Terminal description
Terminal
Parameter
Default
setting
Description
Serial communication
61
-
Integrated RC filter for
cable screen. ONLY for
connecting the shield
when experiencing
EMC problems.
68 (+)
O-3#
RS-485 Interface. A
control card switch is
provided for
termination resistance.
69 (-)
O-3#
Relays
01, 02, 03
E-24
[0] No
operation
Form C relay output.
Usable for AC or DC
voltage and resistive
or inductive loads.
04, 05, 06
E-24
[0] No
operation
Table 3.2 Terminal Description
3.4.5.3 Wiring to Control Terminals
Control terminal connectors can be unplugged from the
drive for ease of installation, as shown in
.
1.
Open the contact by inserting a small screwdriver
into the slot above or below the contact, as
shown in
2.
Insert the bared control wire into the contact.
3.
Remove the screwdriver to fasten the control wire
into the contact.
4.
Ensure the contact is firmly established and not
loose. Loose control wiring can be the source of
equipment faults or less than optimal operation.
Illustration 3.12 Connecting Control Wiring
3.4.5.4 Using Shielded Control Cables
Correct shielding
The preferred method in most cases is to secure control
and serial communication cables with shielding clamps
provided at both ends to ensure best possible high
frequency cable contact.
If the ground potential between the adjustable frequency
drive and the PLC is different, electric noise may occur that
will disturb the entire system. Solve this problem by fitting
an equalizing cable next to the control cable. Minimum
cable cross-section: 0.025 in
2
(16 mm
2)
.
50/60Hz 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 100nF capacitor (keeping leads short).
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:
Alternatively, the connection to terminal 61 can be
omitted:
3.4.5.5 Control Terminal Functions
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.
Installation
AF-650 GP Quick Guide
10
DET-759A
3
3