531
Error Indicators
Section 12-2
12-2 Error Indicators
The following errors are displayed at the LED indicators at the top of the MC
Unit’s front panel.
80
The position is
slipping. When the
servo is locked, the
present position
changes (when an
absolute encoder is
used).
The Servo Driver’s encoder
frequency dividing ratio
setting and the MC Unit’s
encoder resolution (parameter
setting) are different.
When the position slips without
changing the sign, the slippage
amount will change roughly in
proportion to the distance from
the origin.
Set the MC Unit’s
encoder resolution to the
same value as the Servo
Driver’s encoder
frequency dividing ratio
setting (U Series: Cn-0A;
W Series: Pn201, G
Series: Pn44).
With G-series Servo Driv-
ers, set Pn45 to 0.
81
The Servo Driver’s reverse
mode setting and the MC
Unit’s parameters do not
match.
The present position absolute
value does not change, but the
sign changes.
Turn OFF Cn-02, bit 0
(the servo reverse mode
setting).
Set the MC Unit parame-
ters to a combination of
either of the following:
Forward with plus voltage
and forward with encoder
increase, or reverse with
plus voltage and reverse
with encoder increase.
82
Self-holding is not
cleared for the start
line of the program
as it is shown in the
manual.
Program execution
does not end even
when the operation
is completed.
The time required for the
operation is shorter than the
CPU Unit’s cycle time, so the
Program Execution End
signal is not being
transmitted to the CPU Unit.
This occurs when the target
position is the same as or right
next to the present position
before starting.
Insert “G04 0.1” (DWELL
TIMER) in front of the
G79 in the MC Unit’s
G-language program.
83
Position slippage
has occurred when
using an absolute
encoder for a G-
series Servo Driver.
The axis was moving when
the servo was locked.
Check if the axis is stopped
when the servo is locked.
Stop the axis before lock-
ing the servo.
No.
Problem
Probable causes
Items to check
Remedy
CS1W-MC221
CS1W-MC421
Содержание CS1W-MC221 -
Страница 1: ...Motion Control Units Cat No W359 E1 04 CS1W MC221 V1 421 V1 OPERATION MANUAL ...
Страница 2: ...CS1W MC221 V1 421 V1 Motion Control Units Operation Manual Revised February 2008 ...
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Страница 27: ...xxviii Conformance to EC Directives 6 ...
Страница 133: ...106 Installation Section 2 2 2 2 4 Dimensions CS1W MC421 CS1W MC221 ...
Страница 173: ...146 Connecting Peripheral Devices Section 2 7 ...
Страница 227: ...200 Command Area Section 3 6 ...
Страница 351: ...324 Interface Specifics Section 5 4 ...
Страница 513: ...486 Absolute Encoder Interface Specifications Section 9 7 ...
Страница 575: ...548 Error Log Section 12 6 ...
Страница 589: ...562 Performance Appendix A ...
Страница 655: ...628 Control Bit Flag Timing Charts Appendix E ...
Страница 683: ...656 Origin Search Patterns Appendix F ...
Страница 685: ...658 Encoder Divider Rate and Rotation Speed for OMRON Servo Drivers Appendix G ...