Page2of 2
Filename: heat-gpg2.tcw
Date: 12/20/97
By:R. Fenske
HEAT-G
SCHEMATIC
HEAT-GPCB OPTIONAL
SOLENOIDCIRCUIT
HEAT
CIRCUIT
#3
HEAT
CIRCUIT
#2
HEAT
CIRCUIT
#1
POWERSUPPLY
HEAT-GCIRCUITBOARDLAYOUT
THISPAGEDEPICTSTHESCHEMATICS
OFHEATCIRCUITS#2AND#3ANDOF
THEOPTIONALSOLENOIDCIRCUIT.
THEDIFFERENCESBETWEENHEAT
CIRCUITS#1,#2AND#3ARE:
CIRCUIT#1HASANOPTIONALA/D
ENABLEOFTHEHEATZONEANDAN
OPTIONALGATESIGNAL INPUTFOR
ANEXTERNALTRIAC.
ALSO,THESUMMINGCIRCUIT INEACH
HAVEDIFFERENTOP-AMPPINOUTS:
HEATCIRCUIT#1USESU3PIN1
ANDPIN7OUTPUTS.
HEATCIRCUIT#2USESU5PIN1
ANDPIN7OUTPUTS.
HEATCIRCUIT#3USESU5PIN14
ANDPIN8OUTPUTS.
OPTIONALSOLENOID
CIRCUIT
1
3
4
5
2
6
U5
MOC3030
(220V-MOC3041)
R22
100OHM
1WATT
ACC
ACOUTPUT
ACHOT
SCR2
Q6004
SWITCHED
ACHOT
INPUT (BLUE)
SWITCHED
ACC
INPUT (BROWN)
+12V
R20
100OHM
1WATT
10K
R21
Q1
2N3903
SPADE
LUG
NORMALLY
OPEN
INPUT
Rev.Date:9/26/02
By:M.WATTS
HEATCIRCUIT#2
HEATCIRCUIT#3
10
9
8
+
-
LM324
U2
6
7
+
-
LM324
U2
Rx
1N914
20K
+12V
DISPLAYBOARD
HEATZONE
LOCALSETPOINT:
(LOCALANDTOTAL
SETPOINT
PUSHBUTTONS)
J1
R2
1M
1M
R7
0.1
uF
C2
D1
3
2
1
+
-
LM324
U2
THERMOCOUPLE
INPUTFROM
HEATEDZONE
RED
YELLOW
GROUND
THERMOCOUPLE
AMPLIFIER
R1
C1
1M
0.1uF
1
3
4
5
2
6
U4
MOC3030
(220V-MOC3041)
R3
100OHM
1WATT
R12
100OHM
1WATT
ACOUTPUT
TOHEATER
SCR1
Q6004
SWITCHED
ACHOT
INPUT
(BLUE)
SWITCHED
ACC
INPUT
(BROWN)
10
9
8
+
-
LM324
U3
12
13
14
+
-
U3
LM324
5
R8
10K
3
2
1
+
-
LM324
U3
R5 1M
10K
R9
10K
R10
5
6
7
+
-
LM324
U3
10K
R11
"JITTER"CIRCUIT:
OPTIMIZES
TEMPERATURE
STABILITY
SETPOINTCIRCUIT:
USERADJUSTSTOSET
DESIREDTEMPERATURE
OFHEATEDZONE
THERMOCOUPLE
AMPLIFIERCIRCUIT:
DETERMINESACTUAL
TEMPERATUREOF
HEATEDZONE
SUMMINGCIRCUIT:
ADDSTHEJITTER
ANDTHESETPOINT
TOGETHERPRIOR
TOTHECOMPARATOR
CIRCUIT
COMPARATOR
CIRCUIT:
COMPARES
THEACTUAL
TEMPERATURE
(PIN9)TOTHE
SETPOINT
TEMPERATURE
(PIN10)
ACSWITCHING
CIRCUIT:
SWITCHESACTO
HEATEDZONETO
ACHIEVEDESIRED
TEMPERATURE
C3
0.02uF
R15
1M
1M
1M
R13
R14
D2
1N4004
R13
1K
D2 ISSHORTED
FORTHEECD
ANDTHERMAL
DESORBER
HEATERS
+6V
-6V
43Hz
3
2
6
+
-
U1
INA114
R34
200ohm
8
1
5
YELLOWWIREOF
PHONECABLE
TODISPLAYBD.
