Wiring To Control Terminals; Using Shielded Control Cables - GE AF-650 GP Design And Installation Manual

Installation
Terminal Parameter
42
2 2
50
53
54
55
Table 2.3
Terminal Parameter
61
68 (+)
69 (-)
01, 02, 03
04, 05, 06
Table 2.4 Terminal Description

2.5.5.3 Wiring to Control Terminals

Control terminal connectors can be unplugged from the
adjustable frequency drive for ease of installation, as
shown in Figure 2.18.
1. Open the contact by inserting a small screwdriver
into the slot above or below the contact, as
shown in Figure 2.20.
2. Insert the bared control wire into the contact.
2-12
Terminal description
Default
setting Description
AN-50 [0] No Programmable analog
operation output. The analog
signal is 0–20 mA or
4-20 mA at a
maximum of 500 Ω
- +10 V DC 10 V DC analog
supply voltage. 15 mA
maximum commonly
used for potenti-
ometer or thermistor.
AN-1# Reference Analog input.
Selectable for voltage
AN-2# Feedback
or current. Switches
A53 and A54 select
mA or V.
- Common for analog
input
Terminal description
Default
setting Description
Serial communication
- Integrated RC-Filter for
cable screen. ONLY for
connecting the screen
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.
TM
AF-650 GP Design and Installation Guide
3.
4.
See 12 Terminal and Applicable Wire for control terminal
wiring sizes.
Figure 2.20 Connecting Control Wiring

2.5.5.4 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, electrical 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
Figure 2.21
1
2
Table 2.5
DET-767A
Remove the screwdriver to fasten the control wire
into the contact.
Ensure the contact is firmly established and not
loose. Loose control wiring can be the source of
equipment faults or less than optimal operation.
2 2
Min. 0.025 in [16 mm ]
Equalizing cable
2 2
(16 mm ).