Velocity VDOT-SCM-SCI User manual

GLT-299-7-14 Rev.01
Jan 24, 2022
1
Instruction Manual
VDOT-SCM-SCI Sounder Control Module
Before Installation
Please read these instructions carefully and keep for future reference.
The information in this document is subject to change without notice.
For updates please refer to our website.
Note：Follow the requirements for the installation of the product in
accordance with the Specifications. Otherwise it may cause malfunction.
Note：Do not install the product in any location where oil, dust, iron
powder, chemicals, or hydrogen sulphide may occur or affect the product.
It may cause malfunction.
This package contains the following items:
Main unit …………………………………………………………………1
Outer cover …………………………………………………………1
Instruction Manual ……………………………………………………1
Tapping screw ……………………………………………………………2
Pan head screw …………………………………………………………2
EOL Resister (VDOT-RE-10k) ………………………………………………1
General Description
VDOT-SCM-SCI Sounder Control Module with Short Circuit Isolator is
an output module intended for use in addressable two wire systems,
which provides the control of NAC (Notification Appliance Circuit)
devices. The Notification Appliance Circuit can be wired on Class A and
Class B.
General Operation
Normal standby condition: The module receives polling from a control
panel at the regular interval. Polling LED (green) flashes.
Active condition: When receiving a control signal from the control panel,
the module operates NAC devices, and Output LED (red) illuminates.
Trouble condition: If an overcurrent occurs because SLC (Signaling Line
Circuit) is shorted, SCI LED (yellow) illuminates, and the module
communicates to the control panel the short status. The module also
communicates to the control panel the open/short status of NAC.
SCI (short circuit isolator) Function
The module has a built-in short circuit isolator. SCI circuit prevents
entire loop failure in the event of a short between L+ and L- on the loop.
If a short is detected between L+ and L-, the yellow LED indicator is
illuminated. The line between Lin- and Lout- is disconnected
automatically to isolate the short circuit, and short circuit status is
communicated to the control panel. Upon removal of the short condition,
the module will automatically connect between Lin- and Lout- to restore
the entire loop to the normal operating status.
Polling LED (GREEN)
Output LED (RED)
SCI LED (YELLOW)
Address Setting Port
Figure 1
Figure 2
mm(in)
ZETA ALARMS LIMITED
72-78 MORFA ROAD, SWANSEA, SA1 2EN
http://www.velocitydetection.com
Make sure to turn the power off before commencing any wiring work.
Otherwise it may cause electric shock or damage to equipment.
CAUTION
!
Do not use the products outside the rated power supply voltage range
specified in the Specifications. It may cause a fire or damage to
equipment.
CAUTION
!
Do not disassemble, repair, or modify the products. It may cause a fire or
electric shock.
CAUTION
!

GLT-299-7-14 R ev.1
Jan 24, 2022
2
Compatibility Requirement
To ensure proper operation, the module shall be connected to UL listed
Velocity MMP control panel series.
Before Installing
Disconnect power to the control panel before installing the module.
If the module is installed in an existing operational system, inform the
operators and local authorities that the system will be temporarily out
of service.
Mounting
Mount the module directly to 4’’ square electrical box (UL Listed).
Secure the module to the electrical box, as shown in Figure 3.
Figure 3
Address Setting
Use VDOT-AD2 Programmer for setting the address of the module prior
to installation. VDOT-SCM-SCI has an address given at random from
factory. Connect the Programmer with the address setting port to
change the address to any of 1-254 (dec), with reference to the
instruction manual of VDOT-AD2 Programmer. The address can be set
regardless of whether power supply from the control panel is turned on
or off. During setting address, the module does not respond to the
control panel.
Set the address of module according to Job data.
Wiring
All wiring must conform to applicable local codes, ordinances, and
regulations.
Install module wiring in accordance with the appropriate wiring
diagrams.
Note: All wiring is power-limited and supervised.
Refer to the following table for listed NAC devices to be connected.
The number of NAC devices that can be connected varies depending on
settings but shall not exceed 14 devices. Please refer to the
specifications of NAC devices for the consumption current and DIP
switch setting. Select the “temporal” tone in each NAC device for a
standard evacuation pattern.
Do not exceed the maximum current rating 2A and 14 maximum number
of NAC devices.
CAUTION
!
Model Name Manufacturer Description
EVCA-AP-H NITTAN Horn
EVCA-AP-S NITTAN Strobe
EVCA-AP-SH NITTAN Horn & strobe
EVCA-AP-SWP NITTAN Waterproof Horn
EVCA-AP-SHWP NITTAN Waterproof Horn & strobe
Use cable AWG12-22 for wiring. Do not connect different gauge cables
at one terminal in order to prevent loosening. Use a fork terminal for
crimping two cables.
CAUTION
!
Do not connect cables in reverse polarity. Failure to connect the polarity
correctly could result in damage to the module and/or other equipment.
CAUTION
!