"ACTUAL"
(PUSHBUTTON)
12
13
14
+
-
U2
LM324
BLACKWIREOF
PHONECABLE
TODISPLAYBD.
"LED"
DISPLAY
BOARD
R6
1K
J1
J1
LEDDRIVERCIRCUIT:
PROVIDESVISUAL
VERIFICATIONOF
HEATERFUNCTIONS
10
9
8
+
-
LM324
U2
6
7
+
-
LM324
U2
Rx
1N914
20K
+12V
DISPLAYBOARD
HEATZONE
LOCALSETPOINT:
(LOCALANDTOTAL
SETPOINT
PUSHBUTTONS)
J1
1M
1M
R7
0.1
uF
C2
D1
3
2
1
+
-
LM324
U2
THERMOCOUPLE
INPUTFROM
HEATEDZONE
RED
YELLOW
GROUND
THERMOCOUPLE
AMPLIFIER
R1
C1
1M
0.1uF
1
3
4
5
2
6
U4
MOC3030
(220V-MOC3041)
R3
100OHM
1WATT
R12
100OHM
1WATT
ACOUTPUT
TOHEATER
SCR1
Q6004
SWITCHED
ACHOT
INPUT
(BLUE)
SWITCHED
ACC
INPUT
(BROWN)
10
9
8
+
-
LM324
U3
12
13
14
+
-
U3
LM324
5
R8
10K
3
2
1
+
-
LM324
U3
R5 1M
10K
R9
10K
R10
5
6
7
+
-
LM324
U3
10K
R11
"JITTER"CIRCUIT:
OPTIMIZES
TEMPERATURE
STABILITY
SETPOINTCIRCUIT:
USERADJUSTSTOSET
DESIREDTEMPERATURE
OFHEATEDZONE
THERMOCOUPLE
AMPLIFIERCIRCUIT:
DETERMINESACTUAL
TEMPERATUREOF
HEATEDZONE
SUMMINGCIRCUIT:
ADDSTHEJITTER
ANDTHESETPOINT
TOGETHERPRIOR
TOTHECOMPARATOR
CIRCUIT
COMPARATOR
CIRCUIT:
COMPARES
THEACTUAL
TEMPERATURE
(PIN9)TOTHE
SETPOINT
TEMPERATURE
(PIN10)
ACSWITCHING
CIRCUIT:
SWITCHESACTO
HEATEDZONETO
ACHIEVEDESIRED
TEMPERATURE
C3
0.02uF
R15
1M
1M
1M
R13
R14
D2
1N4004
R13
1K
D2 ISSHORTED
FORTHEECD
ANDTHERMAL
DESORBER
HEATERS
+6V
-6V
43Hz
3
2
6
+
-
U1
INA114
R34
200ohm
8
1
5
YELLOWWIREOF
PHONECABLE
TODISPLAYBD.
"ACTUAL"
(PUSHBUTTON)
12
13
14
+
-
U2
LM324
BLACKWIREOF
PHONECABLE
TODISPLAYBD.
"LED"
DISPLAY
BOARD
R6
1K
J1
J1
LEDDRIVERCIRCUIT:
PROVIDESVISUAL
VERIFICATIONOF
HEATERFUNCTIONS
U1-5ckt. 3
U1-5ckt. 2
LM 35
1K
+12V
U1-5ckt. 3
U1-5ckt. 2
LM 35
1K
+12V
GREENAND
REDWIRES
OFPHONE
CABLEFROM
DISPLAYBD.
R2
GREENAND
REDWIRES
OFPHONE
CABLEFROM
DISPLAYBD.
C4
10uF
50V
10uF
50V
C4
