FX-1HC
SPECIAL FUNCTION BLOCK
USER'S GUIDE
JY992D53001A
This manual contains text, diagrams and explanations which will guide the reader in the correct installation
and operation of the FX-1HC special function block and should be read and understood before attempting
to install or use the unit.
Further information can be found in the FX PROGRAMMING MANUAL and FX SERIES HARDWARE
MANUAL.
1
●
The FX-1HC hardware high-speed counter block is 2-phase 50 kHz high-speed counter. It is a special
function block for the FX, FX
2C series PC. The FX-1HC counts at a higher speed than the built-in high-
INTRODUCTION
speed counter of the PC (2-phase 2 kHz, 1-phase 10 kHz) and performs comparisons and outputs
directly.
●
Various counter modes, such as 1-phase or 2-phase, 16-bit or 32-bit modes, can be selected using
commands from the PC. Allow the FX-1HC unit to run only after setting these mode parameters.
●
The source of your input signal should be a 1 or 2 phase encoder. A 5V, 12V, or 24V power source can
be used. An initial value setting command input (PRESET) and a count prohibit command input (DISABLE)
are also available.
●
The FX-1HC has two output. When the counter value coincides with an output compare value, the
appropriate output is set ON. A PNP and an NPN output transistor is provided for both outputs to allow
either sink or source connection methods.
●
FX PCs versions 2.0 or later (those with serial number 13XXXX or larger) are required as these units have
the TO/FROM applied instructions in their instruction set. Data transfer between the FX-1HC and the FX PC
is by buffer memory exchange. There are 32 buffer memories (each of 16 bits) in the FX-1HC.
●
The FX-1HC occupies 8 points of I/O on the FX or FX2C expansion bus. The 8 points can be allocated
from either inputs or outputs.
1.1 External dimensions
weight : Approx 0.5 kg (1.1 lbs) Dimensions : mm (inches)
Accessories : Self-adhesive labels special block number identification.
567
4
3
2
1
DISABLE terminal (M3.5 (0.14) screws)
YH•YS terminal (M3.5 (0.14) screws)
Extension cable and connector
POWER LED
φA,φB terminal (M3.5 (0.14) screws)
PRESET terminal (M3.5 (0.14) screws)
UP LED
φA LED
φB LED
8
12
9
10
11
125 (4.92)
140 (5.51)
13
15
16
63 (2.48)
73 (2.87) 14
17
10 (0.39)
95 (3.74)
DN (Down) LED
PRESET LED
Mounting hole 2- φ5.5 (0.22)
Attachment groove for 3.5 (1.38) wide DIN rail
DIN rail clip
DIS (DISABLE) LED
YH LED
YS LED
2
Encoder
Phase A
Phase B
Phase Z
+24V COM
NPN output encoders can also be used.
Shielding wire
OUT
COM
E
OUT
COM
E
OUT
COM
E
START
φA
φB
PRESET
DISABLE
Shielding wire
Shielding wire
Shielding wire
Wiring
φA24
φA12
φA5
COMA
φB24
φB12
φB5
COMB
XP24
COMP
XD24
COMD
12 to 24V inputtable
XP5
XD5
3.3k
1.5k
0.5k
0.1k
1.5k
0.5k
0.1k
12 to 24V
inputtable
DC24V+
*1
YHP
*1
YHN
DC24-
DC24V+
*1
YSP
*1
YSN
DC24-
*2
+24V 0V
External power source
DC5V, 12V, 24V
〈〈
〈Using the solderless termination
〈〈
6.8 mm
(0.27 inches)
or less
6.8 mm
(0.27 inches)
or less
Class 3
grounding
(<100 Ω)
For
M3.5
(0.14
inches
PC
●
●
)
●
Extension
〉〉
〉
〉〉
SG
FX-1HC
cable
*1. Do not connect YHP and
YHN, or YSP and YSN
together.
*2. Connect SG and the gro-
unded terminal at the PC
side as required.
External power source
DC12 to 24V
+24V0V
Use crimp terminals of the dimensions specified in the left figure.
Secure the terminals using a tightening torque of 0.5 to 0.8 N•m (5
to 8 kg•cm).
Wire only to the module terminals discussed in this manual. Leave
all thers vacant.
3
SPECIFICATIONS
3.1 Environmental specifications
The environmental specifications for the FX-1HC are the same as those for your FX series PC.
3.2 Performance specifications
Input signal
Counting
specifi-
cation
Item
Signal level
MAX. frequency
Pulse shape
Format
Range
Comparison Type
1-phase input
1 input 2 inputs
5V, 12V, or 24V ±10% (selected by terminal connection) 7mA
50 kHz
t1 t1
t2
t3
t3
Automatic UP/DOWN (however, when on 1 phase 1 input mode, UP/DOWN is
determined by a PC command or an input terminal.)
When 32-bit is specified: -2,147,483,648 to +2,147,483,647
When 16-bit is specified: 0 to 65,535 (upper limit can be user specified)
Each output is set when the present value of the counter matches with the compare
value (which is transferred from the PC), and is switched OFF by a reset command
from the PC.
: Direct output processed by hardware.
YH
YS
: Software processed output with worst delay time of 300µs.
(Therefore, when the input frequency is 50 kHz, there is a worst case delay of 15 input
pulses.)
t2
1 edge count
t1 : Rise/fall time is 3µs or less
t2 : ON/OFF pulse duration 10µs or more
t3 : Phase difference between phase A and phase B
is 3.5µs or more
PRESET (Z phase) input 100µs or more
DISABLE (count prohibit) input 100µs or more
2-phase input
4 edge count2 edge count
25 kHz 12.5 kHz
YHN
Output
signal
Power from base
Types of outputs
Output capacity
I/O occupation
YHP
YSN
YSP
DC 12V to 24V 0.5A
8 point taken from the FX, FX2C expansion bus (can be either inputs or outputs)
DC 5V 70mA
: NPN transistor output for YH output
: PNP transistor output for YH output
: NPN transistor output for YH output
: PNP transistor output for YH output
PNP
+
Output
NPN
Output
–
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