Furman SmartSequencer CN-1800S handleiding

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SmartSequencing™ 101

Note: A pair of wires between the Primary OUT terminals of one

sequencer and the Secondary IN terminals of a second sequencer is

all that is required. Which terminals are used at the IN port or the OUT

port does NOT matter; the wiring scheme is polarity independent. Please

remember, even non-technical personnel can achieve professional results

with SmartSequencing™. Two wire runs connecting two or more units

create a SmartSequencing chain.

Furman SmartSequencing™ products can be connected end-to-end

to form a chain. Each Contractor Series unit has two communication

ports (OUT and IN) divided into 4 terminals, responsible for full-duplex

transmissions via two bi-directional current loops. The messages com-

municated are in the form of ASCII character strings made more efﬁcient

by utilizing a High-Level Data Link Control. The ﬁrst SmartSequencer in a

chain is termed the “Primary” or “Primary Unit”; it controls the “other se-

quencers” in the chain. The “other sequencers” are termed “Secondary”

or “Secondary Units”. The Primary Unit only has one active current loop,

because the Primary Unit only has one Secondary sequencer attached

to it. Once again, when sequencers are attached with SmartSequencing,

the ﬁrst sequencer in the chain is termed the Primary Unit and all the

subsequent sequencers in the chain are termed Secondary Units. And

so the chain continues as additional Secondary Units are attached, OUT

to IN, OUT to IN, OUT to IN, etc. A pair of wires between the Primary OUT

terminals and the Secondary IN terminals is all that is required to create a

continuous SmartSequencing chain.

A Furman SmartSequencing™ chain transmits a message as follows: A

Primary Unit communicates to the ﬁrst Secondary Unit downstream, by

sending commands out of its Primary OUT terminals to the Secondary

IN terminals of the ﬁrst Secondary Unit. If there is a second Secondary

Unit in the chain, the ﬁrst Secondary Unit communicates to the second

Secondary Unit, using its Primary OUT terminals to the second Secondary

Unit’s Secondary IN terminals. This continues down the sequence chain

until the last Secondary Unit. The last Secondary Unit will receive com-

mands into its Secondary IN terminal port but will not use its Primary OUT

terminal port (because there are no Secondary Units after it). Please see

ﬁgure to the left:

SmartSequencing™ commands between units are always accepted

when continuity exists, however SmartSequencing commands that control

the outlets are not always allowed. There are two considerations for de-

ciding whether SmartSequencing control commands are allowed: one, the

state of the other CN-1800S functions (i.e: Key Switch, Start Sequence

Push Button, and Remote terminals e.g. Force Off); and two, whether the

Sequencer is conﬁgured as a Primary or a Secondary unit.

The Primary Unit has an active DE-9 RS-232 port that can be used to

communicate with a local RS-232 control system or an Ethernet Blue-

BOLT adaptor. When a SmartSequencer is selected as a Secondary Unit

(DIP Switch position 8 is DOWN or OFF), the unit’s RS-232 port is deacti-

vated. The Key Switch and Force Off function will also defeat the RS-232

port functions regardless of the units Primary or Secondary status.

Additional SmartSequencing™ information is available throughout this

instruction manual. More information on SmartSequencing™ can be

found at our contractor website www.furmancontractor.com. Details such

as ﬁrmware updates, Quick Start diagrams, etc., can also be found at the

website.

PRIMARY

SECONDARY

(LAST)

PRIMARY LINK

SECONDARY LINK

ETHERNET

DELAY 1

DELAY 2

DELAY 3

POWER

PROTECTION OK

EXTREME VOLTAGE

UNSWITCHED

START

SEQUENCE

15 AMPS

PUSH TO RESET

OFF

REMOTE

DLY

ADJ

1 2 3 4 5 6 7 8 9

1 2 3 4 5

N.O.

N.C.

12V ON

12V OFF

GND

MOM

MNT

PRI

SEC

EVS AUTO

MANUAL

6 7 8 9

Front Panel Overview

Start Sequence Push Button

The Start Sequence button can be used for sequencing power up or

power down. This button is located at the left side of the panel. The

START SEQUENCE pushbutton is there to initiate local operation when

the key switch is set to REMOTE. Please note, setting the key switch to

ON defeats operation of the START SEQUENCE pushbutton, keeping in

mind that both the key switch and the START SEQUENCE button operate

in either Maintained or Momentary mode (DIP Switch position 7). If a

number of units are linked via SmartSequencing, or via Remote Terminal,

and unit drops out of sync, press and hold the START SEQUENCE button

for several seconds; this will initiate a re-sync.