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Instruction Manual MODEL AM-756

 

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5 1/2 Digit Digital Meter Relay

AM-756

Instruction Manual

 

   

 

WARNING 

This 

symbol 

indicates 

instances 

where 

incorrect  use  may  result  in  death  or  serious 
injury, or cause serious damage to property. 

 
 

CAUTION 

This  symbol  indicates  instances  where 
improper  use  may  result  in  injury  to  the 
operator or serious damage to property. 

 
 
 

 

(1)

 

The insulation class of this device is outlined below. Please ensure the 
insulation class of this device satisfies your usage requirements before 
setting up the device. 

                    Basic insulation 
                    Functional insulation 

AC Power 

Source 

Comparative Output 

Input 

Sensor Power Source 

External Control, BCD Output, Analog Output 

 

DC Power 

Source 

Comparative Output 

Input 

Sensor Power Source 

External Control, BCD Output, Analog Output 

 

(2)

 

Please do not disassemble this device or make improvements or repairs.   
Doing so may cause sudden fire, electrocution or injury. 

(3)

 

In  order  to ensure  power  to equipment,  including  this  device,  is  cut  in 
the  event  of  failure,  please  ensure  an  external  breaker  is  installed  and 
appropriately labeled so that it may be used to cut power to this device 
when a malfunction occurs. 

(4)

 

In order to prevent device damage and failure, please ensure the voltage 
used matches the device’s power rating. 

(5)

 

In order to prevent electrocution and device failure, please do not turn 
the power on until all wiring has been completed. 

(6)

 

Before supplying power to this device, please ensure you check that the 
device  has  been  correctly  wired.  Incorrect  wiring  may  cause  device 
failure, fire, electrocution or malfunction. 

(7)

 

In order to prevent electrocution or fire in the equipment, please check 
that there is clearance around the device before activating power. 

(8)

 

Please do not touch the terminals while power is being supplied to the 
device. Doing so may result in electrocution or malfunction. 

 
 
 

 
 
 

 

 

Usage Conditions 

Place of Installation: Indoors only 
Rated Altitude: 2000m or less 
Overvoltage Category: II 
Pollution Level: 2 
Operating Ambient Temperature and Humidity: 0

50°C 35

85%RH 

(Non Condensing) 

Vibration (durability): 10 to 55 Hz (Half amplitude 0.15mm) 

  X, Y, Z directions 30 min. 

Impact (durability): 100m/s

2

 6 directions, 3 times each 

  (up and down, forward and back, left to right) 

Protective Structure: Equivalent to IP40 (front section) 
Connecting Wire Length: Input and output signal lines and control line – less 

than 30m in length 

 

Safety Precautions 

(1)

 

Watanabe  Electric  Industry  Co.,  Ltd  assumes  no  responsibility  for  any 
special damage, indirect loss or passive loss caused by this device. 

(2)

 

This  device  has  been  developed,  designed  and  manufactured  on  the 
premise  that  it  is  to  be  used  as  general  machinery.  Please  ensure 
attention is  paid  to  safety by  adopting  such  means as a  fail-safe design 
and  a  redundancy  design,  and  by  conducting  regular  checks  on  the 
device,  particularly  when  it  is  being  used  for  purposes  such  as  the 
following, where safety is of utmost importance. 

  Safety devices used for personal protection 

  Rail, aviation and vehicular equipment 

  Medical equipment 

  Incineration systems, nuclear systems 

  Other  purposes  conforming  to  the  conditions  above  which  require  high 

levels of safety 

(3)

 

Please  do  not  use  this  device  for  applications  which  directly  affect 
human lives. 

(4)

 

When  this  device  is  to  be  used  in  conjunction  with  other  products, 
please check for conformance with specifications, provisions of law and 
regulations before use to ensure compatibility. 

(5)

 

As  the  operating  life  of  the  comparative  output  relays  varies  greatly 
depending  on  switching  capacity  and  conditions,  please  ensure  the 
relays  are  used  within  their  rated  load  and  electrical  life.    Using 
deteriorated  relays  could  result in  insulation  failure between  circuits  or 
burnout of the relays themselves. 

(6)

 

This  device  requires  more  than  40  minutes  warm  up  time  from  when 
power is activated in order to operate within its degree of accuracy. 

(7)

 

Please  do  not  wipe  this  device  with  alcohol,  paint  thinner,  benzene, 
acetone or other organic solvents.    When wiping the device, please use 
a neutral detergent. 

 

Table of Contents 

1 BEFORE USE .............................................................................................. 2

 

2 INSTALLATION .......................................................................................... 2

 

3 TERMINAL DESCRIPTION AND CONNECTION METHOD .................. 3

 

4 SETTING OF PARAMETERS ..................................................................... 5

 

5 EXAMPLE DEFAULT SETTING ................................................................ 8

 

6 PARAMETER LIST ................................................................................... 10

 

7 FUNCTION LIST ....................................................................................... 14

 

8 SPECIFICATIONS ..................................................................................... 18

 

9 TROUBLE SHOOTING ............................................................................. 19

 

10 TIMING CHART ...................................................................................... 19

 

11 WARRANTY AND AFTER-SALES SERVICE ....................................... 20

 

 

(1)

 

Application  of  voltage  or  current  exceeding  the  maximum  input 
tolerance may damage the device. 

