Wiring To Control Terminals; Using Shielded Control Cables; Control Terminal Functions; Correct Shielding - GE AF-650 GP Quick Manual

Installation
Terminal Parameter
61
3 3
68 (+)
69 (-)
01, 02, 03
04, 05, 06
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 Illustration 3.10.
1. Open the contact by inserting a small screwdriver
into the slot above or below the contact, as
shown in Illustration 3.12.
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.
10
AF-650 GP Quick Guide
Terminal description
Default
setting Description
Serial communication
- Integrated RC filter for
cable screen. ONLY for
connecting the shield
when experiencing
EMC problems.
O-3# RS-485 Interface. A
control card switch is
O-3#
provided for
termination resistance.
Relays
[0] No
Form C relay output.
E-24 operation
Usable for AC or DC
E-24 [0] No voltage and resistive
operation or inductive loads.
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
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. SeeTable 3.2 for
terminals and associated parameters.
•
It is important to confirm that the control
terminal is programmed for the correct function.
See 5 User Interface for details on accessing
parameters and for details on programming.
DET-759A
2 2)
(16 mm .