Safety
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Started
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parameters
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the motor
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operation
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UL Listing
Information
Affinity User Guide
89
Issue Number: 5 www.controltechniques.com
N
Any signal cables which are carried inside the motor cable (i.e. motor
thermistor, motor brake) will pick up large pulse currents via the cable
capacitance. The shield of these signal cables must be connected to
ground close to the point of exit of the motor cable, to avoid this noise
current spreading through the control system.
N
The drive enable terminal is a positive logic input only. It is not affected
by the setting of Pr
8.29
Positive logic select
.
N
The common 0V from analog signals should, wherever possible, not be
connected to the same 0V terminal as the common 0V from digital
signals. Terminals 3 and 11 should be used for connecting the 0V
common of analog signals and terminals 21, 23 and 30 for digital
signals. This is to prevent small voltage drops in the terminal
connections causing inaccuracies in the analog signals.
Figure 4-38 Default terminal functions
*The Drive enable terminal is a positive logic input only.
Ensure the logic sense is correct for the control circuit to be
used. Incorrect logic sense could cause the motor to be
started unexpectedly.
Positive logic is the default state for Affinity drive.
CAUTION
NOTE
NOTE
NOTE
1
11
Polarised
signal
connectors
21
31
41 42
0V common
External 24V supply
0V common
Analog frequency/speed
reference 1
Connections for
single-ended input
signal
Connections for
differential input signal
0V common
0V common
0V common
Analog input 2
Analog input 1
0V common
1
2
5
6
3
21
22
23
24
25
26
27
28
29
30
31
41
42
Drive active
Reset
Run forward
Fire mode activate
Analog input 1/
input 2 select
Spare
Drive enable*
Drive OK
Speed / frequency
0V common
Analog
frequency/speed
reference 2
4
7
11
9
10
Torque (active
current)
Analog
input 3
4
8
35
39
35
36
37
38
39
A(+)
B(-)
GND
A(+)
B(-)
Building
Automation
Network
Relays (over voltage
category 11)
Содержание Affinity
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