AtoD signals used in tiedowns

16mar06


    The tiedown system uses a signal conditioning board (designed by christian bonilla) that has a pico fuse, voltage dividing resistor, and varistor. This feeds the z-world atod board.

    The AtoD board has an analog multiplexor, optional opamps with unity gain, and an AtoD converter. The signals enter on the sigConditioning board connector J1 pins 2 thru 17 and exit on J2 pins 2 through 32. The table below shows the signals that feed the signal conditioning/atod board.
 
 
Signal
sigCond
Inp J1
out J2
VoltRange
(volts)
resistor
(kOhms)
AtoD
Input
AtoD
Mode
Gain
LdC1com 2,2 0 to 2.5 R1 short AN0- 10 uniPol Dif 1 (a)
LdC1sig 3,4 0 to 2.5 R2 short AN0+ 10 uniPol Dif 1 (a)
N24 4,6 -24 to 0 R3 99.5 AN1- 1 biPol SE- none
P24 5,8 0 to 24 R4 99.5 AN1+ 8 uniPol SE+ none
not_sed 6,10   R5 open AN2-    
not_used 7,12   R6 open AN2+    
I_monp 8,14   R7 46.2 AN3- 1 biPol SE + none
Spd_mon 9,16   R8 46.2 AN3+ 0 biPol SE + none
LdC2.com 10,18 0 to 2.5 R9 short AN4- 10 uniPol Dif 1(a)
LdC2sig 11,20 0 to 2.5 R10 short An4+ 10 uniPol Dif 1 (a)
Enc5Volts 12,22 0 to 5 R11 12.1 AN5- 9 uniPol SE- none
PcuInput 13,24   R12 99.5 AN5+ 0 biPol SE + none
Brk24- 14,26 0 to 24 R13 99.5 AN6- 10 uniPol dif  1(a)
Brk24+ 15,28 0 to 24 R14 99.5 An6+ 10 uniPol dif 1(a)
VelFdBk- 16,30 -10 to 10 R15 46.2 AN7- 2 biPol dif 1 (a)
VelFdBk+ 17,32 -10 to 10 R16 46.2 AN7+ 2 biPol dif 1 (a)
(a): The gain for these aToD modes are 1, but you must cut resistor R8 on the AtoD board.
b) ANx+/- are the inputs to the a/d connectors H1,H2,H5.

discrete inputs:


digital inputs
Description
 pin (1..16)
Little star digital inputs
phase undervoltage realy
 LS 1
E STOP
 LS 2
Psr4 PowerSupply fault
 LS 3
PCU in manual (swicth on pendant)
 LS 4
PCU drive on (1:on)
 LS 5
Door open
 LS 6
Safety (1:ok, 0 openned)
 LS 7
Psr4 MasterContactor (1:closed power,0:open power removed)
 LS 8
Td block not lifted
LS 9
PowerSupply master contactor relay
 LS 10
Control room emg stop
 LS 11
1 pps
 LS 12
Up directional limit Relay (1: not reached, 0 :reached)
 LS 13
Down directional limit Relay  (1: not reached,0:reached)
 LS 14
Amplifier output fault (1: no fault: 0:faults)
 LS 15
Amplifier foldback (1: notInFoldback,0: in foldback)
 LS 16
Universal i/o board #1 (note bits are number from 1 not 0)
Drive OverTemp
 UIO1 1
Drive OK (1: energized,0:not energized)
 UIO1 2
Motor HiTempOk
 UIO1 3
Up final limit (1 not reached, 0: reached)
 UIO1 4
Down final limit (1 not reached, 0:reached)
 UIO1 5
Up directional limit (1: not reached, 0: reached)
 UIO1 6
Down directional limit (1: not reached,0:reached)
 UIO1 7
Hardware watchdog
 UIO1 8
PCU emg stop
 UIO1 9
Reset monitor
 UIO1 10
PCU on (is connected)
 UIO1 11
Alarm relay ( 1: energized, 0: not energized)
 UIO1 12
Control room emgStop Relay
 UIO1 13
Brakes off Monitor
 UIO1 14
Brakes off Command monitoring
 UIO1 15
PCU reset push button.
 UIO1 16
Universal i/o board #2 (note bits are number from 1 not 0)
Cabinet over temp.
 UIO2 1
Power On monitor
 UIO2 2



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