Pathway Connectivity 4850-8 Users Manual

SNAP

Lighting Control Panel

Pathway Connectivity’s SNAP Lighting Control Panels
provide unified DMX512 control of 0-10VDC outputs and
relay switching from a single enclosure. Intended for use
with LED drivers requiring mains switching and 0-10V
dimming and fluorescent ballasts controllers.

Each SNAP Panel consists of an LC&D GR1400-series
relay panel with a Pathway Connectivity eDIN SNAP
Panel Interface Controller. The interface provides
DMX512 signal control over relay and analog output
pairs. The interface also provides a full non-sequential
DMX soft-patch, for maximum flexibility.

IMPORTANT SAFEGUARDS

Models

4850-8, 4850-16

INSTALLATION/

CONFIGURATION

1. DO

2. E

NOT INSTALL OR USE OUTDOORS

.

QUIPMENT SHOULD BE MOUNTED IN LOCATIONS AND AT
HEIGHTS WHERE IT WILL NOT READILY BE SUBJECTED TO
TAMPERING BY UNAUTHORIZED PERSONNEL

3. THE

USE OF ACCESSORY EQUIPMENT NOT RECOMMEND-

.

ED BY THE MANUFACTURER MAY CAUSE AN UNSAFE
CONDITION

4. DO

ED USE

5. USE

NOT USE THIS EQUIPMENT FOR OTHER THAN INTEND-

.

THIS INSTALLATION GUIDE FOR RELAY HOOK-UP
DIRECTIONS, FOR DATA WIRING OF THE INTERFACE CARD
AND FOR INTERFACE CONFIGURATION

6. T

HIS PRODUCT IS NOT INTENDED FOR USE WITH BLUE

BOX

PROGRAMMABLE INTERFACES OTHER THAN THE

P

ATHWAY

NECTIONS WITH THE POWER

SNAP

RELAY

OUTPUTSPOWER INPUT

RELAY

OUTPUTS

INTERFACE MODULE

OFF.

ON

OFF

OUTPUT
BYPASS

ODD

EVEN

.

. M

AKE ALL CON-

16
15
14
13

12
11

0-10V ANALOG OUTPUTS

10

9

INSTALLATION: MECHANICAL

1. Mount relay panel to suitable surface with appropriate
hardware.

,

1/4" Mounting

Holes

12" 6"

18"

3/4", 1", 1-1/4"
Knockouts
(line voltage only)

CABLECABLE

8
7
6
5

SHLD

DMX IN

COM

D1­D1+

DMX THRU

SHLD
COM

D1­D1+

THRESHOLD

RELAY TEST

DMX TERMINATE

OFF ON

ADDRESS

PATCH

AUX-IN

DMX DISP

POWER IN
STATUS
DMX INPUT

4
3
2
1

AUX INPUTS

COM
AUX1
AUX2

SNAP Panel Controller

ESC

ENTER

3/4" Knockouts

(low voltage)

W

ARNING

: R

OUTING LINE VOLTAGE CABLES THROUGH

3/4", 1", 1-1/4"
Knockouts
(line voltage only)

THE SIDES OF THE ENCLOSURE IS NOT ALLOWED AS IT
WILL VIOLATE

C

LASS

1

NEC

AND CLASS

REQUIREMENTS SEPARATING

2

CIRCUITS

.

2. Plan where to land the Line and Load conductors be­fore routing cables. Write down your plan.

Cont’d...

Mixed voltages are allowed in accordance with the NEC

SNAP Panel Installation/Configuration

INSTALLATION: MECHANICAL (cont’d)

3. Power supply should be supplied from a dedicated
breaker. Land 120V or 277V on appropriate lugs and
Neutral and Ground as indicated.

W

ARNING

TROLLER UNTIL THE BUS HAS BEEN ACTIVATED

: DO

NOT POWER UP THE SNAP INTERFACE CON-

.

