Wiring Notes

Wiring Notes

PinDiagram_MaileView_10pin_Winchester.png

Sample Stick A: Auxiliary

Pins A,B,C,D = Phytron Stepper Motor
Motor Phase = Motor Wire  = 10 Pin  = Connector Wire  = Elco  
   1+           red           A           white          A
   2+           blue          B           black          C 
   1-           yellow        C           red            E
   2-           green         D           brown          H
                             
              not used        E
              not used        F
                              
Pins H, J, K, L = Diode Temp Sensor
 Diode   =   Diode Wire  = 10 Pin  = Connector Wire   
  V+        red              H          green       
  V-        white            J          white         
  I+        red/black        K          red         
  I-        white/black      L          black

Sample Stick B: Auxiliary

none 

LakeShore Diode - ITC Sensor 3

Diode = Diode Wire  = DB9 Pin =  ITC  = Connector Wire   
  V+      red           2    Input Low       green       
  V-      white         1    Input High      white         
  I+      red/black     4    Current +ve     red         
  I-      white/black   5    current -ve     black

Sensor 1 Notes

Heaters (x2) + RhFe Resistor

Wiring   
Pin       Function
A  -->    Heater + (x2, running in parallel)
B  -->    Heater -
C  -->    V+ Resistor
D  -->    V- Resistor
E  -->    I+ Resistor
F  -->    I- Resistor
H  -->    ?
J  -->    spare
K  -->    ?
L  -->    ?

Pin Resistance - NEW Cryostat   
Pins        Expected (Ohm)   Measured (April 2011)
A-B  -->    15-25*            36
C-D   -->   30-40             34.5
C-E   -->   < 15              5.2
C-F   -->   30-40             34.6
E-F   -->   30-40             34.6
A-C   -->   > 1 M             open
A-GND -->   > 1 M             open
C-GRN -->   > 1 M             open

* according to Oxford, each heater is 68 Ohm.
Running parallel (1/R1+1/R2 = 1/Rtotal) gives Rtotal expected = 34 Ohms

Pin Resistance - OLD Cryostat   
Pins        Expected (Ohm)   Measured (April 2011)
A-B  -->    15-25             36.5
C-D   -->   30-40             35.5
C-E   -->   < 15              6.0
C-F   -->   30-40             35.5
E-F   -->   30-40             35.5
A-C   -->   > 1 M             open
A-GND -->   > 1 M             open
C-GRN -->   > 1 M             open