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Leviton DDS8800 Installation And Operation Manual

Made by: Leviton
Type: Installation And Operation Guide
Category: Dimmer
Pages: 12
Size: 1.02 MB

 

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NSI DIGITAL DIMMING SYSTEM

DDS 86/88/96/9800 DIMMER PACKS

INSTALLATION AND OPERATION GUIDE

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

SPECIFICATIONS

Number of Channels:

86/9600 : 6 channels
88/9800 : 8 channels

Output capacity:

86/8800 : 1200 watts (120v) per channel.
96/9800 : 2400 watts (120v) per channel.

Input Power:

8600 : 120/208 V ac, 3 phase, 4 wire 20 A or
        120/240 V ac, 1 phase, 3 wire 30 A
8800 : 120/240 V ac, 1 phase, 3 wire 40 A
9600 : 120/208 V ac, 3 phase, 4 wire 40 A or
        120/240 V ac, 1 phase, 3 wire, 60 A 
9800 : 120/240 V ac, 1 phase, 3 wire, 80 A

Dimmer control system:

Microprocessor digital phase control dimming or
zero-crossing relay mode.

Load filtering:

~ 500us rise time.

Control Input Types:

0 - 10VDC each channel on 9 pin  ‘‘D’’ connector.

MICROPLEX multiplex signal (128 channel) on
three pin XLR type connector.

DMX-512 digital signal (512 channel)
on five pin XLR optional.

Control Wiring:

Class 2 low voltage.

Output Connections:

NEMA 5-15 or 5-20 duplex per ch. standard.
Several other types are optional.

Cooling System:

Thermostatically controlled variable speed fan- 
forced air with intake on front panel, 
exhausting on sides of dimmer.

NSI DIGITAL DIMMING SYSTEM

INSTALLATION AND OPERATION GUIDE

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

SPECIFICATIONS

NSI CORPORATION

1

 


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MOUNTING

The NSI DDS rack mountable dimmers are designed to be mounted in a standard 19" EIA rack.  The packs are provided with two
mounting flanges or  ‘‘ears’’ designed for securing to the front rack mounting rails.  

The optional REAR SUPPORT KIT must be used in all cases where the rack is portable and prone to bumps and rough handling.

The NSI DDS rack dimmers depend upon forced air cooling.  

The rack enclosure shall allow a 2 in. clearance on each side of

the dimmer to insure adequate air exhaust. 

 In some cases  where exhaust air flow is obstructed,  additional exhaust  fans should

be used to remove hot air from the rack.  Free flow of room air to the front of the dimmer packs must be insured.  Any front cover
on the rack must be removed during operation. Keep the air vents located on the front and each  side of the dimmer pack clear of
dust or any obstructions.

If units are to be operated in a small enclosed room, adequate ventilation must be provided  to prevent the room temperature from
exceeding 100 degrees fahrenheit

AC Lighting Loads, Only.

For Indoor Use Only

Utilizer Dans Un Endroit A L’Abri

INSTALLATION AND OPERATION GUIDE

DDS 86/88/96/9800 DIMMER PACKS

MOUNTING

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

2

NSI CORPORATION

 


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INPUT  POWER WIRING

The NSI DDS rack dimmers must be provided with a proper electrical service as listed below:

*8600 : 120/240 VAC 20 amp 3 pole 4 wire plus ground (use minimum #10 AWG) or 
        120/240 VAC 30 amp 2 pole 3 wire plus ground (use minimum #8 AWG). 
8800 : 120/240 VAC 40 amp 2 pole 3 wire plus ground only (use minimum #6 AWG).
*9600 : 120/240 VAC 40 amp 3 pole 4 wire plus ground (use minimum #4 AWG) or 
        120/240 VAC 60 amp 2 pole 3 wire plus ground (use minimum #4 AWG).
9800 : 120/240 VAC 80 amp 2 pole 3 wire plus ground only (use minimum #2 AWG).

* Unit set up for 3 pole 4 wire - for 2 pole 3 wire operation see Service Manual.

Input wiring must be copper wire rated at least 90C and must be protected by a suitable branch  circuit breaker.  Wire sizes show
above in parenthesis are for type S, SO,or similar cords. Other types of cords or cables should be sized according to local electrical
codes. 

All wiring should be done by qualified personnel only!  

WARNING:  Do not connect chassis ground to NEUTRAL or operate without a chassis ground.  To do so may allow exposure
to potentially lethal voltage levels and will void the warranty on this product. 

