Table of Contents
Advertisement
Ensemble HPe 150/200
TB308
OUTPUT SWITCHES
CONNECTION REQUIRED
1
EACH OUTPUT 80 mA MAXIMUM
2
DIODE REQUIRED ON EACH OUTPUT THAT DRIVES AN INDUCTIVE DEVICE (COIL), SUCH AS A RELAY.
3
Figure 3-17:
Suppression diodes must be installed on outputs driving relays or other inductive devices. This protects the
outputs from damage caused by inductive spikes. Suppressor diodes, such as the 1N914, can be installed
on all outputs to provide protection. It is important that the diode be installed correctly (normally reversed
biased). See
Figure 3-17
for an example of a current sourcing output with diode suppression.
86
OP
1
TB308-1
+
LOAD
-
3
TB308-6
2
TB308-5
1
TB308-4
0
2
TB308-3
OM
TB308-2
Outputs Connected in Current Sinking Mode
for an example of a current sinking output with diode suppression and
Chapter 3
-IO Expansion Board
5-24 VDC
+
LOAD
-
+
LOAD
-
+
LOAD
-
www.aerotech.com
+
-
3
Figure 3-16
Advertisement
Table of Contents
