2
COMPONENTS
The components on the front and back panels of the AMPAQ-PWM are depicted in Figure 2.1. Each component
on the AMPAQ has an identification number that corresponds to a short description given in Table 2.1. The pin out
information for the analog sensor’s mini-DIN connectors and the 16-pin digital I/O connector header are shown in
Figure 2.2.
ID
Name
Description
Electrical
Range
1
Amplifier Command
connector
The input command signal from the DAQ is a voltage
that controls the output current. The AMPAQ-PWM ad-
justs the output duty cycle to maintain the commanded
output current.
±
10 V
2
Current Sense
connector
This connector provides a voltage proportional to the
actual output current. Scaling is 1 Volt = 2.1 Amps. The
AMPAQ-PWM must be connected to a load in order for
the
Current Sense
connector to output a voltage.
3
Status
LED
Indicates if the amplifier is powered up, as well as the
status of the amplifier. When the amplifier is powered
up but disabled, the LED turns red. When the amplifier
is powered up and enabled, the LED turns green.
4
To Load
connector
This connector provides power to the load. The output
current is controlled by the
Amplifier Command
signal.
3.75 A Cont.,
15 A Peak
5
Calibrate
LED
Indicates the calibration status of the connected device
(i.e. Shake Table II).
6
E-Stop
connector
The AMPAQ-PWM requires an E-Stop (emergency
stop) button to be connected. If no E-Stop button is
connected, the AMPAQ-PWM is disabled by default.
7
Auxiliary E-Stop
connector
Connector for an additional E-Stop to enable daisy-
chaining stop commands to multiple devices.
8
From Device
connector
Carries the sensor I/O from the device including en-
coder signals, limit switch states, etc.
9
Limit Switch
LEDs
Indicate the status of the limit switches on the connected
device
10
Encoder
Output connector
Connector to output the device encoder signal to an ex-
ternal DAQ device
11
Digital I/O
Output connector
Connector to output the digital signals from the device
sensors to an external DAQ device
Low:0-0.8 V,
High:2-5.5 V
12
S1
-
S4
Analog Sensor Output
connectors
Used to send the analog sensor signals from the con-
nected device to an external DAQ
13
S1
-
S4
Analog Sensor Input con-
nectors
Used to properly power the analog sensors on the con-
nected device
±
12 V
14
Fuses
Replaceable fuses to protect the amplifier
15
Power switch
Amplifier power switch
16
Power connector
Used to connect the amplifier to the mains
Table 2.1: AMPAQ-PWM components
Caution:
Do not exceed the maximum PWM
Load
ratings 3.75 A continuous, 15 A peak, and 240 VAC.
Caution:
Do not replace the power cable provided with one of lower quality or rating.
AMPAQ-PWM User Manual
DRAFT - August 15, 2016