481
--- Control transformer secondary winding.
482
approx. 24
voe
~-------1-
RM
10µfd
+
200µfd
Static
Logic
40
139 (ORG)
r-------;:i
1
START
1
: STOP _j_ :
38
132 THERM. 32 I
I
BROWN
(RED)L_ --- ____ _J
FM
200µfd
RUN CR
D - Denotes wire wrap pin .
0
- Denotes wire terminal board.
38
Figure 6.2 - Bidirectional Control Circuit (simplified)
START Switch ----
CLOSE
t
I I minimum~
~
~
~
duration I I
-
-~::.,___----1-: __
o-4PEN 1--f%-c-~-~-E -
STOPSwitch H ----
1 I I
I I
I 11-1--I ---
P~.'-L t I I I to;~;
FM or RM contactor ----'------'j I l I I
I I '1i' I
1 1 PULL
I
DROP 1
CR Relay I f IN I OUT I
(enables drive) 20 msec
1
~
I Jt~m~~~c r-
8 msec
~
~
8
Note: All times
± 50% msec
Figure 6.3 - Relay Control Sequencing
35
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