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Page 9 of 15 

 

Rev7.4 

 

 

 

 

 

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6.2  Vernier Ratio 

The Vernier Ratio is the ratio of the Vernier heater to the heaters used on the 
individual stages.  The Vernier Ratio is adjustable from 100 - 200%.   

  If the Vernier heater is the same power as the individual stage heaters, 

then the Vernier Ratio should be set to 100%.   

  If the Vernier heater is twice the power of the individual stage heaters, 

then the Vernier Ratio should be set to 200%. 

7.  Test Button 

When the test button is held down, the command input is forced to 100% and 
all  of  the  stages  will  turn  on  at  one  stage  per  second.    When  the  button  is 
released, the stages will turn off at the set stage delay rate.   

8.  Indicator LEDs 

Power LED

  

–   On when power is applied. 

Individual Stage LEDs

  

–   On as each stage is turned on. 

Vernier Output

 

LED

 

–   Increases  in  intensity  when  power  is  increasing 

and Analog is selected.  When Time Proportioning 
is selected, turns on when the output is energized.   

Slave Output

 

LED

 

–   Increases in intensity when power is increasing to 

the slave input. 

9.  Outputs 

9.1  Relay Outputs  

The NWVS uses mechanical relays to switch the coils of the load contactors.  
The life span of the NWVS output relays are directly related to the user stage 
delay  setting  as  well  as  the  load  contactor  specifications.    Since  the  stage 
delay and the choice of load contactor is determined by the end user, there 
is  no  guarantee  or  warranty  expressed  or  implied  related  to  the  life  of  the 
output relays or load contactors.   

9.2  Vernier Output 

– Time Proportioned Drive Specifications 

When Time Proportioning is selected, the Vernier output is a 24VDC current 
limited  4  second  cycle  time  PWM  signal.    The  SSR  used  to  control  the 
Vernier  heater  is  driven  from  terminals  TP+  and  TP-.    The  drive 
specifications are power supply related and are shown below.   

Содержание NWVS-4

Страница 1: ...Rev 7 4 06 22 Rev7 4 NUWAVE TECHNOLOGIES INC NWVS 4 NWVS 8 INSTALLATION AND USER MANUAL LOW VOLTAGE STEP CONTROL WITH VERNIER STAGE...

Страница 2: ...aster Slave Selection 8 5 5 Vernier Output Type Selection 8 6 Adjustment Potentiometers 8 6 1 Stage Delay Adjustment 8 6 2 Vernier Ratio 9 7 Test Button 9 8 Indicator LEDs 9 9 Outputs 9 9 1 Relay Outp...

Страница 3: ...termining suitability for use in any application equipment lies solely on the purchaser OEM and end user Suitability for use in your application is determined by applicable standards such as UL cUL an...

Страница 4: ...other misuse misapplication 3 Components which wear or damage with misuse are excluded e g relays 4 NuWave Technologies Inc shall not be responsible for any damage or losses however caused which may b...

Страница 5: ...a common ground with the 24VAC power input ground The diagram below details the internal wiring of the NWVS WARNING EXCEEDING 30MA OR 15V ON THE COMMAND INPUT CAN PERMANENTLY DAMAGE THE NWVS CAUSING...

Страница 6: ...R Input 0 5V OFF OFF OFF OFF OFF 1 5V OFF ON OFF OFF OFF 0 10V OFF OFF ON OFF OFF 2 10V OFF ON ON OFF OFF 0 20mA ON OFF OFF OFF OFF 4 20mA ON ON OFF OFF OFF 0 135 OHM OFF OFF OFF ON ON If the 0 10V ra...

Страница 7: ...OFF 14 ON ON OFF ON 15 ON ON ON OFF 16 ON ON ON ON 5 3 Output Mode Selection LIFO last in first out and FIFO first in first out modes are both available by setting of S2 position 6 Switch S2 Position...

Страница 8: ...cycle time PWM signal The SSR used to control the Vernier heater is driven from terminals TP and TP When Analog is selected the Vernier output is a 0 10V analog signal for driving a phase angle contr...

Страница 9: ...creases in intensity when power is increasing and Analog is selected When Time Proportioning is selected turns on when the output is energized Slave Output LED Increases in intensity when power is inc...

Страница 10: ...Selectable via dipswitch Stages Selectable from 1 to 16 stages via dipswitch More than 8 stages requires an additional NWVS setup for slave operation Stage Outputs 30 VAC 1 0A SPST Mechanical Relays w...

Страница 11: ...if the relay is operating correctly the contacts should be closed when the Red LED is energized Vernier Output Indication Green LED that varies in intensity when analog mode is selected or blinks whe...

Страница 12: ...Page 12 of 15 Rev7 4 NUWAVE TECHNOLOGIES INC 11 Wiring Diagrams 11 1 Command Input Wiring...

Страница 13: ...ICE to switch the power off if safe temperatures are exceeded WARNING HIGH VOLTAGE This control is wired to a transformer Solid State Relay and contactors with high voltage on them This control must b...

Страница 14: ...switch the power off if safe temperatures are exceeded WARNING HIGH VOLTAGE This control is wired to a transformer Solid State Relay and contactors with high voltage on them This control must be inst...

Страница 15: ...ch the power off if safe temperatures are exceeded WARNING HIGH VOLTAGE This control is wired to a transformer Solid State Relay and contactors with high voltage on them This control must be installed...

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