User`s guide
Chapter 3: System Installation
WARNING:Adept systems require an isolating
transformer for connection to mains systems that are
asymmetrical or use an isolated (impedant) neutral.
Many parts of Europe use an impedant neutral.
DANGER:AC power installation must be performed by
a skilled and instructed person—refer to the Adept Robot
Safety Guide. During installation, unauthorized third
parties must be prevented from turning on power
through the use of fail-safe lockout measures.
Facility Overvoltages Protection
The user must protect the robot from excessive overvoltages and voltage spikes. If the country
of installation requires a CE-certified installation, or compliance with IEC1131-2, the following
information may be helpful: IEC 1131-2 requires that the installation must ensure that
CategoryII overvoltages (i.e., line spikes not directly due to lightning strikes) are not exceeded.
Transient overvoltages at the point of connection to the power source shall be controlled not to
exceed overvoltages CategoryII, i.e., not higher than the impulse voltage corresponding to the
rated voltage for the basic insulation. The user-supplied equipment or transient suppressor
shall be capable of absorbing the energy in the transient.
In the industrial environment, nonperiodic overvoltage peaks may appear on mains power
supply lines as a result of power interruptions to high-energy equipment (such as a blown fuse
on one branch in a 3-phase system). This will cause high current pulses at relatively low
voltage levels. The user shall take the necessary steps to prevent damage to the robot system
(such as by interposing a transformer). See IEC 1131-4 for additional information.
AC Power Diagrams
E
E
N
N
L
L
F1 10A
Adept Cobra
ePLC600/800 Robots
1Ø 200–240 VAC
User-Supplied
AC Power Cable
Note: F1 is user-supplied, must be slow blow.
1Ø
200–240 VAC
20 A
L = Line
N = Neutral
E = Earth Ground
Figure 3-3. Typical AC Power Installation with Single-Phase Supply
Adept Cobra ePLC600/800 Robot, User’s Guide, Rev A
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