DDS 86/88/96/9800 DIMMER PACKS

INSTALLATION AND OPERATION GUIDE

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

NSI CORPORATION

3

 


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AC OUTPUT RECEPTACLES

The standard version of the DDS rack dimmers have two AC output receptacles for each channel.  These receptacles provide power
to the lamps in your lighting system.  The amount of power supplied to these outlets controls the intensity of the lamps connected.

 The total lamp wattage connected to each channel must not exceed the rating of each channel (see specifications).  Most 120VAC
lamps and fixtures and some transformer type low-voltage fixtures may be connected to these outlets,  DO NOT connect  motors
or fluorescent lighting to these outlets when the channel is operating in dimmer mode.  

NOTE:  Some inductive type loads such as transformers, ballasts, and motors, with poor power factor may cause the dimmer
to output D.C. type current.  This may cause the load to draw excessive current and overheat,  causing damage to the
transformer, ballast, or motor.  For this reason, it is necessary to insure any inductive loads are  fused individually for their
respective normal operating current.

INSTALLATION AND OPERATION GUIDE

DDS 86/88/96/9800 DIMMER PACKS

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

4

NSI CORPORATION

 


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MICROPLEX MULTIPLEX CONTROL WIRING

Microplex is the control protocol used on most NSI lighting consoles. This system uses a single three conductor cable to transmit
up to 128 channels of dimmer control.  For short distances (50 feet or less) a standard microphone cable may be used to carry both
the control signal and the DC power source for NSI control consoles. Longer distances may be accommodated with 18 gauge or
better cable to reduce voltage losses of the power supply.

Connect the Microplex control cable to either of the three pin XLR jacks.  Since both jacks are wired in parallel, another control
cable may be connected between the remaining jack and another dimmer pack.  Many dimmer packs may be  ‘‘daisy chained’’
together in this manner.

Be sure to set the Channel Address dip switch as required (see MPX ADDRESS SWITCH SETTINGS).

  

ANALOG 0 - 10 VDC CONTROL WIRING.

Each of the dimmer channels of the NSI DDS rack dimmer pack may be operated by an analog 0 - 10 VDC control voltage. This
type of control will provide 0% intensity at 0 volts and 100%  intensity at 10 volts. Any or all of the DDS rack dimmer channels
may be operated in this manner simultaneously with any multiplex control input. Each dimmer will respond to the greater of any
control inputs.

The analog control input uses a standard 9 pin ‘‘D’’ connector which is available from most electronics and computer supply houses.
Connect each of the positive channel control wires to the desired dimmer channel input pins  (see diagram below) of the plug.
Connect the common (ground) control wire to the pin indicated on the diagram. Consult the documentation of the analog control
console or device you are using for the proper connections. The control input impedance is  4.7K ohms. 

When using analog inputs, Dipswitch #10 should be in the up position to disable Channel Level Memory.

DDS 86/88/96/9800 DIMMER PACKS

INSTALLATION AND OPERATION GUIDE

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

MICROPLEX MULTIPLEX CONTROL WIRING

NSI CORPORATION

5

 


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DMX 512 multiplex control wiring

DMX 512 is the United States Institute of Theater Technology (USITT) standard for the digital control of dimmers. NSI DDS
Dimmer products can be converted from Microplex to DMX 512 digital multiplex with a simple  kit available from your dealer. 

DMX-512 is the preferred type of control wiring when many dimmer channels are used, because of the high update rate and the
resistance to interference. It is recommended in locations subject to electrical noise.  DMX-512 only requires 3 wires to transmit
lighting levels for as many as 512 dimmer channels.  Most of the NSI  lighting control consoles can optionally use this interface.

Connect the DMX 512 cable from the control console to the male input connector.  Another cable may  be connected from the
female connector to the male connector on another pack.  Many dimmer packs may be  ‘‘daisy chained’’ and connected together in
this manner.  Be sure to set the Channel Address dip switch as required (see MPX ADDRESS SWITCH SETTINGS).

 

LED INDICATORS

PWR

 (Green) - Indicates the +5 volt power supply of the dimmer is operating.

LINE 1, 2, 3

 (Green) - Indicates the respective pole of the input power is energized.  A blown fuse on an internal power supply

transformer may cause one of these LEDs to not light.  When a 3 pole dimmer is wired for 2 pole operation, the LINE 2 LED will

not

 light. 