INSTALLATION: LINE FAULT CHECK

You may check for faults while landing conductors on the
relays with the following steps:

1. Land the Line and Load conductors on the same Load
terminal lug. Label the Line wire with the breaker ID.

INSTALLATION: LINE VOLTAGE WIRING (cont’d)

2. “Wiggle” the wire: move it slowly from side to side
while gently pulling it away from the lug.

3. Tighten again to the specified torque. Usually this
takes 1/16 to 1/4 of a turn or more.

4. Repeat as needed.

CHASSIS REMOVAL

If the rough-in will create a lot of dust or metal shavings, it
may be best to remove the chassis prior to installation.

2. Check the line. Switch breakers on and clear any
faults. Switch breakers off.

3. Move the Line conductor to the Line terminal lug on
each relay once tested.

INSTALLATION: LINE VOLTAGE WIRING

Torque Specification Instructions

The torque spec for the relay terminal block is 16 in-lbs.
When using a 1” diameter screwdriver (1/2” radius), a
turning force of 32 lbs is required to meet this spec.

Tighten and Wiggle
Copper is ductile, meaning it will compress and flow un­der pressure. To ensure a good connection in the termi­nal lug, use the following procedure:

1. Tighten the terminal to the specified torque.

1. Remove the two locking nylon nuts from the line volt­age backplane (red circles above).

2. With the front plate closed, gently remove the chassis
from the enclosure. Avoid rubbing the sides of the chas­sis against the enclosure

3. Store the chassis in the original shipping case or a
safe location until needed. Replace nylon nuts so they
don’t get lost.

RELAY SPECIFICATIONS

Normally Closed (NC)
30A @ 277VAC Ballast
20A @ 120VAC Tungsten
20A @ 347VAC Ballast
SCCR 18kA @ 277VAC

and local code requirements.

STATUS LED

LED is ON when the relay is OFF. (Relay is NC.)

SNAP Interface Installation/Configuration

INSTALLATION: SNAP INTERFACE MODULE

If the SNAP interface is not already installed, slide the
interface module into the ‘snap-track’ mounted on the
Electronics (Low Voltage) backplane.
Alternately, insert the long edge of the card into the top­most slot of the snap-track, then GENTLY push on the
other long edge until the module snaps into place in the
track.
Plug in the two 10-pin ribbon headers to connect the
interface to the smacker strips controlling the relay coils.
Plug in the 14-pin ribbon header to connect the inter­face to the power supply. The interface is hot-pluggable.

DATA/ANALOG CONNECTIONS

Seven removable terminal strip connectors allow for
easy wiring installation for the DMX data and analog volt­age outputs.

DMX512
W

ARNING
TO LOW-VOLTAGE DATA LINES ONLY
PORTS TO HIGH VOLTAGE SOURCES

DMX IN is wired to the control console output, or to an-

other DMX source.
DMX THRU is wired to additional downstream DMX
receivers (daisy-chain), such as the SNAP interface in an
adjoining cabinet.

DMX wiring connections consist of a shield and a data
pair. Connect DATA– and DATA+ to D- (pin 2) and D+
(pin 3) respectively. Observe the same polarity conven­tion throughout the system. Connect the cable shield or
common to the SHLD/COM terminal (pin 1).

ANALOG OUTPUTS
W

ARNING

-

VOLTAGE CONTROL BUS WIRING ONLY

ANALOG OUTPUTS TO HIGH VOLTAGE SOURCES

Sixteen analog output terminals are provided in groups
of four, with each group having an common terminal. All
common terminals are internally connected (shared).
Outputs are rated at 10VDC, 100mA per channel, sink­ing control. Maximum wire run is 150m (500ft).
Analog outputs are typically wired to the violet-colored
0-10V control bus wire, while the analog common is typi­cally wired to the grey 0-10V control bus wire. While wir­ing the control bus zone, it is very important to ensure
proper wiring continuity.

AUX INPUTS
W

ARNING

The auxiliary inputs act as an override input.
AUX1 to COM: When wired to a normally open momen­tary dry contact closure, will close associated relays when
the momentary is closed.
AUX2 to COM: When wired to a normally open mo­mentary dry contact closure, will open associated relays
when the momentary is closed.

