HEAD OFFICE
: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
HIMEJI WORKS : 840, CHIYODA CHO, HIMEJI, JAPAN
This manual confers no industrial property rights or any rights of any other kind, nor does it
confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any
problems involving industrial property rights which may occur as a result of using the contents
noted in this manual.
4.8 Procedure of battery exchange
1) The power supply of FX
2N
-20GM is turned off.
2) Remove side cover from the FX
2N
-20GM.
3) Remove battery from holder-disconnect and replace. (This must be carried out within 30 sec if the cur-
rent data held in the FX
2N
-20GM’s RAM is to be saved.)
4) Refit battery and cover.
FX
2NC
-32BL
lithium battery
5. Specification
5.1 Power supply specification
5.2 General specification
5.3 Performance specification
Item
Contents
Power supply
24V DC -15%, +10%
Allowance power
failure time
The operation is continued to the momentary power failure is 5ms or less.
Power consumption
10W
Fuse
125V AC 1A
Item
Contents
Ambient temperature
0 to 55
°
C (operation). -20 to 70
°
C (storage).
Surrounding humidity 35 to 85 %, No condensation (operation). 35 to 90 % (storage).
Vibration resistance
Conforms to JIS C0040. 10 to 57Hz: Half 0.035mm amplitude,
57 to 150Hz: 4.9 m/s
2
Acceleration
Sweep count for X, Y, Z: 10 times (80 min in each direction).
Shock resistance
Conforms to JIS C0041. 147m/s
2
acceleration, Action time: 11ms.
3 times in each direction X, Y, Z.
Noise immunity
1,000Vp-p, 1
µ
s. 30 to 100Hz, tested by noise simulator.
Dielectric withstand
voltage
500V AC > 1 min, tested between all points, terminal and ground.
Insulation resistance
5M
Ω
> 500V DC, tested between all points, terminal and ground
Ground Class
3
(100
Ω
or less)
Use atmosphere
Ambient conditions to be free of corrosive gases. Dust should be minimal.
Item
Contents
Number of control
axes
Two axes (two axes or two independent axes simultaneously)
Interpolation function
There is a straight line interpolation and a circular arc interpolation (two axes
simultaneously).
Application PLC
Bus connection with FX
2N
and the FX
2NC
series PLC. The number of I/O points
occuupied is 8 points. An FX
2NC
-CNV-IF is necessary for the connection with
the FX
2NC
series PLC.
Program memory
Built-in RAM, FX
2NC
-EEPROM-16 (optional memory board) : 7.8k steps.
Memory board with clock function cannot be used.
Battery
With built-in FX
2NC
-32BL type lithium battery.
Longevity and about three years (The guaranteed term is one year).
Positioning unit
Command units: mm, deg, inch, pls, (relativity/absolutely)
Max command value ± 999,999 (32 bits when indirectly specifying)
Accumulation
address
-2,147,483,648 to 2,147,483,647pulses
Speed instruction
200kHz max., 153,000cm/min (200kHz or less). Automatic trapezoidal pattern
acceleration/deceleration (The interpolation drive is 100kHz or less).
Zero return
Manual operation or automatic operation. The DOG type machine zero return
(The DOG search function is provided). An automatic electric zero return is
possible by the electric starting point setting.
* 1:When the file register is used, it is necessary to set PARA.101.
5.4 Input specifications
*1:The selection of general purpose inputs, manual pulse generator inputs or interrupt inputs in the
parameter settings automatically adjusts the input filters.
Absolute position
detection
The absolute position detection is possible with MR-J2 and the MR-H type
servo motor with the ABS detection function.
Control inputs
Operation system: FWD (manual forwarding ), RVS (manual reversal)
ZRN (machine zero return), START (automatic start), STOP,
Manual pulse generator (2kHz max), Single-step operation input
(Depends upon the parameter setting).
Mechanical system: DOG (near-point signal),
LSF (forward rotation limit), LSR (reverse rotation limit),
Interrupt: 4 points
Servo system: SVRDY (servo ready), SVEND (servo end),
PG0 (zero-point signal)
General purpose: The main body has X0 to X7. X10 to X67 can be input by
using the extension block. (max I/O point: 48 points)
Control outputs
Servo system: FP (forward rotation pulse). RP (reverse rotation pulse),
CLR (counter clear).
General purpose: The main body has Y0 to Y7. Y10 to Y67 can be output by
using the extension block. (max I/O point: 48 points)
Control method
Program method: The program is written in the FX
2N
-20GM by a special
programming tool, and the positioning control is done.
