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3 Checking the AC voltage on single phase
Perform the following AC voltage check with the
wall breaker ON.
1. Measure the customer supplied voltage and
write the voltage below.
Note: If the voltage is outside the
acceptable range, turn the wall
breaker OFF and advise the
customer to have a licensed
electrician correct the problem.
Measured voltage:
________________Vac
2. After you perform this procedure for ALL
the power supplies, go to "Installing the
Frames" on page 1-7.
DANGER
An electrical outlet that is not correctly
wired could place hazardous voltage on
metal parts of the system or the
products that attach to the system.
1. When installing the system, do not
plug in any power cord until
instructed to do so. All signal
cables must be connected first.
2. If the power cord to the I/O device
cannot be disconnected, use one
hand to connect the signal cables.
During an electrical storm, do not
handle cables, connectors, or station
protectors for communications, work
stations, printers, or telephones.
1-6
Installing the System
Sample nominal voltages and ranges.
(Voltage VAC 6 Hz)
(Range VAC, min.-- max.)
1
12
2 8
24
(Voltage VAC 5 Hz)
(Range VAC, min.-- max.)
1
11
22
24
9 -- 11
1 4 -- 127
18 -- 22
2 8 -- 254
9 -- 11
96.5 -- 119
193 -- 238
21 -- 259
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