Rockwell Automation 161 SERIES A User Manual
Page 17
Bulletin 161
11
Overview of the functions of the programmable digital inputs 1 - 5
The digital inputs 1 to 5 can be programmed for 15 different functions. With exception of the PTC input
(programmable on input 5 only), every input can be programmed for any function. Parameters cannot be
programmed for two different inputs at the same time. The various functions are listed and described in the table
below. Programming is done via parameters
C01...C15
(parameters
C01...C05
correspond to inputs 1 to 5; pro-
gramming for normally closed NC contacts or norm. open contacts NO is carried out via parameters
C11...C15
).
Input /
Function
Function
Description
[FW]
00
Forward
Start/stop forward (see parameter
A0
2)
[RV]
01
Reverse
Start/stop reverse (see parameter
A0
2)
[CF1]
02
The pre-set frequencies may be programmed in two ways:
1.) by entering the frequencies under parameter
A
2
1...A35
.
2.) by selecting the corresponding digital input [CF1] ... [CF4] and
[CF2]
03
Preset frequencies
entering the required frequency under parameter
F01
. Press the ENTER
key to store the value entered. Press the SEL key to check that the value
entered has been stored.
[CF3]
04
[CF4]
05
[2CH]
09
2
nd
Accel/Decel ramp
2
nd
acceleration/deceleration time (parameter
A9
2,
A93
)
[FRS]
11
Controller lock
The motor voltage will be switched off immediately – the motor will coast
(isolation of motor e.g. emergency).
For [FRS] two operation modes can be selected under parameter
b88
1. Synchronisation of the motor speed after the waiting period
programmed under parameter
b03
is over (enter
01
).
2. 0 Hz start after activating [FRS] (enter
00
).
[EXT]
12
External fault
When this input is addressed, a fault indication will be issued (
E12
, e.g. to
be used as the input for thermal contacts)
The fault indication will be cleared with Reset.
Attention! After reset the drive will start again if a start command has
been issued ([FW] or [RV]).
Input
Preset Speed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CF1
ON
ON
ON
ON
ON
ON
ON
ON
CF2
ON
ON
ON
ON
ON
ON
ON
ON
CF3
ON
ON
ON
ON
ON
ON
ON
ON
CF4
ON
ON
ON
ON
ON
ON
ON
ON
[FW], [RV]
input [FRS]
motor speed
waiting time
0Hz start
synchronisation of
the motor speed
Motor will
coast
Motor speed
[FW], [RV]
Input [EXT]
Input [RS] (Reset)
Fault indication relay (AL0-AL2)