Rice Lake Intrinsically Safe - Manual (Page 64)

58 320IS Installation Manual
Figure 8-1. I/O Module Board
The
320IS
must be installed in a safe area. The internal power supply unit provides DC voltage for the
320IS
’s
main board. The DC power requirements of the I/O panel are as follows:
• Nominal input voltage: 7.5V
• Peak current consumption: 930mA
• Average input current: 630mA
The DC power cable should be attached to connector CN8. Care should be taken to apply the correct DC polarity.
Power connection of the main board is listed in Table 8-2.
Figure 8-2. CN8 - DC Power Connector
Pin Description Wire Color
1 +VDC Green
2 Ground Brown
Table 8-2. Power Connections (CN8)
R34
R22
Q1
C27
R65
Q3
R3
5
R31
R55
R6
R39
Q5
TVS3
C10 C11
R14
R12
R15
D11
R42
R4 3 R45
R8
OP4
Q8
R48
C14
TVS4
R17
R21
D8
R32
CN
6
D5
Q9
R26
R47
R20
R19
R51
R18
R53
C25
R37
Q4 D6
Q2
C18
R57
R58
R62
R63
R25
C26
R10 R11
C15
C28 C29
C36
C6
C7
C1
R1
R3
U12
C21
C24
R23
D7
R36 U9
R56
IF-D91
PD 1
C16
C17 C19
D4
R28
C44
U15
R59
R60
R61
R54
CN7
C35
C9
C8
R5
R7
R13
LD1 LD2
Q6 D9 D10
R38 R40
R41
U3
SW
1
R9
OP2 OP3
LD 4
Q7 D12
R44
R46
TVS6
TVS2
U5
C12 C13
+ C47
R64
D1
Z1
U17
C34 C41
C40
D17
R4
D14 D15
R50 R52
R16
C5
CN8
MH1
OP
6
C43
U14
J5
U10
R33
J4
IF-E96
LD 5
U7
GD1 C30
C31
U6
U2
K2 K1
OP7
K4
TVS5
OP1
OP8 OP9
R49
C4
C3
C20 R29
C23
R30
C32
+
C46
C2
CN2
TVS1
U8
C22
D3
U13
B1
LD3
C33
U16
Y1
GD2
U4
SW
2
U1
D2
T1
C45
F1
U18
R2
CN4
D13 D16
U11
OP5
U19
1
J1
R27
K3
OP10
T1A
CN1
CN3
CN5
2 1 2 1
SO16
1A 2B
1
1 2 N
O
1 2
4A
3 4 5
3 4 5
6
6
HI HI LO LO
N
O
1 2
1 2
HI
3 4 5
3 4 5
+5V
6
6
1
DGND
3 2 4
Tx
5 6
Rx
7
TD(A)
1
DGND
2 3 4
Tx
5 6
Rx
7
TD(A)
8
C
H 1 V+ I+ Gnd- 2
1
20m A
1
LIGHT PORT
RS-232/485
SOW16
1B 2A 3A 3B 4B LO HI LO
AGND
PWR
GND
DGND
IGND Rx
8
Tx
RD(B) TD(B)
1 2
20m A
Rx RD(A) RD(B) TD(B)
Tx
1
V+ I+ Gnd-
ON
1
C
H
ON
RS-232/485
ASSEMBL Y P/N
OPTICAL OUTPUT
DGND
DIGIT AL OUTPUTS - Y CONTACTS DIGITAL INPUTS +5 VOLTS
RD(A) IGND
OPTICAL INPUT
RICE LAKE WEIGHING SYSTEMS
U20
GND +VDC
Connector
CN8