3 Specifications
3.2 Power Supply Specification
23
FX
3U
-20SSC-H Positioning Block User's Manual
1
Int
roduct
ion
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Sy
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conf
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Exam
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C
onnect
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Ins
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Wi
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Me
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and da
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Befor
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M
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Posit
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Table O
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3.2
Power Supply Specification
3.3
Performance Specification
*1.
An FX
2NC
-CNV-IF or FX
3UC
-1PS-5V is necessary to connect the 20SSC-H with the FX
3UC
PLC.
*2.
The MR-J3W-
B can be connected within the functional range of the MR-J3-
B.
*3.
The MR-J3-
BS can be connected to the 20SSC-H later than Ver.1.40.
However, it does not support the fully closed loop system.
Item
Specification
External power
supply
Power supply voltage
24V DC +20% -15% Ripple (p-p) within 5%
Permitted instantaneous
power failure time
Operation continues when the instantaneous power failure is shorter than 5ms.
Powerconsumption
5W (220mA /24V DC)
Power fuse
1A
Internal power
supply
PLC power supply
100mA /5V DC
Item
Specification
Number of control axes
2 axes
Backup
Positioning parameters, servo parameters, and table information can be saved to flash memory
Write count: Maximum 100,000 times
Applicable PLC
FX
3U
/FX
3UC
*1
Series PLC
•
A maximum of 8 units/blocks can be connected with the FX
3U
/FX
3UC
(D, DS, DSS) Series
PLC.
•
A maximum of 7 units/blocks can be connected with the FX
3UC
-32MT-LT(-2) PLC.
No. of occupied I/O points
8 points (input or output, whichever may be counted)
Connectable servo amplifier
MELSERVO-J3-
B (Maximum 2 amplifiers can be connected),
MELSERVO-J3W-
B
*2
(One amplifier can be connected),
MELSERVO-J3-
BS
*3
(Maximum 2 amplifiers can be connected)
Standard cord length
: Station to station maximum 20m (65’7")
Long distance cord length
: Station to station maximum 50m (164’)
Servo bus
SSCNET III
Scan cycle
1.77ms
Control input
Interrupt input
: 2 inputs (INT0 and INT1) per axis
DOG
: 1 input per input axis
START input
: 1 input per axis
Manual pulse generator : 1 input per axis (A/B-phase)
Parameter
Positioning parameter
: 27 types
Servo parameter
: 61 types
Control data
20 types
Monitor data
35 types
Positioning program
Created by sequence programs (using FROM/TO instruction, etc.)
Direct operation (1 for X and Y axes respectively)
Table operation (300 tables for X, Y, and XY axes respectively)
Positioning
Method
Increment/Absolute
Unit
PLS,
µ
m, 10
-4
inch, mdeg
Unit magnification
1, 10, 100, and 1000-fold
Positioning range
-2,147,483,648 to 2,147,483,647 PLS
Speed command
Hz, cm/min, inch/min, 10deg/min
Acceleration/
deceleration
process
Trapezoidal acceleration/deceleration, S-pattern acceleration/deceleration: 1 to 5,000ms
Only trapezoidal acceleration/deceleration is available for interpolation
Starting time
1.6ms or less
Interpolation
function
2-axes linear interpolation, 2-axes circular interpolation