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50/60 Hz ground loops
With very long control cables, ground loops may occur. To
eliminate ground loops, connect one end of the shield-to-
ground with a 100 nF capacitor (keeping leads short).
Figure 2.22
Avoid EMC noise on serial communication
This terminal is grounded via an internal RC link. Use
twisted-pair cables to reduce interference between
conductors. The recommended method is shown below:
Figure 2.23
1
Min. 0.025 in
2
[16 mm
2
]
2
Equalizing cable
Table 2.6
Alternatively, the connection to terminal 61 can be
omitted:
Figure 2.24
1
Min. 0.025 in
2
[16 mm
2
]
2
Equalizing cable
Table 2.7
2.5.5.5 Control Terminal Functions
Adjustable frequency drive functions are commanded by
receiving control input signals.
•
Each terminal must be programmed for the
function it will be supporting in the parameters
associated with that terminal. See
for
terminals and associated parameters.
•
It is important to confirm that the control
terminal is programmed for the correct function.
See
for details on accessing
parameters and
for details
on programming.
•
The default terminal programming is intended to
initiate adjustable frequency drive functioning in
a typical operational mode.
2.5.5.6 Terminal 53 and 54 Switches
•
Analog input terminals 53 and 54 can select
either voltage (-10 to 10 V) or current (0/4–20
mA) input signals
•
Remove power to the adjustable frequency drive
before changing switch positions.
•
Set switches A53 and A54 to select the signal
type. U selects voltage, I selects current.
•
The switches are accessible when the keypad has
been removed (see
). Note that some
option cards available for the unit may cover
these switches and must be removed to change
switch settings. Always remove power to the unit
before removing option cards.
•
Terminal 53 default is for a speed reference signal
in open-loop set in
DR-61 Terminal 53 Switch
Setting
•
Terminal 54 default is for a feedback signal in
closed-loop set in
DR-63 Terminal 54 Switch
Setting
Installation
AF-650 GP
TM
Design and Installation Guide
DET-767A
2-13
2
2
Summary of Contents for AF-650 GP Series
Page 3: ...Safety AF 650 GPTM Design and Installation Guide DET 767A ...
Page 9: ...Contents AF 650 GPTM Design and Installation Guide DET 767A ...
Page 19: ...Introduction AF 650 GPTM Design and Installation Guide 1 10 DET 767A 1 1 ...
Page 35: ...Installation AF 650 GPTM Design and Installation Guide 2 16 DET 767A 2 2 ...
Page 41: ...Start Up and Functional Tes AF 650 GPTM Design and Installation Guide 3 6 DET 767A 3 3 ...
Page 55: ...About Programming AF 650 GPTM Design and Installation Guide 5 10 DET 767A 5 5 ...
Page 91: ...Application Setup Examples AF 650 GPTM Design and Installation Guide 6 36 DET 767A 6 6 ...
Page 103: ...Status Messages AF 650 GPTM Design and Installation Guide 8 4 DET 767A 8 8 ...
Page 123: ...Warnings and Alarms AF 650 GPTM Design and Installation Guide 10 10 DET 767A 10 0 ...
Page 127: ...Basic Troubleshooting AF 650 GPTM Design and Installation Guide 11 4 DET 767A 11 1 ...
Page 129: ...Terminal and Applicable Wir AF 650 GPTM Design and Installation Guide 12 2 DET 767A 12 2 ...
Page 161: ...Specifications AF 650 GPTM Design and Installation Guide 13 32 DET 767A 13 3 ...