User guide
1 2 3 4 5 6
A
B
C
D
6
54321
D
C
B
A
Title
Number RevisionSize
C
Date : 14- Sep-2001 Shee t of
File : C:\DRA WI N~1\..\3TCB001C.SCH Dr a wn By :
D2
RED
+IN
1
+C
2
+T
3
COM
4
-T
5
-C
6
V-
7
FB
8
Vo
9
COMP
10
V+
11
+ALM
12
-ALM
13
-IN
14
U2
AD595AQ
RED
YEL
Channel 2
VCC
R4
100
C6
.1uf
+
C4 15uf
C12
.1uf
VCC
1
2
3
TB2
C38
.001uf
C42
.1uf
C39
.1uf
POT2
20K
ZE RO
VCC
VEE
R14
100K
VEE
VCC
R15
2K
R17
24.9K
C17
.1uf
C21
.1uf
POT4
100K
SPAN
1
TP2
FOR ZERO / SP AN ADJ.
POT6
20K
VCC
CLK_1
7
6
1
U7B
LM339
3
2
1
411
U5A
LF347N
C32
.001uf
C35
.1uf
C33
.1uf
C28
.1uf
VCC
POT7
20K
VCC
5
4
2
312
U7A
LM339
TEMP_2
+IN
1
+C
2
+T
3
COM
4
-T
5
-C
6
V-
7
FB
8
Vo
9
COMP
10
V+
11
+ALM
12
-ALM
13
-IN
14
U1
AD595AQ
RED
YEL
Channel 1
VCC
R3
100
C5
.1uf
+
C3 15uf
C11
.1uf
VCC
1
2
3
TB1
C37
.001uf
C36
.1uf
C41
.1uf
R19
1M
POT1
20K
ZE RO
VCC
VEE
R11
100K
R10
2K
R16
24.9K
C16
.1uf
C20
.1uf
POT3
100K
SPAN
1
TP1
FOR ZERO / SP AN ADJ.
POT5
20K
VCC
9
8
14
U7C
LM339
12
13
14
U5D
LF347N
C31
.001uf
C30
.1uf
C34
.1uf
POT8
20K
VCC
11
10
13
U7D
LM339
TEMP_1
SET TEMP .
READY TEMP.
SET TEMP .
READY TEMP.
1
TP5
1
TP3
1
TP4
1
TP6
Q1
MPT50N06V
Q7
MPT50N06V
1 2
3
Q6
MAC8D
1 2
3
Q5
MAC8D
1
2
3
TB3
TEMP_2
TEMP_1
TEMP1 output
TEMP2 output
GND
C9
.1uf
C10
.1uf
R7
100K
R1
100K
R8
200
R2
200
1
2
6
4
OPTO3
MOC3023
1
2
6
4
OPTO4
MOC3023
1
2
5
4
OPTO1
MOC8113
1
2
5
4
OPTO2
MOC8113
R21
2K
R22
2K
+12vdc
+12vdc
1
TB8
1
TB6
1
TB17
1
TB16
+12vdc
+12vdc
CHN_1_ CONTROL_OUT
CHN_2_ CONTROL_OUT
CHN_1_ CONTROL_OUT
R27
200
R28
200
1
TB11
1
TB12
1
TB13
1
TB14
CHN_1_ CONTROL_OUT
1
2
3
4
5
6
P2
VCC
VEE
+
C19
15uf
+
C27
15uf
C22
.1uf
C26
.1uf
TEMP_1
TEMP_2
1
2
3
P1
VCC
VEE
AC_LINE
AC_LINE
AC_NEUTRAL
AC_NEUTRAL
CHAN 1 AC OUTPUT
CHAN 2 AC OUTPUT
CHAN 1 DC OUTPUT
CHAN 1 DC OUTPUT
ACL
1
ACN
2
ACG
3
-OUT
4
+OUT
5
PWR1
5V_AC/DC
VCC
NC
1
+CAP
2
GND
3
-CAP
4
Vout
5
LV
6
OSC
7
+V
8
U6
ICL7660
VCC
VEE
+
C29
15uf
+
C40
15uf
C43
.1uf
D7
SA5. 0
AC_LINE
AC_NEUTRAL
TC2_SENSE
TC_1_OK
TC_1_OK
1
2
3
U10A
MM74C08
4
5
6
U10B
MM74C08
R5
4.7K
R6
4.7K
VCC
VCC
Q3
2N3904
R25
10K
R23
100K
VCC
Q4
2N3904
R26
10K
R24
100K
VCC
1 2
RN4A
1M
3 4
RN4B
1M
56
RN4C
1M
7 8
RN4D
1M
1 2
RN2A
10K
34
RN2B
10K
5 6
RN2C
10K
78
RN2D
10K
1 2
RN1A
10K
34
RN1B
10K
5 6
RN1C
10K
78
RN1D
10K
+
C2
15uf
+
C7
15uf
C1
.1uf
C8
.1uf
CHN_2_ CONTROL_OUT
TC_2_OK
CHN_1_ CONTROL_OUT
TC_1_OK
CON
3
TRG
6
THRES
2
RST
4
OUT
5
DIS
1
U4A
LM556C
CON
11
TRG
8
THRES
12
RST
10
OUT
9
DIS
13
U4B
LM556C
R18
200K
R9
200K
C23 .1uf
C14 .1uf
C24
.01uf
C13
.01uf
VCC
VCC
C18
.1uf
CLK_1