MPX

 (Green) - Indicates presence of multiplex signal when steady. 

TEMP

 (Red) - Steady indicates the dimmer is too hot and is preparing to shut down.  Flashing indicates the dimmer has reduced

levels or is shutting down in order to lower internal operating temperatures. (See FAN OPERATION and OVER TEMPERATURE.)

CTL STAT

 (Green) Indicates the relative control level for each channel.

NO LOAD

 (Yellow) Steady indicates the absence of a load on a particular channel output. This may be due to no connection to

the output or a faulty lamp. Flashing of the NO LOAD LED indicates that the respective channel is in the Focus Test Mode and
is forced to full intensity. 

NOTE: Load  ‘‘sensing’’ does not operate when the dimmer channel is above 75% intensity or in the Focus Test mode.  The
No Load indicator is only reliable when the dimmer channel control is off or below 75% and  the respective circuit breaker
is on.

INSTALLATION AND OPERATION GUIDE

DDS 86/88/96/9800 DIMMER PACKS

DMX 512 multiplex control wiring

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

6

NSI CORPORATION

 


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LAMP FOCUS TEST

Pressing the FOCUS TEST button for any channel will force the control for that channel to full on and cause the NO LOAD LED
to flash.  Pressing the button a second time will cause the channel to return to normal control.

CHANNEL  CIRCUIT BREAKERS

Each channel is protected by a magnetic circuit breaker to help prevent overloading the power control devices used in the dimmer.
These circuit breakers also function as master power switches for each channel.

Note:  Lamps may sometimes cause a temporary  ‘‘short-circuit’’ when the filament burns out and cause the circuit breaker
to trip.  This is normal and protects the internal dimmer circuitry from damage.

CHANNEL LEVEL MEMORY.

Whenever dipswitch #10 is in the off (down) position and there is a loss of multiplex signal detected, all channel outputs will remain
at the last received intensity level.  If dipswitch #10 is in the up position, all lights will go out on loss of multiplex. The automatic
sequencing feature must be disabled for Channel Level Memory to operate (see INTERNAL JUMPER / DIPSWITCH SELECTIONS).

FAN OPERATION and OVER TEMPERATURE

The NSI DDS rack dimmer packs employ a highly efficient cooling system and variable speed temperature controlled fan which
functions as follows:

When the dimmer pack is first powered up the fan will immediately come to full speed for two seconds for self test
and then will shut off providing the dimmer is at room temperature.

(NOTE: The fan may run at very low speed when dimmer is idle and at room temperature.)

 

As the dimmer pack warms up when lighting loads are turned on, the fan will turn on at a slow speed and gradually
increase in speed as more cooling is needed.  This reduces unnecessary fan noise and dust collection.

If for some reason the dimmer airflow is blocked or inadequate the TEMP LED will light.

If temperature rises any further, the dimmer will attempt to reduce all lighting levels by  25% increments in order to
reduce temperature.  The TEMP LED will start flashing.

If internal temperature still rises, a thermostat will shut off all output.  The TEMP LED will flash.

Overheating of the dimmer is not normal and may be due to restriction of air circulation, or fan failure.

To adjust the temperature sensing of the DDS 88/9800

( 86/9600 )

 dimmers please see below;

 

IMPORTANT:

  BE SURE DIMMER PACK AT ROOM TEMPERATURE!!

1. Activate the calibration mode by holding down focus test switchs 4 and 8 

( 3 and 6 )

 together for about 6 seconds.You will

notice the fan runs at high speed , the line indicator LEDs begin to flash and the temp LED is  on. NOTE: If the temp led is off
no calibration is required.

2. Press focus test switch 2 

( 1 )

 if calibration is low or focus test switch 3 

( 2 )

 if high.You will notice the temp load indicator

LED should go off indicating proper calibration.

3. Press focus test switch 4 and 8 

( 3 and 6 )

 together to exit the temperature calibration mode.

DDS 86/88/96/9800 DIMMER PACKS

INSTALLATION AND OPERATION GUIDE

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

LAMP FOCUS TEST

NSI CORPORATION

7

 


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MPX ADDRESS SWITCH SETTINGS

When using any of the multiplex control systems the dip switches on the front panel of the DDS rack dimmer  must be set to assign
the desired dimmer channels. The switches set the dimmer pack’s starting address to any channel from 1 to 512 (128 for Microplex).
See the following chart for settings.

