G9SX-LM

Low-speed Monitoring Unit

G9SX-LM

Low-speed Monitoring Function Ensures Safety for Maintenance Work

* Information in this page is a reference that you created on the basis of information in the product catalog before the end of production, may be different from the current situation, such as goods for / supported standards options / price / features of the product. Before using, please check the compatibility and safety system.

last update: December 11, 2017

Ratings

Power input

Model	G9SX-LM224-[]	G9SX-EX401-[]
Rated supply voltage	24 VDC
Operating voltage range	-15% to +10% of rated supply voltage
Power consumption *	5 W max.	2 W max.

* Power consumption of loads not included.

Inputs

Model	G9SX-LM224-[]
Safety input Enabling input Feedback/reset input Mode selector input	Operating voltage: 20.4 VDC to 26.4 VDC Internal impedance: Approx. 2.8 kΩ *
Rotation detection input	Operating voltage: 20.4 VDC to 26.4 VDC Internal impedance: Approx. 2.8 kΩ * Frequency input range: 1 kHz max.

* Provide a current equal to or higher than that of the minimum applicable load of the connected input control device.

Outputs

Model	G9SX-LM224-[]
*Safety instantaneous output 1**	Source output (PNP compatible) Load current: 0.8 A DC max. * 2
*Safety speed detection output 1**	Source output (PNP compatible) Load current: 0.3 A DC max.
Auxiliary output	Source output (PNP compatible) Load current: 100 mA DC max.

*1. While safety instantaneous outputs and safety speed detection outputs are in the ON state, the following pulse signal
is output continuously for output circuit diagnosis.
When using these safety outputs as input signals to control devices (i.e. Programmable Controllers), consider the
pulse signal shown below.

*2. The following derating is required when Units are mounted side-by-side.
G9SX-LM[]: 0.4 A DC max. load current

Expansion Unit

Model	G9SX-EX-[]
Rated load	250 VAC, 3A /30 VDC, 3A (resistive load)
Rated carry current	3A
Maximum switching voltage	250 VAC, 125 VDC

Characteristics

Model		G9SX-LM224	G9SX-EX401
Over-voltage category (IEC/EN60664-1)		II	II (Safety relay outputs 13 to 43 and 14 to 44: III)
Operating time (OFF to ON state) 1 2 *5		50 ms max. (Safety input: ON, Enabling input: ON) 100 ms max. (Logical AND connection input: ON)	30 ms max. *6
Response time (ON to OFF state) 1 5		15 ms max.	10 ms max. *6
Allowable time for switching Mode selector inputs *3		450 ms max.	--
Mode selector input response time *4		50 ms max.	--
ON-state residual voltage		3.0 V max. (safety instantaneous outputs, safety speed detection outputs, and auxiliary outputs)
OFF-state leakage current		0.1 mA max. (safety instantaneous outputs, safety speed detection outputs, and auxiliary outputs)
Maximum cable length for logical connection inputs and Safety inputs		100 m max. (External connection impedance: 100 Ω max. and 10 nF max.)
Reset input time		100 ms min.
Accuracy tolerance of low speed detection frequency		Within minus 10% of the set value	--
Insulation resistance	Between logical AND connection terminals, and power supply input terminals and other input and output terminals connected together	20 MΩ min., 250 VDC megger	--
Insulation resistance	Between all terminals connected together and DIN rail	20 MΩ min., 250 VDC megger	100 MΩ min., 500 VDC megger
Dielectric strength	Between logical AND connection terminals, and power supply input terminals and other input and output terminals connected together	500 VAC for 1 min	--
	Between all terminals connected together and DIN rail	500 VAC for 1 min	1,200 VAC for 1 min
	Between different poles of outputs	--	1,200 VAC for 1 min
	Between safety relay outputs connected together and other terminals connected together	--	2,200 VAC for 1 min
Vibration resistance		Frequency: 10 to 55 to 10 Hz, 0.375-mm single amplitude (0.75-mm double amplitude)
Mechanical shock resistance	Destruction	300 m/s²
Mechanical shock resistance	Malfunction	100 m/s²
Durability	Electrical	--	100,000 cycles min. (rated load, switching frequency: 1,800 cycles/hour)
Durability	Mechanical	--	5,000,000 cycles min. (switching frequency: 7,200 cycles/hour)
Ambient temperature		-10 to 55°C (no icing or condensation)
Ambient humidity		25 % to 85 %
*Terminal tightening torque 7**		0.6 Nm
Weight		Approx. 240 g	Approx. 165 g

*1. When two or more Units are connected by logical AND, the operating time and response time are the sum total of the
operating times and response times, respectively, of all the Units connected by logical AND.
*2. Represents the time required to turn ON safety instantaneous outputs when required conditions are met.
*3. Represents the time allowed for switching mode selector inputs. If it exceeds 450 ms, G9SX-LM[] will detect it as az

failure.
*4. Represents the time required for safety inputs/enabling inputs to be switched following a switch of mode selector
inputs.
*5. Operating time and response time do not include the frequency detection time and the time affected by the
characteristics of proximity sensors.
For response performance of the entire system, see "(5) Response performance regarding speed detection".

*6. The value of the operating time and response time of the connected Low-speed Monitoring Unit is not included.
*7. For the G9SX-[]-RT (with screw terminals)

Logical AND Connection

Model	G9SX-LM224	G9SX-EX401-[]
Number of Units connected per logical AND output	4 units max.	--
Total number of Units connected by logical AND *	20 units max.	--
Number of Units connected in series by logical AND	5 units max.	--
Max. number of Expansion Units connected	--	5 units max.
Maximum cable length for logical AND input	100 m max.	--

* The number of G9SX-EX401-[] Expansion Units not included.

last update: December 11, 2017

Product Category

Safety Components
- Safety Units / Safety Relay Units
  - Discontinued
    - G9SX-LM

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