GLT-299-7-14 R ev.1
Jan 24, 2022
3
Class A
Connect Listed synchronization module EVCA-AP-SMD10 for the
synchronization of NAC devices.
Class B
EOL (10k ohm) is connected between S+ and S- in VDOT-SCM-SCI.
Refer to Figure 5 for wiring.
Connect Listed synchronization module EVCA-AP-SMD10 for the
synchronization of NAC devices.
Maintenance
Routine inspection: Ensure the module is secure and undamaged.
Operation Test
The purpose of the Operational Test is to confirm the product’s correct
operation.
1) When carrying out site testing of the product, the control panel shall
be set to “one-man-walk test mode” prior to the test.
2) Take any necessary precautions to limit the sounding of the alarm
sounders/bells and any fire service summoning device.
3) Operate a control signal from the control panel to activate NAC
devices, and confirm that the Output LED (red) illuminates.
Note: If the test cannot be carried out as terminal wiring is connected,
remove the wire connected to NAC, and test between terminal S+ and
S-（or R+ and R-）to check the module. (In the active status, 24V is
output between S+ and S- (or between R+ and R-).

GLT-299-7-14 R ev.1
Jan 24, 2022
4
4) After the module is brought into the active condition, reset the
module. It may be necessary to allow a short time to elapse before the
module is reset.
Confirm that the module goes back to the initial status after the
active status is reset. (In the normal status, no voltage is output
between S+ and S- (or between R+ and R-).
5) Short between terminal Lin+ (Lout+) and Lin- (Lout-), and the SCI
LED (yellow) is illuminated. The short circuit isolator isolates the
devices connected after the short-circuited area, which makes these
devices have no response. Upon removal of the short condition, the
area is automatically connected to go back to the normal standby
status, and the SCI LED (yellow) turns off.
FOR WARRANTY SERVICE, RETURN TO:
ZETA ALARMS LIMITED
72-78 MORFA ROAD, SWANSEA, SA1 2EN
http://www.zetaalarmsystems.com
Specifications
Applied Voltage SLC Rated Range 20 to 38VDC
I±Rated Range 16 to 30VDC
SLC Current Consumption Standby 0.8mA
Activated 3.6mA
SLC Line Impedance Up to 50 ohms
Relay（±I）Switching capacity
DC 30V/2A
Number of NAC Circuits 1 x Class A or 1 x Class B
NAC Circuit Rating 16 to 30VDC, 2A (max)
NAC Line Impedance Up to 50 ohms
EOL Device VDOT-RE-10k (10k ohms, 1/4W)
Class B only
SCI on Resistance 0.2 ohms (max)
SCI Fault Detection Threshold 10V (min)
SCI Isolation Current 22mA (max)
Visual Indicator (Status LED) Polling LED （GREEN）
Output LED （RED）
SCI LED （YELLOW）
Ambient Installation
Temperature
0℃to 49℃(32°F to 120°F)
Storage Temperature -20℃to 60℃(-4°F to 140°F)
Max Relative Humidity Up to 93％RH，non-condensing
Environment Indoor dry use only
Maximum quantity per loop 127 units
Terminal Screw AWG12 to 22
Address setting VDOT-AD2 Address Programmer
Dimensions 124mm H x 124mm W x 34.5mm D
(4.882’’ H x 4.882’’ W x 1.358’’ D)
(Mount to a 4’’ square by 2⅛’’ deep
box)
Weight Approximately 167g (5.9oz)
Conformity UL864

GLT-299-7-14 R ev.1
Jan 24, 2022
5
Warranties
1.1 Zeta warrants to the customers that:
(a) all products supplied hereunder will be of merchantable quality
and will comply with any specification agreed between Zeta and
customer.
(b) it is not aware of any rights of any third party in the market which
would or might render the sale of the products, or the use of any of
the trade marks on or in products, or the use of any of the trade
marks on or in relation to the products, unlawful.
1.2 In the event of any breach of the Zeta’s warranty in Clause 1.1(a)
whether by reason of defective materials, production faults or
otherwise, Zeta’s liability shall be limited to:
(a) replacement of the products in question; or
(b) at the Zeta’s option, repayment of the price where this had been paid.
And the warranty period is three (3) years from the shipment from
Zeta’s factory.
1.3 Notwithstanding anything to the contrary in this warranty terms,
Velocity shall not be liable to the customer by reason of any
representation or implied warranty, condition or other term or any
duty at common law, or under the express terms of this warranty
terms, for any consequential loss or damage whether for loss of
profit or otherwise and whether occasioned by the negligence of Zeta
or its employees or agents or otherwise, arising out of or in
connection with any act or omission of Zeta relating to Zeta or
supply of the products, their use by any customer.
1.4 Customer shall indemnify Zeta against all loss, damages, liabilities,
costs and expenses which Zeta may suffer or incur as a result of or
in connection with any breach by customer of this warranties terms
or any laws or regulations of any jurisdiction or any rules of any
governing authorities.