Program No.
O00 to O99 (two axes simultaneously), Ox00 to Ox99 and Oy00 to Oy99 (two
independent axes), O100 (sub-task program)
Instruc-
tion
Positioning
Cod No. system (used with instruction cods)-19 types.
Sequence
LD, LDI, AND, ANI, OR, ORI, ANB, ORB, SET, RST and NOP.
Application
FNC number system-30 types.
Parameter
System setting-12 types. Positioning-27 types. I/O Control-19 types.
Settings in the program can be changed by using a special data register
(The system settings are excluded)
m cods
m00: Program stop (WAIT), m02: (End of positioning program), m01 and m03
to m99 can be arbitrarily used. (AFTER mode and WITH mode)
m100 (WAIT) and m102 (END) are used by a sub-task.
Device
Inputs: X0 to X67, X372 to X377 Outputs:Y0 to Y67,
Supplementary relay: M0 to M99 (general purpose), M100 to M511 (general
purpose and battery backup area), M9000 to M9175 (special), Pointer:P0 to
P255, Data register: D0 to D99 (general purpose), D100 to D3999 (general
purpose and battery backup area) (16 bits), D4000 to D6999 (file register and
battery backup area)
*1
D9000 to D9599 (special)
Index: V0 to V7 (16 bits), Z0 to Z7 (32 bits)
Self-diagnosis
"Parameter error", "Program error", and "External error" can be diagnosed by
the display and the error code.
Item
Input from general-purpose
equipment
Input from drive unit
Input
signal
name
Group 1
START, STOP, ZRN, FWD, RVS, LSF, LSR
SVRDY, SVEND
Group 2
DOG
PG0
Group 3
General-purpose input X00 to X07
-
Group 4
Manual pulse generator, interruption input
-
Circuit insulation
By photocoupler
By photocoupler
Operation indication
LED is lit while input is ON
LED is lit while input is ON
Signal voltage
24V DC ± 10% (internal power supply)
5 to 24V DC ± 10%
Input current
7mA/24V DC
7mA/24V DC (PG0 11.5mA/24V DC)
Input ON current
4.5mA or more
0.7mA or more (PG0 1.5mA or more)
Input OFF current
1.5mA or less
0.3mA or less (PG0 0.5mA or less)
Signal format
Contact input or NPN open collector transistor input.
Responset
ime
Group 1
Approx. 3msec
Approx. 3msec
Group 2
Approx. 0.5msec
Approx. 16
µ
s
Group 3
Approx. 3msec
*1
-
Group 4
Approx. 0.1ms
*1
-
Turning ON rate of
I/O simultaneously
50% or less
Item
Contents
5.5 Output specification
Item
General-purpose output
Output to drive unit
Signal name
Y00 to Y07
FP, RP, CLR
Circuit isolation
By photocoupler
By photocoupler
Operation indication
LED is lit while output is ON
LED is lit while output is ON
External power
supply
5 to 24V DC ± 10%
5 to 24V DC ± 10%
Load current
50mA or less
20mA or less
Open circuit leak
current
0.1mA/24V DC or less
0.1mA/24V DC or less
Output ON voltage
0.5V max
0.5V max (CLR is 1.5V max.)
Response time
0.2ms max. for both OFF
→
→
→
→
ON and
ON
→
→
→
→
OFF.
Pulse output FP RP is 200kHz max.
Pulse output width of the CLR signal:
Approx. 20msec.
Turning ON rate of
I/O simultaneously
50% or less
Guidelines for the safety of the user and protection of the FX
2N
-20GM
POSITIONING CONTROLLER
•
This manual has been written to be used by trained and competent personnel. This is defined
by the European directives for machinery, low voltage and EMC.
•
If in doubt at any stage during the installation of the FX
2N
-20GM always consult a professional
electrical engineer who is qualified and trained to the local and national standards. If in doubt
about the operation or use of the FX
2N
-20GM please consult the nearest Mitsubishi Electric
distributor.
•
Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential
damage that may arise as a result of the installation or use of this equipment.
•
All examples and diagrams shown in this manual are intended only as an aid to understand-
ing the text, not to guarantee operation. Mitsubishi Electric will accept no responsibility for
actual use of the product based on these illustrative examples.
•
Owing to the very great variety in possible application of this equipment, you must satisfy
yourself as to its suitability for your specific application.
Manual number : JY992D77601
Manual revision : C
Date
: November 2005
JY992D77601C
Effective Nov. 2005
Specifications are subject to change without notice.
