AC Output Module
Solid-State
Switch
L1
AC Output Module
Solid-State
Switch
L1
Contact Output Module
L1
L2
L1
L2
L2
L2
1MS
L1
1MS
1M
L2
Although the motor starter is
an inductive load, it does not
need a suppressor because it is
switched by a solid-state device.
The motor needs supressors
because it is an inductive load
switched by hard contacts.
1CR
The pilot light needs a supressor
because it is an inductive load
switched by hard contacts.
Example 1:
An AC output module
controls a motor starter
whose contacts control
the motor.
Example 2:
An AC output module
controls an interposing
relay, but the circuit can be
opened by hard contacts.
The relay contacts control
a solenoid.
Example 3:
A contact output module
controls an inductive load.
1CR
The solenoid needs a supressor
because it is an inductive load
switched by hard contacts.
The interposing relay needs a
supressor because it is an inductive
load switched by hard contacts.
Pilot Light With Built-In
Step-Down Transformer
Suppressor
Suppressor
Suppressor
1MS
1MS
L1
1S
Suppressor
Suppressor
Suppressor
Industrial Automation Wiring and Grounding Guidelines
E115P
13
Figure 10 – Examples of Where to Use Suppression
Figure 11 – Typical Suppression Applications
Figure 11 shows typical suppression circuitry for different
types of loads.
+
–
230/460VAC
3-Phase
Motor
For 3-Phase Apparatus, a Suppressor is Needed
Across Each Phase
For Small Apparatus (Relays, Solenoids,
and Motor Starters up to Size 1)
For Large Apparatus (Contacts up to Size 5)
For DC Relays
120VAC
Cat. No. 700-N24
120/240VAC
VDC
700-Nx
Electrocube 1676-13
Cat. No. 599-K04 or
599-KA04 or ITW
Paktron 104M06QC100
Summary of Contents for H Series
Page 135: ...DeviceNet Media Design and Installation Guide...
Page 144: ...Publication DNET UM072C EN P July 2004 Table of Contents iv...
Page 170: ...Publication DNET UM072C EN P July 2004 1 26 Get Started Notes...
Page 194: ...Publication DNET UM072C EN P July 2004 2 24 Identify Cable System Components Notes...
Page 212: ...Publication DNET UM072C EN P July 2004 3 18 Make Cable Connections Notes...
Page 238: ...Publication DNET UM072C EN P July 2004 4 26 Determine Power Requirements Notes...
Page 248: ...Publication DNET UM072C EN P July 2004 5 10 Correct and Prevent Network Problems Notes...
Page 250: ...Publication DNET UM072C EN P July 2004 A 2 Understand Select NEC Topics Notes...
Page 263: ......
Page 267: ...Isysnet Serial Bus System Selection Guide Pneumatic...
Page 287: ...H Series Fieldbus DeviceNet Adapters PSSCDM12A PSSCDM18PA User Manual...