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A
LIGNMENT
M
ODE
D
ATA
F
ORMAT
7
51
Entering Alignment Mode (continued)
Channels must be aligned individually. Bit 4 of the Command word determines which channel
is being aligned. Valid Command Word values are:
16#9000: Channel 1, One Sided Alignment
16#9001: Channel 1, Two Sided Symmetrical Alignment
16#9002: Channel 1, Two Sided Alignment
16#9003: Channel 1, Two Point Linear Alignment
16#9010: Channel 2, One Sided Alignment
16#9011: Channel 2, Two Sided Symmetrical Alignment
16#9012: Channel 2, Two Sided Alignment
16#9013: Channel 2, Two Point Linear Alignment
ANR2 Response
The ANR2 responds by setting the
Acknowledge Bit
and the
In Alignment Mode
bit if the command was
accepted. It will respond with an error code of “0001”, Command Error, if the command was not accepted.
See
starting on page 38 for a full description of the response bits.
At this point, you must reset the
Transmit Bit
(Output Word 0, bit 15), before the ANR2 will accept another
command. The easiest way to do this is to write a value of zero into the Command Word. The ANR2 will
respond by resetting the
Acknowledge Bit
.
Coarse Gain Adjustment for Two Point Linear Alignment
Before you can set positions using the Two Point Linear Alignment method, the ANR2 must receive a suffi-
ciently large reading from the sensor to coarsely set the gain. The ANR2 will flash the front panel LED’s
using the
At Null Point
pattern as shown in table 7.2 below. If the unit is alternately flashing the channel LED
red/green, then the ANR2 has received a sufficiently large reading from the sensor and you can proceed to set
your Minimum Value and Maximum Value points. If the channel LED is only flashing one color, you have to
drive the sensor until a proper reading can be taken. You can also use the Network Input Data to determine
when a proper reading has been taken. Bits 8 and 9 of the Channel Status Word will both be on when a proper
reading has been taken. The
is explained on page 41.
Setting the Null Value
All of the alignment methods except for the Two Point Linear method require you to set the position value at the
null point. Setting the value at the null point should be the first step in aligning the ANR2 for all other methods.
Before you can write the command down to the ANR2, you must physically drive the sensor to its null point.
There are three ways to determine if you are at the null point or which direction you must travel in to reach it.
Status LED
The Status LED for the channel has three distinctive blink patterns when searching for the null point.
Table 7.2 Status LED - Setting Null Point
Channel State
LED Blink Pattern
Description
Alignment Mode
(Move out to reach
Null Point)
Channel LED flashes green three
times in 1.5 seconds (slow blink),
followed by one second off.
The channel is in Alignment Mode, and is
searching for the null point. Movement must
occur to increase the voltage on the B channel
to reach the null point.
Alignment Mode
(Move in to reach
Null Point)
Channel LED flashes red three times
in 1.5 seconds (slow blink), followed
by one second off.
The channel is in Alignment Mode, and is
searching for the null point. Movement must
occur to increase the voltage on the A chan-
nel to reach the null point.
Alignment Mode
(At Null Point)
Channel LED alternately flashes red
and green at 2 Hz. (Slow blink)
The channel is in Alignment Mode, and is at
the null point.
Содержание ANR2
Страница 1: ...MICRO CONTROLS INC ADVANCED U s e r M anual Manual 940 0A032...
Страница 14: ...INTRODUCTION TO THE ANR2 ADVANCED MICRO CONTROLS INC 1 14 Notes...
Страница 18: ...OPERATING MODES ADVANCED MICRO CONTROLS INC 2 18 Notes...
Страница 32: ...INSTALLING THE ANR2 ADVANCED MICRO CONTROLS INC 3 32 Notes...
Страница 36: ...AMCI NET CONFIGURATOR SOFTWARE ADVANCED MICRO CONTROLS INC 4 36 Notes...
Страница 48: ...CONFIGURATION MODE DATA FORMAT ADVANCED MICRO CONTROLS INC 6 48 Notes...
Страница 58: ...ALIGNMENT MODE DATA FORMAT ADVANCED MICRO CONTROLS INC 7 58 Notes...