(2)

 

Please  ensure  the  voltage  used  is  within  the  specified  voltage  range.   
Failure to do so may cause fire, electrocution or malfunction. 

(3)

 

Please  note  that  the  contents  of  this  manual  are  subject  to  change 
without notice as the product is upgraded. 

(4)

 

The  information contained herein is considered  accurate  to the best of 
our  knowledge.  However,  should  there  be  any  errors  or  omissions, 
please contact the distributor or our company. 

(5)

 

After  reading  this  manual,  please  keep  it  readily  available  for  future 
reference. 

Watanabe Electric Industry Co., Ltd.   

2022.07    ED-34880e 

CAUTION 

!

!

       

WARNING 

Summary of Contents for AM-756

Page 1: ...s 1 Watanabe Electric Industry Co Ltd assumes no responsibility for any special damage indirect loss or passive loss caused by this device 2 This device has been developed designed and manufactured on...

Page 2: ...elow Min 120mm Min 70mm 0 6 0 45 92 0 0 8 2 2 External Dimensions 48 96 91 5 102 5 77 86 5 97 5 21 4 11 0 5 2 Mode Enter 88 5 2 3 Mounting the Unit on the Panel 1 After removing the mounting bands fro...

Page 3: ...No Name Details 1 NC Unconnected Please do not use these terminals as relay terminals 2 NC 3 NC 4 HI Terminal 5 LO Terminals connected internally 6 LO Input range settings cannot be made 3 3 3 DB Ran...

Page 4: ...nal 5 GO C GO Output photocoupler Collector terminal 6 GO E GO Output photocoupler Emitter terminal 7 LO C LO Output photocoupler Collector terminal 8 LO E LO Output photocoupler Emitter terminal 9 LL...

Page 5: ...ut Display Displays comparative judgment results Extinguished Comparative output OFF 2 Main Display Displays measurement values Displays group name parameters set values 3 Function Indicators RE Unuse...

Page 6: ...ode Enter Mode Enter Mode or Mode Enter Mode or Mode Mode Enter Mode or Mode Enter Mode or Mode Enter Mode or Mode Enter Mode Enter Mode or Mode Enter Mode or Mode Enter Mode Enter Mode or Mode Enter...

Page 7: ...Process value Input unit Comparative output unit Control terminals 5 7 Key repeat will occur when the or keys are held down 4 5 Changing Parameter Settings The diagram below shows the basic operating...

Page 8: ...thin the range or cancel the setting change Canceling Changes to Set Values Pressing the Enter key during the changing of a set value cancels the value change The set value will revert to the value pr...

Page 9: ...e 3 times Enter Enter 5 4 Comparative Output Settings 1 Set the Comparative Output HI Comparative Value to 60 00 As the setting condition is HH HI the value of HH cannot be lower than the value of HI...

Page 10: ...zero control method Option any apart from NO Digital Zero Value 199999 to 199999 digit 0 Sets the digital zero value when digital zero is ON N B If settings are made while digital zero is OFF they wi...

Page 11: ...o 199999 0 Sets the display value when input is offset display values to Offset Input Values 1 to 8 Changes according to input range See chart below See chart below Sets the input value for offset dis...

Page 12: ...t value LO output ON Decimal point position depends on the decimal point position in identical patterns to LL Comparison Set Values 1 to 8 100000 Measurement value LL set value LL output ON Decimal po...

Page 13: ...etting Condition N10i N09i N08i 8000 Input Value 9 Linearize pre correction display Output Value 9 Linearize post correction display LINE Set Value 16 Linearize Output Value 9 199999 to 199999 digit S...

Page 14: ...t Value Input Range Possible Display Range Resolution 11 0 2V Approx 0 21V 199999 12 2V Approx 2 1V 13 20V Approx 21V 14 200V Approx 210V 23 20mA Approx 21mA 24 200mA Approx 210mA 1V 5V Approx 5 25V 2...

Page 15: ...is activated when Tracking zero correction width Measurement value Tracking zero correction width Parameter Used 7 3 3 Step Wide Function This function changes the resolution of the least significant...

Page 16: ...ontrol terminal 2 Operation Type There are two Start Hold operation types Type A free run and Type B one shot Parameter Used Type A This operation type enters hold status when Start Hold is ON halting...

Page 17: ...h output are undefined at start up N B 2 Open collector output is NPN open collector output N B 3 When the computed result is WAIT the data output will be 000000 2 Over range Signal OVER Output is act...

Page 18: ...power External dimensions 96mm W 48mm H 97 5mm D without optional unit installed Weight Approx 200 to 300g Insulation withstands Voltage AC 500V per minute between input terminal and each of the outp...

Page 19: ...the main unit connector female 9 2 Trouble Shooting Problem Possible Cause Solution The monitor display is blank The display blank function is set to extinguish display Turn OFF the extinguish display...

Page 20: ...e Electric Industry Co Ltd Watanabe Electric Industry Co Ltd will make repairs free of charge 11 2 After sales Service This product was manufactured tested inspected and shipped under strict quality c...

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