Quad Amp Hardware Reference Manual
Getting Started
10
Heat Dissipation
The external mounting options (Opt3, Opt3A and Opt3B) allow the Quad Amplifier to be installed inside
a cabinet, with the Quad Amplifier heat sink mounted external to the cabinet or in an air plenum. In the
case of Opt 3B, provide good air circulation, in a plenum, with a minimum airflow across the heat sink of
70 CFM. Cooling should also be based on the whole system cabinet temperature not exceeding 45
o
C
(113
o
F), as well as providing good airflow across the Quad Amplifier heat sink.
The internal mounting options (Opt4 and Opt4A) are self-contained, stand alone packages. They include
cooling fans and a built-in shunt regulator, with internal shunt resistors for small motor loads of under 10
HP. To ensure long-term reliability, the ambient temperature of the cabinet should not exceed 45
o
C.
A X I S 1
A X I S 2
A X I S 3
A X I S 4
A X I S 1 & 2
A X I S 3 & 4
Q U A D A M P
( B O T T O M V I E W )
A C C - 8 F
AC
C-
8F
P M A C 2
M O T O R
C A B L E
M O T O R
C A B L E
M O T O R
C A B L E
M O T O R
C A B L E
E N C O D E R
S IG N A L S
E N C O D E R
S IG N A L S
J 1 0 J 9
Figure 2 Quad Amplifier Interconnection Diagram
Multiple Units
When more than one Digital Quad Amplifier is installed in a limited area, such as an electrical box,
always mount the amps side by side, and allow 3 inches (8 cm) between amplifiers. Do not stack the
Quad Amplifiers.
Vibration
When the Quad Amplifier is installed near a source of excessive vibration install an isolation device
underneath the Quad Amplifier.
