted.
Note that the panel will need at least one
module fitted to run.
The panel has detected a new module added to
a port that was previously empty.
This is the usual message seen the first time a
panel is configured
The panel has detected a different type of
module fitted to a port that was previously
occupied.
The panel has detected a module fitted to a port
that is the same type, but it`s serial number has
changed.
This could happen if a loop module was swapped
with another one, for example.
The panel has detected no module fitted to a
port that was previously occupied.

www.velocitydetection.com Doc: GLT-294-7-2 Issue: 001 Date: 04/0 /20
The panel has detected no module changes, so
has powered up and started running
1. Check that the module configuration is as expected using the 

 and 

 to navigate the through the port
numbers. Press the 

 icon to confirm the changes.
2. The new module is now configured into the panel and is ready for use.
. Since the batteries are not connected, the panel will report them as removed, lighting the yellow “Trouble” LED,
intermittently sounding the trouble buzzer, and displaying battery removed message on the screen.
4. Connect the batteries, ensuring that the polarity is correct (Red wire = +ve) & (Black wire = -ve). Acknowledge
the trouble event via the display screen, and reset the panel to clear the battery fault.
5. The panel should now remain in the normal condition, and you can configure the panel as normal.
Field Wiring
Class X Wiring
NOTE:
The terminal blocks are removable to make wiring easier.
ATTENTION:
DO NOT EXCEED POWER SUPPLY RATINGS, OR MAXIMUM CURRENT RATINGS.

www.velocitydetection.com Doc: GLT-294-7-2 Issue: 001 Date: 04/0 /20
Class A Wiring
Wiring recommendations
The VL-SLC’s are rated for 500mA each, but in a typical UL installation (with no NAC devices powered from the loop,
maximum quiescent current will be less than 60mA.
Wire Gauge
(AWG)
Maximum Wiring Run
(Metres)
18
861
16
1290
14
2000
Note:
Detectors can be fitted to isolator bases, or fitted between isolator
modules for Class X wiring. Manual stations should be fitted between
isolator modules.
Note:
If an SLC using Class wiring is used for 2 or more detection zones,
short circuit isolators, or devices with built in short circuit isolators (such as
interfaces) should be fitted to the zone boundaries to prevent a single
short circuit affecting more than one zone.
NOTE:
• Line capacitance shall not exceed 0.1µf (100nF)
• Inductance shall not exceed 1mH
• Resistance shall not exceed 50 Ohms.
RECOMMENDED CABLE:
Twisted pair cable.
Shield of cable should be terminated to the
earth bar in the panel.

www.velocitydetection.com Doc: GLT-294-7-2 Issue: 001 Date: 04/0 /20
Front Unit LED Indications
LED Indication
Description
Wire Break + (Yellow)
Illuminated yellow when a loop break on the positive line is detected.
Wire Break
-
(Yellow)
Illuminated yellow when a loop break on the negative line is detected.
Short A (Yellow)
Illuminated yellow when a short circuit on the loop A side is detected.
Short B (Yellow)
Illuminated yellow when a short circuit on the loop B side is
detected.
Loop TX (
Green
)
Flashing
green
when the loop card is transmitting information.
Loop RX (
Green
)
Flashing
green
when the loop card is receiving information.
Com. (Green)
Pulses to show communication between the module and the motherboard.
Specifications
Specification
VL
-
SLC
Part Number
62
-
400
Design Standard
UL864 10
th
Edition
Approval
UL Laboratories
Rated Voltage
5VDC Nominal (24V
-
9V)
Maximum SLC
Current
2
00mA
5
00mA
Maximum SLC Resistance
5
0Ω
(25
Ω
per core)
2
0Ω
(10
Ω
per core)
Maximum SLC
Capacity
25
4
Addresses
Maximum SLC Cable
Length
*
2KM
Maximum SLC
Capacitance
100nF
Maximum SLC
Baud Rate
4 4
bits per second
(typical)
Maximum Ground Fault Impedance
10K
Ω
Wiring Class
Class X or Class A
[Power limited & Supervised]
Operating Temperature
0°C ( 2°F) to 49°C (120°F)
Max Humidity
9
% Non
-
Condensing
Size (mm) (HxWxD)
105mm x 57mm x 47mm
Weight
0.15KG
Recommended Cable Sizes
18 AWG to 14 AWG (0.8mm
2
to 2.5mm
2
)
*Depending on what cable size is used. A 2KM maximum SLC distance is assuming 2.5mm
2
(14AWG) cables is used .
Compatible Devices/Accessories
Model No.
Description
VDOT
-
PY
Addressable Photoelectric Smoke Detector
VDOT
-
PY
/7
Addressable Photoelectric Smoke Detector
(UL 268 7
th
edition)
VDOT
-
PYH
Addressable Multisensory Detector
VDOT
-
PYH/7
Addressable Multisensory
Detector
(UL 268 7
th
edition)
VDOT
-
H2
Addressable Heat Detector
VDOT
-
H2
-
H
Addressable High Temperature Heat Detector
VDOT
-
DPH
Addressable Dual Optical/Heat Detector
VDOT
-
MiniIP
Addressable Mini Input Module
VDOT
-
DIP
-
SCI
Addressable Dual Input
Module with SCI
VDOT
-
DOP
-
SCI
Addressable Relay Dual Output with SCI
VDOT
-
DOP
-
AC240V
-
SCI
Addressable Relay Dual Output Module for AC240v with SCI
VDOT
-
ZMU
Addressable Conventional Zone Module with SCI

www.velocitydetection.com Doc: GLT-294-7-2 Issue: 001 Date: 04/0 /20
VDOT
-
S6
Addressable Sounder Base
VDOT
-
SCI
Short Circuit Isolator
VDOT
-
STB
-
RL
Low Power Relay Base
VDOT
-
STB
-
SCI
Short Circuit Isolator Base
VDOT
-
UB4
Standard Detector Mounting 4” Base
VDOT
-
UB4
-
6
Standard Detector Mounting 6” Base
VDOT
-
ADP
Adaptor Plate
VDOT
-
AD2
Handheld Address
Programmer