WattMaster MUA II - Manual (Page 5)

Technical Guide
MUA II Controller
5
RS-485
Communications
Loop Connection
Typical
Pin 1
Indicator
RAM
Chip EPROM
Chip PAL
Chip
RS-485
Communications
Driver Chip
Real Time
Clock Chip
Mounting
Backplate
Mounting Hole
Typ of 4
Comm
LED
Power
LED
Not
Used
Diagnostic
Blink Code
LED
Modular Service
Tool - Mini Din
Connector
Address Switch
Pull-up Resistors
For Analog Inputs
Analog Input
And Output
Terminal Block
24 VAC
Power Input
EEPROM
Relay Output
Terminal Block
Pressure Sensor
(AIN6 Modular Connection)
Expansion Board
(Modular Connection)
Not Used
RL
Y1
D1
D2
D3
D4
D5
CX3
RAM EPROM
C3
C2
U6
CX6
C1
CX2 U2
U3
PAL
CX4
U4
TUC-5R PLUS
YS101816 REV. 2
V1
V2
V3
V5
V4
TB2
4
NETWORK
TOKEN
16
32
8
SW1
ADD
2
1
ADDRESS
V6
POWER
GND
24VAC
L1
D16
R6
C9
SC1
R1
1
U1
1
D13
C16
VR2
TB4
R27
C13
R10
VR1
C19 C18
U8
CX8 U9
X1
R7 D10
R13
D12
C7 CX10
U10
CX12
U12
U14
CX14
PJ3 PJ2
PJ1
EXPANSION
PRESSURE
SENSOR
T'STAT
C17 D15
R26
C20 R25
R24
R22
U15
CX13
U13
C15
R19
R15
C14
D18 D17
PU1
PU2
PU3
PU4
PU5
PU7
D6
D7
D8
D9
D11
D14
C12
C10 0-5 VDC 0-1 VDC JP1
C1
1
X2
GND
TB3
INPUTS
GND
GND
+VDC
AIN1
AIN2
AIN3
AIN4
AIN5
AOUT1
AOUT2
AIN7
RN4
1
RN5
RS-485
CX5
U5
R
TB1
SHLD
T
COMM
COMM
RN3
1
RN1
U1
CX1
1
LD6
COMM
PWR
LD7
LED1
LED2
LD9
LD8
R1
U7
RV1
VREF ADJ
R28
+VREF
5.11V
TEST POINT
EWDOG
D19
RN2
1
COM1-3
COM4-5
R5
R4
R3
R2
R1
RL
Y2
RL
Y3
RL
Y4
RL
Y5
CX15
(1 MEG)
HH
P1
C21
Controller Overview
Figure 4: MUA II Controller Component Locations