ALLEN-BRADLEY BULLETIN 1336 OUTPUT CONTACTOR

ALLEN-BRADLEY
ALLEN-BRADLEY
BULLETIN 1336
OUTPUT CONTACTOR
APPLICATION NOTE #10
January 2, 1997
PURPOSE
The purpose of this document is to provide guidelines for
wiring and control schemes for the Bulletin 1336 AC Drive.
This document is to be used as a suggestion only. Users must
ensure that installations meet applicable codes and are
suitable for the existing conditions.
The Bulletin 1336 User Manual should be used as a reference
to ensure that proper wire selection,routing,and fusing
guidelines are followed.
WHAT THIS NOTE
CONTAINS
Suggested guidelines for applying an Output Contactor to a
Bulletin 1336. The Output Contactor may also be utilized as
part of an E-STOP circuit. Refer to application note #4 1336
E-STOP CIRCUITRY for additional information.
INTENDED
AUDIENCE
This application note is intended to be used by personnel
familiar with the hardware components and programming
procedure necessary to operate the Bulletin 1336/1336VT.
WHERE IT
IS USED
The diagrams, parameter settings, and auxiliary hardware
used in this application note are designed to address
specific issues in many different applications. Some changes
by the Users may be necessary to apply the concepts of this
document to a specific application.
TERMS AND
DEFINITIONS
The Output Contactor (2K) is an electromechanical device
wired between the adjustable frequency drive and the AC
motor.
1
ALLEN-BRADLEY
DESCRIPTION
The Output Contactor is used where it is desired to
electrically isolate the drive from the motor, primarily
during servicing of the motor. An ALLEN-BRADLEY Bulletin 100
(IEC) or Bulletin 500 (NEMA) contactor is recommended.
Figure 1 illustrates the coordination of the Output
Contactor with the drive fault contact. Drive start/stop
operation must ensure that 2K is energized prior to
initiating a start command. The drive fault contact ensures
that the drive output is off before opening the Output
Contactor.
Figure 2 utilizes a timer circuit to interrupt power to the
Output Contactor. This is useful for applications that have
RAMP-TO-STOP or DC INJECTION BRAKING, Parameter 10 set to a
value of 1 or 2. The time delay should be set to a value
greater than the DECEL TIME or the INJECTION BRAKE TIME.
This will ensure that the drive output is off prior to
opening the contactor.
Figure 3 uses the start command to energize the Output
Contactor and the RUN contact to hold-in the contactor until
the drive output is off. This scheme is useful for the
controlled stop modes of operation.
APPLICATION
CONSIDERATIONS
The output contactor should be closed before the drive
begins to run and should open after the drive has been
stopped. If not operated this way voltage transients sent
back to the drive can do one or all of the following......
1. Cause the drive to fault on over current.
2. Cause the drive to fault on over voltage.
3. Degrade the life of the drive.
See the schematics on the following pages for a suggested
wiring schemes for the output contactor. Notice that the
contactor is never closing or opening while the drive is
running.
For 3-wire start/stop control refer to application note #8
2-WIRE & 3-WIRE START/STOP WITH MOD-L1,L2,L3.
For use on ungrounded 120V AC systems refer to application
note #12, 120V AC INTERFACE GROUNDED/UNGROUNDED.
2
ALLEN-BRADLEY
OUTPUT CONTACTOR WITH FAULT CONTACT CONTROL
460V AC 48-62HZ
L1 L2 L3
115V AC
TB1
TB2
1
POT HIGH
2
POT WIPER
BULLETIN
1336
3
POT/SIGNAL COMMON
4
5
0-10V INPUT
6
4-20MA INPUT
7
PULSE INPUT (-)
J2
8
PULSE INPUT (+)
9
5V METER OUTPUT
10
AT SPEED
11
AT SPEED/RUN COMMON
12
RUN
13
FAULT
14
FAULT/NOT FAULT COMMON
15
NOT FAULT
16
ALARM
17
ALARM/NOT ALARM COMMON
18
NOT ALARM
2K
MOD-L3
TB3
115VAC INTERFACE
19
START
20
STOP
21
COMMON
22
JOG
23
REVERSE
24
SW1
25
COMMON
26
SW2
27
SPEED SELECT
28
AUX
29
COMMON
30
ENABLE
START/STOP
CUSTOMER
INTERLOCK
CUSTOMER
INTERLOCK
TB1
M1 M2
M3 GND
2K
FIGURE #1
MOTOR
3
ALLEN-BRADLEY
OUTPUT CONTACTOR WITH TIMER CONTROL
460V AC48-62HZ
L1 L2 L3
115V AC
TB1
1TR
START/STOP
2K
1TR
TB2
1
POT HIGH
2
POT WIPER
BULLETIN
1336
3
POT/SIGNAL COMMON
4
5
0-10V INPUT
6
4-20MA INPUT
7
PULSE INPUT (-)
8
PULSE INPUT (+)
9
5V METER OUTPUT
10
AT SPEED
11
AT SPEED/RUN COMMON
12
RUN
13
FAULT
14
FAULT/NOT FAULT COMMON
15
NOT FAULT
16
ALARM
17
ALARM/NOT ALARM COMMON
18
NOT ALARM
TB3
1TR
J2
MOD-L3
115VAC INTERFACE
19
START
20
STOP
21
COMMON
22
JOG
23
REVERSE
24
SW1
25
COMMON
26
SW2
27
SPEED SELECT
28
AUX
29
COMMON
30
ENABLE
2K
CUSTOMER
INTERLOCK
CUSTOMER
INTERLOCK
TB1
M1 M2
M3 GND
2K
MOTOR
FIGURE #2
4
ALLEN-BRADLEY
OUTPUT CONTACTOR WITH RUN CONTACT CONTROL
460V AC48-62HZ
L1 L2 L3
115V AC
TB1
2K
START/STOP
4K
TB2
1
POT HIGH
2
POT WIPER
BULLETIN
1336
3
POT/SIGNAL COMMON
4
5
0-10V INPUT
6
4-20MA INPUT
7
PULSE INPUT (-)
J2
8
PULSE INPUT (+)
9
5V METER OUTPUT
10
AT SPEED
11
AT SPEED/RUN COMMON
12
RUN
13
FAULT
14
FAULT/NOT FAULT COMMON
15
NOT FAULT
16
ALARM
17
ALARM/NOT ALARM COMMON
18
NOT ALARM
4K
TB3
START/STOP
MOD-L3
115VAC INTERFACE
19
START
20
STOP
21
COMMON
22
JOG
23
REVERSE
24
SW1
25
COMMON
26
SW2
27
SPEED SELECT
2K
CUSTOMER
INTERLOCK
CUSTOMER
INTERLOCK
28
AUX
29
COMMON
30
ENABLE
TB1
M1 M2
M3 GND
2K
MOTOR
FIGURE #3
5