AccuLoad IV Installation & Maintenance Manual
Installation 28
The replaceable parts on the A4B board are the power fuse and the AC digital output relays. Refer to the
AccuLoad IV parts list (PO06200) for details.
If digital valve control is used for any product- or flow-controlled additive meters connected to pulse inputs
located on the A4M or A4B board, the digital outputs controlling the flow control valve must also be
located on the A4M or A4B board, respectively.
Figure 16: A4B Board Layout
SSR16
SSR15
SSR14
SSR13
SSR12
SSR11
SSR6
SSR5
SSR4
SSR10
SSR9
SSR8
SSR7
SSR1
SSR2
SSR3
TB10
TB9
TB8
TB11
ACIM1
ACIM2
ACIM3
ACIM4
C14
TB2
TB13
TB12
PT1
CN1
U14
U3
ETH2
ETH1
TB14
CN2
CN3
S1
S1
U20
U4
U24
U28
U33
U37
U25
U29
U34
U38
U30
U15
U13
U12
U11
U10 U9
S2
LMOD1
U7
P2
112
110
15
1
12112
1
10
112
1
2
Analog Digital
Output Relays
Power Fuse
DIP Switches
Ethernet
Connections