Precision Control Systems 3629C - Manual (Page 17)

MODEL 3629C 13 04/10/2007
COMMAND CONNECTIONS (Continued)
Note: to insure proper operation,
isolation of the feedback source may
be required. Contact the factory for
further information.
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D.C. Feedback signal
Positive
Common
0 TO 5 Vdc
Input Impedance = 200K
IFB
EFB
P6
Determine that
jumper P6 is in
the EXTERNAL
FEEDBACK
position
Figure 18. External voltage feedback.
*On SP56 unit feedback is 0 to 10 Vdc and input impedance is 400K
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RELAY CONTACTS
CHANGE STATE IF
AN SCR FAILS IN THE
SHORTED MODE
TO EXTERNAL
CIRCUIT AS
DESIRED
SHORTED
SCR
RELAY
Figure 19. Shorted SCR relay connections.
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MOMENTARY CLOSURE RESETS THE CONTROLLER.
(TEMPORARY REMOVAL OF POWER ALSO
RESETS THE CONTROLLER)
TERMINALS # 9 & 10 MAY BE WIRED TO A
REMOTE SWITCH FOR ON/OFF CONTROL.
RELAY CONTACTS CHANGE STATE
WHEN AN OVERCURRENT
CONDITION OCCURS
TO EXTERNAL
CIRCUIT AS
DESIRED
OVER CURRENT TRIP
RESET SWITCH
OVER
CURRENT
RELAY
Figure 20. Over current relay and reset switch connections.