For channels 1 - 128 set dipswitch #8 and #9 off and #1-7 as below.

Starting Ch.

1234567

Starting Ch.

1234567

 Starting Ch.

1234567 

1

0000000

2

1000000

3

 0100000

4

1100000

5

0010000

6

 1010000

7

0110000

8

1110000

9

 0001000

10

1001000

11

0101000

12

 1101000

13

0011000

14

1011000

15

 0111000

16

1111000

17

0000100

18

 1000100

19

0100100

20

1100100

21

 0010100

22

1010100

23

0110100

24

 1110100

25

0001100

26

1001100

27

 0101100

28

1101100

29

0011100

30

 1011100

31

0111100

32

1111100

33

 0000010

34

1000010

35

0100010

36

 1100010

37

0010010

38

1010010

39

 0110010

40

1110010

41

0001010

42

 1001010

43

0101010

44

1101010

45

 0011010

46

1011010

47

0111010

48

 1111010

49

0000110

50

1000110

51

 0100110

52

1100110

53

0010110

54

 1010110

55

0110110

56

1110110

57

 0001110

58

1001110

59

0101110

60

 1101110

61

0011110

62

1011110

63

 0111110

64

1111110

65

0000001

66

 1000001

67

0100001

68

1100001

69

 0010001

70

1010001

71

0110001

72

 1110001

73

0001001

74

1001001

75

 0101001

76

1101001

77

0011001

79

 1011001

79

0111001

80

1111001

81

 0000101

82

1000101

83

0100101

84

 1100101

85

0010101

86

1010101

87

 0110101

88

1110101

89

0001101

90

 1001101

91

0101101

92

1101101

93

 0011101

94

1011101

95

0111101

96

 1111101

97

0000011

98

1000011

99

 0100011

100

1100011

101

0010011

102

 1010011

103

0110011

104

1110011

105

 0001011

106

1001011

107

0101011

108

 1101011

109

0011011

110

1011011

111

 0111011

112

1111011

113

0000111

114

 1000111

115

0100111

116

1100111

117

 0010111

118

1010111

119

0110111

120

 1110111

121

0001111

122

1001111

123

 0101111

124

1101111

125

0011111

126

 1011111

127

0111111

128

1111111

          

For channels 129 - 256 Set dipswitch 1-7 as above and set dipswitch #8 on and #9 off.

For channels 257 - 384 Set dipswitch 1-7 as above and set dipswitch #8 off and #9 on..

For channels 385 - 512 Set dipswitch 1-7 as above and set dipswitch #8 and #9 on.

For dipswitch # 10 setting see CHANNEL LEVEL MEMORY.

INSTALLATION AND OPERATION GUIDE

DDS 86/88/96/9800 DIMMER PACKS

MPX ADDRESS SWITCH SETTINGS

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

8

NSI CORPORATION

 


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INTERNAL JUMPER / DIPSWITCH SELECTIONS

Caution: The follow procedures should be performed by qualified personnel only.

Remove all power and remove the cover of the dimmer pack. Locate and change jumper or dipswitch settings on the firing card as
indicated in the following section.  

Softstart

The Softstart mode of operation forces at least a 1/10th second delay between the output being full off to the output being full on
to allow a more gradual warming of the lamp filaments. Thermal shock and inrush currents are  reduced thereby increasing lamp
life.  Softstart should not be used when quick dimmer response is desired such as chasing.

To activate Softstart; remove the jumper block from the pin marked J1 on the firing card or move internal dipswitch S10 to the off
position.  Replacing the jumper block  or turning the switch on will deactivate Softstart.

NOTE: The channels of the DDS rack dimmer pack configured for NON DIM operation will not be affected by softstart.

Non Dim Channels (Relay Mode)

Any of the channels of the DDS rack dimmer pack may be configured as NON DIM channels. This will cause the output of the
channel to go to full on whenever the input signal is over 15%. When the input signal drops to less than 10%, the channel output
goes to full off.  This is the equivalent of a zero-crossing solid state relay. 

To configure a channel for NON DIM operation simply remove the jumper block from the pins on  the firing card as indicated or
turn the switch indicated OFF. Replacing the jumper block or turning the switch ON will restore dimming operation.

