Elmo ISP manual Activating the loss of tacho protection velocity mode only, For Vtm

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7.1.4Activating the loss of tacho protection (velocity mode only)

Activating the loss of tacho protection is done by installing R14 (different

value for 65V or 135V amplifiers),R15, and R16 as follows:

 

1530

 

R14

(65V) = -------

(Kohm)

 

Vam

 

 

2730

 

R14

(135V) = ------

(Kohm)

 

Vam

 

 

100 x Vam

 

R15

= -----------

(Kohm)

 

Ip x Rm

 

R16

< 10 ohm

 

Vam - Armature voltage at maximum application speed.

Ip - Amplifiers' rated peak current limit.

Rm - Total ohmic resistance of motor.

R9 should be calculated and inserted according to the tacho voltage at maximum application velocity (Vtm):

For Vtm > 7.5V:

insert R9 = 301Kohm.

For Vtm < 7.5V:

2250

R9 = -------

(Kohm)

Vtm

ISP - Rev 6/95

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Contents Rev 6/95 ISP Rev 6/95 ELMO-WARRANTY Performance Read chapters Table of Contents Balance adjustment Current limit adjustment Description Standard featuresProtective functions Type Designation Technical specificationsOperation of the servo control Inputs Velocity mode Current mode Velocity control using armature voltage feedbackCurrent limits Current loopTime dependent peak current limit Dynamic contouring of continuous and peak current limits Operation of the shunt regulator Loss of velocity feedback signal Temperature protectionProtective functions Short circuit protectionCurrent Command Monitor Input ISP Control Board Page Contact rating 0.5A, 200V, 10W Terminals of ISP Panel Version Mother Board terminals MBA-ISP/N GND Terminals for ISP mounted in 3U size ENCContact rating 0.5A, 200V, 10W Page MBA ISP/3UE Wiring Installation procedures MountingLoad inductance AC power supply2Vdcmin Vdc 0.9Vdcmax ISP GND Wiring diagramsDo not ground GroundAC ISP ISP Control Connections Tachogenerator Feedback ISP Control Connections Armature Voltage Feedback Disable by Low Start Up ProceduresEnable by High ISP Control Board Selecting the reference signal gain Converting the amplifier into current modeSee .1 for calculation of other values For Vtm Activating the loss of tacho protection velocity mode onlyVelocity control using tachogenerator feedback Latch mode of the protective functionsActivating the dynamic contouring of the current limits For ISP-X/135 For ISP-X/65IxR compensation Balance adjustment Amplifier adjustment and diagnosticsCurrent limit adjustment Adjustment of the IxR compensation Adjusting the motor speed velocity mode onlyResponse adjustment velocity mode only Typical velocity response waveforms ISP Rev 6/95 LED diagnostics Tables and Summaries Adjusting trimmersAppendix a Response adjustment current loop Fig. A-1 Typical current response waveforms ISP Rev 6/95 Velocity Torque Appendix B Current limits contour adjustmentDynamic contouring with armature voltage feedback ISP Rev 6/95 SP1 TOP View SP1 Side View SP1 Side View SP2 TOP View SP2 Side View SP2 Side View SP3 TOP View SP3 Side View SP3 Side View SP4 TOP View SP4 Side View SP4 Side View ISP Rack Mounting 8T and 15T TOP View ISP Rack Mounting 3U/8T Side View 128.7 Front Panel for ISP 3U/8T ISP Rack Mounting 3U/15T -SIDE View ISP Rack Mounting 3U/15T Side View Front Panel for ISP 3U/15T ISP Rack Mounting 3U/12T and 3U/19T TOP View ISP Rack Mounting 3U/12T -SIDE View ISP Rack Mounting 3U/12T Side View Front Panel for ISP 3U/12T ISP Rack Mounting 3U/19T -SIDE View ISP Rack Mounting 3U/19T Side View Front Panel for ISP 3U/19T Enclosure Mechanical Outline Europe List of Elmo Service Centers