: DMX

: A

: DO

INPUT/OUTPUT PORTS MUST BE CONNECTED

. DO

NOT CONNECT

.

NALOG OUTPUTS MUST BE CONNECTED TO LOW

. DO

NOT CONNECT

.

NOT WIRE AUX INPUTS TO VOLTAGE SOURCES

DMX

STATUS INDICATORS

POWER IN Blue. Glowing steadily indicates power

supply OK; off indicates no power.

STATUS Red. Glowing steadily indicates processor is

OK; off when POWER is lit indicates proces­sor failure.

DMX
INPUT

Amber. Glowing steadily indicates data

signal received; off indicates no valid signal.

INSTALLATION: CONFIGURATION

The SNAP interface is configured directly from the mod­ule, using four push buttons (ESC, Up, Down, and Enter),
six parameter LEDs (Address, Patch, Threshold, Aux-In,
DMX Disp, and Relay Test) and a two– and a three–
character 7-segment display. The module may also be
configured remotely using ANSI E1.20 RDM.
Press any button to awaken the interface. Use the Up/
Down buttons to select the parameter to configure. By
default, the Address LED indicator is lit.
Press and hold the Enter button. Dots will flash at the
bottom of one of the 7-segment screens. Typically the
two-character display will show the relay or output num­ber, while the three character display will show a DMX
channel or other value. Use the Up/Down arrows to ad­just the value for each parameter, as described below.

ADDRESS: SET DMX START ADDRESS

Use DMX Address to set the start channel for a continu­ous channel block, to control the relays in sequence.
With the indicator LED lit beside ADDRESS, press and
hold the Enter button. Dots will flash along the bottom of
the three character display. Use the Up/Down buttons to
select the desired DMX start channel. Press Enter to ac­cept, or Esc to discard the changes.
Valid range is 1 through 512. Practical maximum is 497
(16 relays) or 505 (8 relays). Three dashes indicates a
soft (non-sequential ) patch is in use. Setting a start ad­dress will clear a soft patch.

PATCH: SET DMX SOFT PATCH

Soft patch assigns relays and analog outputs to non­sequential DMX channels, and/or allows multiple relays
and outputs to be controlled by the same DMX channel.
However, a single relay or analog output may not be con­trolled by multiple DMX channels.
When soft patching, a DMX channel must be separately
assigned to each relay and analog output. With the indi­cator LED lit beside PATCH, press and hold the Enter
button. Dots will flash along the bottom of the two charac­ter display. Use the Up/Down buttons to select the relay
or analog output to configure. A hash mark in the upper
left hand corner of the two-character display indicates an
analog output. Press Enter. The dots will now flash along
the bottom of the three-character display. Use the Up/
Down buttons to select the desired DMX address. Press
Enter again. The dots will move back to the to-character
display. Use the same steps to configure the remaining

SNAP Interface Installation/Configuration

PATCH: SET DMX SOFT PATCH (cont’d)

relays and analog outputs. Once done, press ESC to exit.
When Soft Patch is used, the Start Address screen will
display three dashes. Setting a start address will clear
(over-write) a soft patch.

THRESHOLD: SET RELAY TRIGGER THRESHOLD

The relay trigger threshold may required adjustment, due
to fixture performance or to meet energy conservation
criteria. The threshold applies to all outputs.
With the indicator LED lit next to THRESHOLD, press
and hold the Enter button. Dots will flash along the bot­tom of the three-character display. Use the Up/Down ar­row buttons to set a threshold. The threshold applies to
all relay outputs. Valid range is 1% through 99%, or “Lo”
which equals an 8-bit value of 001.
When the threshold is set as a percentage, hysteresis is
3, so at a threshold of 10%, the relay will close when DMX
rises through an 8-bit value of 027, and open when DMX
falls through an 8-bit value of 024.
When the threshold is set as “Lo” there is no hysteresis.