CLK_2
R13
200K
R12
200K
C15
1uf
C25
1uf
5
6
7
U5B
LF347N
8
9
10
U5C
LF347N
R20
1M
R29
200K
R30
200K
3
2
1
8 4
U3A
LM358A
5
6
7
U3B
LM358A
VCC
VEE
CLK_1
CLK_2
1
1
2
2
3
3
4
4
JP1
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
JP3
CHN_2_ CONTROL_OUT
TC_2_OK
CHN_1_ CONTROL_OUT
TC_1_OK
+12vdc
+12vdc power input
fan power output
L1
100uH
NOTE 1
NOTE 1
NOTE 2
NOTE 2
NOTE 3
NOTE 4
NOTE 4
NOTE 1: R12 & R13 are installed when the controller board is used for cooling.
For JP3, jumper pins 3 & 4 and pins 7 & 8 for channel 2 control.
NOTE 3: if both channels are used for either cooling or heating, then jumper pins 1 & 2.
NOTE 4: if the channel is used for cooling, C13 or C24 is a .01uf monoceramic cap.
R12 & R13 are removed and jumper wires are installed when the controller board is used for heating.
NOTE 2: For JP3, jumper pins 1 &2 and pins 5 & 6 for channel 1 control.
if one channel is used for cooling and the other channel is used for heating, jumper pins 3 & 4.
if the channel is used for heating, C13 or C24 is a 3.3uf monoceramic cap.
D6
GREEN
+
C45
68uf
+
C44
68uf
1 2
RN6A
220
3 4
RN6B
220
5 6
RN6C
220
7 8
RN6D
220
C47
.1uf X type 250vac
F2
2 amp 250vdc
F1
1 amp
NOTE 5: if both the channels are used for the same function,
that is cooling or heating, only CLK_1 is used for both channels.
NOTE 5
Refer t o NOTE 3
1
2
TB4
+12vdc
1
2
TB5
VCC
VCC
C46
.1uf
VCC
1
TB10
1
2
TB15
VCC
TC2_SENSE
VCC
5 6
RN5C
470
7 8
RN5D
470
CHN2_READY
TC_2_OK
D1
RED
TC1_SENSE
D5
GREEN
VCC
TC1_SENSE
VCC
1 2
RN5A
470
3 4
RN5B
470
CHN1_READY
TC_1_OK
VCC
CHN1_READY
TC_1_OK
CHN2_READY
TC_2_OK
M-class Cooler Control Board
REV C
PN 3TCB-001
NO TE: PCB PN 1CBT-0 01 REV B
Header for Relay Alarm Board
Header for Display Board
Header for Current Transmitter Board
1
2
13
12
U9A
MC74HC11
3
4
5
6
U9B
MC74HC11
CHN1_READY
CHN1_READY
CHN2_READY
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
11
11
12
12
10
10
JP2
For JP2, jumper pins 3 & 4, pins 7 & 8, and pins 11 & 12 for channel 2 control.
For JP2, jumper pins 1 &2, pins 5 & 6, and pins 9 & 10 for channel 1 control.
14
RN3C
4.7K
15
RN3D
4.7K
12
RN3A
4.7K
13
RN3B
4.7K
1
2
3
4
5
6
7
8
P3
WATER_SLIP1
WATER_SLIP2
D3
GREEN
D4
GREEN
WATER_SLIP2
WATER_SLIP1
Q2
MPT50N06V
Q8
MPT50N06V
1
TB9
1
TB7
1
TB19
1
TB18
+12vdc
+12vdc
CHAN 2 DC OUTPUT
CHAN 2 DC OUTPUT
G
1
A1
2
Y1
18
A2
4
Y2
16
A3
6
Y3
14
A4
8
Y4
12
U8A
MC74HC240A
G
19
A1
11
Y1
9
A2
13
Y2
7
A3
15
Y3
5
A4
17
Y4
3
U8B
MC74HC240A
1
TP7
1
TP8
1
TP9
C48
.1uf
C49
.1uf
VCC
VCC
D9
1N4006
D8
1N4006