120V AC Interface Grounded / Ungrounded

ALLEN-BRADLEY
ALLEN-BRADLEY
BULLETIN 1336
MOD-L3 INTERFACE
GROUNDED/UNGROUNDED
APPLICATION NOTE #12
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
The Bulletin 1336-MOD-L3 Logic Interface may be used on a
grounded or ungrounded 120VAC supply.
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.
DESCRIPTION
GROUNDED 120VAC The MOD-L3
internal circuitry of the
system, it is recommended
secondary be fused. Refer
Interface is isolated from the
drive. For a grounded 120VAC
that only the "hot" side of the
to figure 1 for the diagram.
UNGROUNDED 120VAC When a 120VAC supply does not have a
grounded secondary, fuses are required for both the "hot"
and "common" legs of the transformer. Refer to figure 2 for
the diagram.
APPLICATION
The transformer and fusing selected for the 120VAC power
1
ALLEN-BRADLEY
CONSIDERATIONS
input
must be capable of supplying 8.5ma of current for each
to the MOD-L3 Interface.
2
ALLEN-BRADLEY
115V AC INTERFACE WITH GROUNDED SUPPLY
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 (-)
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
MOD-L3
115VAC INTERFACE
TB3
START
19
START
20
STOP
21
COMMON
22
JOG
23
REVERSE
24
SW1
25
COMMON
26
SW2
27
SPEED SELECT
STOP
CUSTOMER
INTERLOCK
CUSTOMER
INTERLOCK
28
AUX
29
COMMON
30
ENABLE
TB1
M1 M2
M3 GND
MOTOR
FIGURE #1
3
ALLEN-BRADLEY
115V AC INTERFACE WITH UNGROUNDED SUPPLY
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 (-)
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
MOD-L3
TB3
START
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
STOP
CUSTOMER
INTERLOCK
CUSTOMER
INTERLOCK
TB1
M1 M2
M3 GND
MOTOR
FIGURE #2
4