IDEC FT1A Series Data Sheet

New

Generation

PLC

FT1A Series - 24 I/O

Key Features

•Available in 100-240 VAC and 24 VDC power

•Available with/without embedded LCD

•10 Amp Relay contacts

•USB Mini-B Programming Port

•Embedded 4-pt analog inputs (0-10VDC, 10-bit, DC power)

•Integrated 4 x 100KHz high-speed counter

•Embedded Ethernet port

•Supports Modbus TCP and RTU

•Optional RS232C/RS485 adapter

General Specifications

Part Numbers	FT1A-H24RA		FT1A-B24RA	FT1A-H24RC		FT1A-B24RC
Appearance

LCD Screen	Yes		N/A	Yes		N/A

Operating Temperature			0 to +55°C (operating ambient temperature)

Storage Temperature			–25 to +70°C (no freezing)

Rated Power Voltage		24V DC		100 to 240V AC

Allowable Voltage Range	20.4 to 28.8V DC (Including ripple voltage)			85 to 264V AC

Rated Power Frequency		–		50/60Hz (47 to 63Hz)

Maximum Power Consumption		4.8W		41VA

Weight	Approx. 310g			Approx. 400g

Function Specifications
Part Numbers				FT1A-H24RA, B24RA			FT1A-H24RC, B24RC
Part Numbers				FT1A-H24RA, B24RA			FT1A-H24RC, B24RC
Program Capacity Note 1					47,400 bytes (11,850 steps)
	Points				16

	Digital Input (Terminal No.)			12 (I0 to I7, I10 to I13)			16 (I0 to I7, I10 to I17)

	Shared Analog Input (Terminal No.)			4 (I14 to I17)			–
Input
Input	Output Points				8

	10A Relay Output (Terminal No.)					4 (Q0 to Q3)

	2A Relay Output (Terminal No.)					4 (Q4 to Q7)

	Transistor Output (Terminal No.)					–

User Program Storage				Flash ROM (10,000 rewriting life)

	RAM			Backup data: Internal relay, shift register, counter current value,
	RAM			data register Note 2, clock data (year, month, and day)
				data register Note 2, clock data (year, month, and day)
	Backup Duration			Approx. 30 days (typical) at 25°C after backup battery fully charge

Backup Function	Battery					Lithium
	Charging Time			Approx. 15 hours for charging from 0% to 90% of full charge

	Battery Life					5 years

	Replaceability					Not possible

Clock Function Note 3				Clock accuracy: ±30 sec/month (typical) at 25°C
Control System					Stored program system

Specifications con’t on next page

Specifications con’t

Part Numbers		FT1A-H24RA, B24RA		FT1A-H24RC, B24RC
Instruction Words	Basic Instructions		42

	Advanced Instructions		107
	Advanced Instructions		107

Processing Time	Basic Instruction		0.95ms (1000 steps)

	END Processing		640μs
	END Processing		640μs

Internal Relay			1024

Shift Register			128

Data Register			2,000

Counter (adding, reversible)			200

Timer (1-sec, 100ms,10ms, 1ms)			200

Input Filter		Without filter, 3 to 15ms (selectable in increments of 1ms)

Catch Input/Interrupt Input	Input Points		6

Self-diagnostic Function		Keep data, Power failure, Clock error, Watchdog timer, Timer/counter preset value change error,
Self-diagnostic Function		User program syntax, User program execution, System error, Memory cartridge transfer error


	Points	Total 6 points		–

High-speed Counter	Maximum Counter Frequency	Single/two-phase selectable: 100kHz (2 points) , Single-phase: 100kHz (4 points)

	Counting Range		0 to 4,294,967,295 (32 bit)
	Counting Range		0 to 4,294,967,295 (32 bit)

	Operation Mode	Rotary encoder mode and adding counter mode

Pulse Output (Maximum	Points		–
frequency: 100kHz)	Points		–
frequency: 100kHz)

Pulse Output (Maximum	Points		–
frequency: 5kHz)	Points		–
frequency: 5kHz)

	Points (Terminal No.)	4 (I14 to I17)		–

Analog Voltage Input	Input voltage Range		0 to 10V DC

	Digital Resolution		0 to 1000

	Points		1

USB Port	USB Standard		USB 2.0

	Connector		Mini-B type

Expansion Communication Ports			1

Ethernet Port			1

Memory Cartridge Connectors			1

SD Memory Card Slots			–

1.Step is equivalent to 4 bytes.

2.Among data registers D0 to D1999, only D0 to D999 are backed up.

3.Set the calendar/clock using the clock function in WindLDR.

Dimensions (mm)

Mounting Hole Layout

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