Rack-and-Pinion System LAS Series

LAS4B500AS-4

Rack and Pinion Motor/Control Circuit

This product is currently no longer available for sale.

Product Classification	Product Name	List Price	Shipping Date
Rack and Pinion Motor / Control Circuit	LAS4B500AS-4	-	Discontinued Product (31.3.2020 discontinued)

Included

Rack and Pinion Motor, Control Circuit, Connector for I/O Signal, Operating Manual

Specifications

Other Specifications

General Specifications

Values are after rated operation at normal ambient temperature and humidity.

Item	Motor	Driver
Insulation Class	Class B (130 °C) [Recognized as Class A (105 °C) by UL/CSA Standards.]	-
Insulation Resistance	100 MΩ or more when a 500 VDC megger is applied between the following places: Between the case and excitation sensor coil Between case and electromagnetic brake winding (only for types with an electromagnetic brake)	100 MΩ or more when a 500 VDC megger is applied between the following places: Between case and power supply input terminal Between signal I/O terminal and power supply input terminal
Dielectric Strength	Sufficient to withstand the following for 1 minute: Between the case and excitation sensor coil 1.5 kV 50 Hz or 60 Hz Between case and electromagnetic brake winding 1.0 kV 50 Hz or 60 Hz (only for types with an electromagnetic brake)	Sufficient to withstand the following for 1 minute: Between the case and excitation sensor coil 1.5 kV 50 Hz or 60 Hz Between signal I/O terminal and power supply input terminal 2.3 kV (3.0 kV) 50 Hz or 60 Hz (Only for types with an electromagnetic brake) Values in parentheses are for 200-230 V input
Operating Ambient Temperature	0~+50 °C (non-freezing)
Operating Ambient Humidity	85 % max. (Non-condensing)

Do not measure insulation resistance or perform the dielectric strength test while the rack and pinion motor and the driver are connected.

Circuit Specifications

Product Name		LSD20A-W	LSD20B-W	LSD20A-S	LSD20B-S
Power Supply Input	Voltage	Single-phase 100/115 VAC, Single-phase 200/230 VAC -15~+10 %		Three-phase 200-230 VAC -15~+10 %.
	Frequency	50/60 Hz
	Current	3.2 A (100 V) 3.7 A (200 V)	4.1 A (100 V) 4.5 A (200 V)	2.0 A	2.4 A
Maximum Input Pulse Frequency		250 kHz (at 50 % duty)
Input Signals	Input Mode	Photocoupler Input, Input Resistance: 220 Ω, Input current 7~20 mA
	DIR.-A pulse	DIR.-A direction operation command pulse signal (pulse input when 1-pulse input mode) Pulse width 2 μs min., rise/fall time 2 μs max. (Negative logic pulse input)
	DIR.-B pulse	DIR.-B direction operation command pulse signal (operation direction switch input when 1-pulse input mode) Pulse width 2 μs min., rise/fall time 2 μs max. (Negative logic pulse input)
	Alarm Clear	Input when protective function is activated to clear the alarm status.
	All windings off	When the photocoupler is ON, output current to the rack and pinion motor is turned OFF. When the photocoupler is OFF, the current is supplied to the rack and pinion motor.
	Resolution Select	When the photocoupler ON, the resolution is 10 times the resolution at power on. When the photocoupler is OFF, the resolution is the resolution at power on.
Output Signals	Output Mode	Photocoupler and Open-collector output　 External use condition 30 VDC max, 15 mA max (Positioning completion, Alarm) Transistor and Open-collector output External use condition 30 VDC max, 15 mA max (Timing, Feedback pulse phase A and B) Line driver output 26C31 equivalent (Timing, Feedback pulse phase A and B)
	Timing	1-pulse outputs each time the rack moves the value shown in Table 1. (Photocoupler: ON) Available in 500 Hz max. in maximum speed input pulse frequency.
	Alarm	Outputs when the protective function is activated. (Photocoupler: OFF) Alarm outputs (Blinking red LED), while at the same time, the rack and pinion motor comes to a coasting stop.
	Positioning Completion	Outputs on positioning completion. (Photocoupler: ON) Output is within ±0.05 mm of the command position at a pulse speed of 500 Hz max.
	phases A and B Pulse Output	Outputs at the resolution when the driver is powered on. The phase difference between phase A and phase B is 90˚ in electrical angle. There is a time lag of up to 1 ms relative to the actual motion of the rack and pinion motor. Use to confirm the stop position.
Protective Function		Overheat protection, overload protection, overvoltage protection, speed error protection, overcurrent protection, overspeed protection EEPROM data error, sensor error, system error
Mass		0.8 kg

Table 1

TIM. Output Signal Travel Amount

Product Name	LAS2□90	LAS2□500	LAS4□40	LAS4□500
Travel amount [mm]	37.364 × 10^-3	199.948× 10^-3	14.835 × 10^-3	200.176 × 10^-3

Either F or B indicating the rack moving direction is specified where the box □ is located in the product name.

Maximum Radial Load

Stroke mm	Maximum Radial Load N
Stroke mm	LAS2□90	LAS2□500	LAS4□40	LAS4□500
100	25	25^*	120	60^*
200	20	20^*	90	40^*
300	10	10^*	70	30^*
400	10	10^*	60	25^*
500	7	7^*	50	20^*
600	-	-	40	15^*
700	-	-	40	10^*
800	-	-	25	7^*
900	-		20	-
1000	-		15	-

Either F or B indicating the rack moving direction is specified where the box □ is located in the product name.

*Keep the operating speeds up to 90 mm/s, do not apply the radial load for use over 90 mm/s.
Install an external guide when using.

Rack Permissible Rotational Torque (Moment)

The rotational torque applied to the rack should be less than the value shown in the table below.

Rack and Pinion Motor Product Name	Rack Permissible Rotational Torque (Moment)
LAS2B(F)	0.3 N·m max.
LAS4B (F)	0.5 N·m max.

Be sure to keep rotational torque below the permissible value. If too much rotational torque is applied, the abrasion of rack bushings will be sped up.

Repetitive Positioning Accuracy (Reference value)

The graph on the figure below shows the actual measurement value at maximum transportable mass. Varies depending on the load, driving conditions, and mounting direction.

System Configuration

NORTH AMERICA

EUROPE

ASIA