SWITCH OR JUMPER OFF = NON DIM

SWITCH OR JUMPER ON = DIMMER 

DIPSWITCH VERSION

JUMPER VERSION

S1

S10

CHANNEL  SWITCH  JUMPER

CHANNEL SWITCH

JUMPER

 

 1 

 S1

  J10 

2

 S2

 J9

 3

 S3

 J8 

 4

 S4

 J7

 5

 S5

 J6 

 6

 S6

 J5

 

 7

 S7

 J4

 8

 S8

 J3

DDS 86/88/96/9800 DIMMER PACKS

INSTALLATION AND OPERATION GUIDE

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

INTERNAL JUMPER / DIPSWITCH SELECTIONS

NSI CORPORATION

9

 


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AUTO SEQUENCING MODE

The DDS rack dimmers can be configured to perform stand alone Automatic Sequencing in place of Channel Level Memory.  This
is useful for lighting displays and show windows.  The eight channels  will automatically fade from one to another in a preprogrammed
pattern and time selected by the front panel dipswitch whenever dipswitch #10 is down and no multiplex signal is detected.  The
Analog control input will continue to operate while the dimmer is sequencing. 

To enable Automatic Sequencing Mode remove jumper from position J2 or turn INTERNAL dipswitch S9 to OFF.  

Front Panel Dipswitch settings

STEP TIME

SWITCH 1,2,3

PATTERN

SWITCH 4,5,6

1 SECOND

OFF,OFF,OFF

SEQUENCE

OFF,OFF,OFF

3 SECOND

ON,OFF,OFF

ODD / EVEN SEQUENCE

ON,OFF,OFF

5 SECOND

OFF,ON,OFF

PAIRED SEQUENCE

OFF,ON,OFF

10 SECOND

ON,ON,OFF

ODD / EVEN ALT

ON,ON,OFF

15 SECOND

OFF,OFF,ON

OUT / IN SEQUENCE

OFF,OFF,ON

30 SECOND

ON,OFF,ON

BUILD

ON,OFF,ON

45 SECOND

OFF,ON,ON

BUILD +

OFF,ON,ON

60 SECOND

ON,ON,ON

RANDOM

ON,ON,ON

Dipswitch # 7 on causes all above sequences to ping-pong. 

INSTALLATION  and OPERATION TIPS

Care should always be taken to:

1) Keep all AC wiring away from control wiring.

2) We also recommend powering up and performance checks be done one unit at a time. This can be a real time saver should
problems arise thus eliminating unnecessary isolation techniques to resolve the problem.

 Technical Support

If addition help or service is needed, contact your dealer or the NSI Technical Services Hotline: (503) 682-6228.

 

 

INSTALLATION AND OPERATION GUIDE

DDS 86/88/96/9800 DIMMER PACKS

AUTO SEQUENCING MODE

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

10

NSI CORPORATION

 


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WARRANTY

NSI Corporation Limited Warranty 

NSI Corporation warrants new electronics products to be free from defective materials and workmanship for a
period of one (1) year from the date of purchase to the original owner when purchased from an authorized NSI
dealer.

The purchaser is responsible for completing and mailing to NSI, within 15 days of purchase, the warranty registration
card enclosed with each product.  NSI products that have been subject to accident, alteration, abuse, or defacing
of the serial number are not covered by this warranty.  The normal wear and tear of items such  as knobs, jacks,
and switches are not covered under this warranty.

If your NSI product requires service during the warranty period, NSI will repair or replace, at its option, defective
materials provided you have identified yourself as the original owner of the product to NSI or any authorized NSI
dealer.  Transportation charges to and from an authorized dealer or the NSI factory for repair shall be the responsibility
of the owner.  All products returned to NSI must have factory authorization for return prior to shipping.

NSI Corporation is not liable for any incidental or consequential damages resulting from defect or failure other
than repairs of the NSI product subject to the terms of this warranty.  This warranty gives you specific legal rights,
and you may have other rights which vary from state to state.  This warranty is expressly in lieu  of all other
agreements and warranties expressed or implied except as may be otherwise required by law.

DDS 86/88/96/9800 DIMMER PACKS

INSTALLATION AND OPERATION GUIDE

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

NSI CORPORATION

11

 


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Date

Revision

6/28/96

Manual update for external temp cal as per rel 1.41

DO NOT INCLUDE THIS PAGE WITH

THE COPIES

INSTALLATION AND OPERATION GUIDE

DO NOT INCLUDE THIS PAGE WITH THE COPIES

Software Revision 1.41, Version C UL, Mfg Q3/96, and above 

12

NSI CORPORATION