AUX-IN: SET AUXILIARY INPUTS

Auxiliary inputs allow a dry contact closure to force a re­lay to close or an analog output to open (go to full) —in
effect over-riding the DMX value.
For control from a momentary contact, short AUX1 to
COM to close the relay and/or open the analog output.
Short AUX2 to COM to return the outputs to DMX control.
For control from a maintained contact, AUX1 and AUX2
must be jumpered together. When a contact is closed
between COM and AUX1/AUX2, the associated relays
will close and the analog outputs will open. When the
contact is opened, DMX control will be restored.
Both relays and analog outputs must be assigned to AUX
control. With the indicator next to AUX-IN, press and hold
the Enter button until dots flash on the two character dis­play. Use UP/Down to select the desired output - a hash
mark in the upper left of the display indicates an analog
out, while no has is a relay. Press Enter. The dots now
flash on the three character display. Use Up/Down to
switch between 'No' and 'Yes' to assign the output to AUX
control. Press enter to accept and continue selection.
Press ESC to complete and exit.

DMX DISP—INCOMING DMX LEVEL

DMX Display allows the user to review incoming DMX
channel levels, as a trouble-shooting aid.
With the indicator LED lit next to DMX DISP, press and
hold the Enter button. Dots will flash along the bottom of
the three-character display. Use the Up/Down button to
select the DMX channel to review (1 to 512).
The incoming DMX level for the selected channel will be
shown on the two-character display as a percentage (0—
99%), with “FL” indicating 100%, or full on.

RELAY TEST

Relay Test allows the user to open or close relays, inde­pendent of incoming DMX levels, as a trouble-shooting
aid.
With the indicator LED lit next to RELAY TEST, press
and hold the Enter button. Dots will flash along the bot­tom of the two-character display. Use the Up/Down but­tons to select the relay to be tested. Press the Enter but­ton to switch the relay state between ‘Off’ and ‘On’. A
clicking noise should also be heard.
Use the Up/Down arrow to continue through the in­stalled relays. Press ESC to exit at any time.

DMX TERMINATION SWITCH

DMX512 requires that the final receiver in line must have
a termination resistor. If no devices or modules are con­nected to the DMX THRU terminal, the DMX TERMI­NATE switch should be in the ‘ON’ position. If other de­vices or modules are connected to the DMX THRU, the
DMX TERMINATE switch should be in the ‘OFF’ position.

BY-PASS SWITCH

The By-Pass switch, located near the Power Input, closes
all relays and forces all analog outputs open (full intensi­ty). The by-pass may be used to test all circuits without
the need for DMX input. The two-character screen will
display “bP” as the DMX Address.

PRECEDENCE OF OPERATION

Input signal and triggers will take precedence, from high­est to lowest, as follows: Relay Test; By-Pass switch,
Aux input (shorting AUX1 to COM), DMX level.

ANSI E1.20 RDM CONFIGURATION

The SNAP interface card is an RDM responder. The fol­lowing properties may be set remotely, with an appropri­ate RDM controller on the DMX line: DMX Start Address

(global or per subdevice output); Device Label (global);
Subdevice Label; Threshold; Auxiliary Input (per subde-

vice).

CONTROLLER SPECIFICATION

I

NPUT SIGNAL

O

UTPUTS

O

UTPUT RATING

E

XCEEDING THESE RATINGS MAY RESULT IN DAMAGE TO THE DEVICE

C

ONNECTIONS

S

IZE

:

: ANSI E1.11 DMX512-A, ANSI E1.20 RDM

: 16 analog 0-10VDC nominal

: 100mA current drive per channel sinking

10mA current drive per channel sourcing

Two piece compression screw terminals, 16 - 24 AWG

:

3.5” x 6.25” x 1.25” (90mm x 160mm x 35mm)

rev.3

Pathway Connectivity—An Acuity Brands Company
103-1439 17Avenue SE Calgary AB Canada T2G 1J9
tel [phone] fax [phone]

[e-mail]

www.pathwayconnect.com

Printed in Canada

9/15