Page 7-2
Revised 1/05
ITW Dynatec c. 2004
DYNAMINI ASU Manual #20-25
Printed Circuit Board
Notes:
The PC board contains the controller’s software/ CPU chip and non-volatile memory.
The green, temperature zone LEDs cycle on and off as each heater outputs.
The PCB is mounted under the ASU’s cover.
The fuses are designated F1 thru F13 below. See diagram for sizes. The fuses are the only replace-
able parts on the pc board. Each temperature zone is fused with two fuses.
Layout of Components on PC Board
S4
S3
S2
S1
ON
230v
X2
X5
J1
X7
X6
Pump
N
L
Ready
Dip switches:
not used
54321
X3
F1
X4
1
10
F2 F3 F4 F5
F6
F7 F8
F10
F12F11
F9
F13
X8X11
LED1 (5v OK)
LED2 (12v OK)
LED3 LED4
Hopper
LED5
LED6 LED7
X1
L
N
HOSE1 HEAD1 HOPPER HOSE2 hEAD2
HOSE1 HEAD1 HOSE2 HEAD2
HOPPER
1
11
No Com NC
X9
X10
Transformer
Connect to
Hopper Heater
Connect to RTDs:
1&2 = Hopper
3&4 = Hose 1
5&6 = Head 1
7&8 = Hose 2
9&10 = Head 2
Relay
Relay
Connect to
Keypad at J1
Voltage Selector:
“230” = 200-240v
“115” = 100/120v
2 pump fuses
(2A slow)
Temperature
zone fuses,
2 per zone
(6.3A fast)
PCB fuse
(1A slow)
Connect to
Main Switch
Customer’s
Power Input
Mounting
Bracket/
Heat Sink
Heater rtd for
Hose/ Head 2
Heater RTD for
Hose/ Head 1
Ground
Terminal (2)
Mounting
Holes (2)
Software/
CPU chip
for Dynatec
use
{
Over Temp
Thermostat
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