Control Terminal Functions; Terminal 53 And 54 Switches - GE AF-600 FP Series Design And Installation Manual

Installation
50/60 Hz ground loops
With very long control cables, ground loops may occur. To
eliminate ground loops, connect one end of the screen-to-
ground with a 100 nF capacitor (keeping leads short).
Illustration 2.19 50/60 Hz Ground Loops
Avoid EMC noise on serial communication
This terminal is connected to earth via an internal RC link.
Use twisted-pair cables to reduce interference between
conductors. The recommended method is shown in
Illustration 2.20:
Illustration 2.20 Twisted-pair Cables
2
1
Min. 16 mm
2 Equalizing cable
Table 2.8 Legend to Illustration 2.20
Alternatively, the connection to terminal 61 can be
omitted:
Illustration 2.21 Twisted-pair Cables without Terminal 61
2
1
Min. 16 mm
2 Equalizing cable
Table 2.9 Legend to Illustration 2.21
TM
AF-600 FP Design and Installation Guide

2.5.8.5 Control Terminal Functions

Frequency converter functions are commanded by
receiving control input signals.
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2.5.8.6 Terminal 53 and 54 Switches

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WARNING
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.
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DET-768b
Each terminal must be programmed for the
function it will be supporting in the parameters
associated with that terminal. See Table 2.6 for
terminals and associated parameters.
It is important to confirm that the control
terminal is programmed for the correct function.
See 4 User Interface for details on accessing
parameters and 5 About Programming for details
on programming.
The default terminal programming is intended to
initiate frequency converter functioning in a
typical operational mode.
Analog input terminals 53 and 54 can select
either voltage (0 to 10 V) or current (0/4-20 mA)
input signals
Remove power to the frequency converter 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 Illustration 2.22).
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
2 2
23