omRon Standstill Monitoring Unit Sensor-less Monitoring of Standstill for Machines with Long Inertia • Standstill is monitored by the motor's back electromotive force (BEMF) signal. • Features a "Standard Configuration", allowing immediate use without sensitivity adjustment. • "User Configuration" also available for fine-tuning of sensitivity. • Detailed LED indications enable easy fault diagnosis. •Safety Category 4 (EN954-1), PLe(ISO13849-1), SIL 3 (IEC/EN 62061) certified. Be sure to read the "Precautions" on page 17. Model Number Structure Model Number Legend G9SX- □□□ III III - □□ 1 2 3 4 5 1. Functions 4. Output Configuration (Auxiliary Outputs) SM: Standstill Monitoring Unit 2: 2 outputs 5. Terminal block type RT: Screw terminals RC: Spring-cage terminals 2. Output Configuration (Safety Outputs) 0: None 3. Output Configuration (Safety standstill detection outputs) 3: 3 outputs Standstill Monitoring Unit

Ratings Power input *1. While safety standstill detection outputs are in the ON state, the following pulse signal is output continuously for output circuit diagnosis. When using the safety standstill detection 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-SM032-D: 0.2 A max. load current

* For G9SX-SM032-RT (with screw terminals)

Connect Z1 and Z2 to the motor lines respectively. Connect Z3 and Z4 to the motor lines respectively. Keep these outputs Open when NOT used. Keep these outputs Open when NOT used. Keep these outputs Open when NOT used. Connect the power supply plus to the A1 terminal. Connect the power supply minus to the A2 terminal. * For protecting the motor against short-circuit due to incorrect wiring, etc., apply overcurrent protective equipment: fuses, circuit-breaker, etc., with the ratings below. Rated voltage: Greater than standstill detection inputs (voltage supplied to the motor) Rated current: 3A...

Functions Configuration and Mode Use the "Operation Preset switch” on the back side to select either Standard Configuration or User Configuration. The selected configuration mode is enabled at power-on. Normally, please use Standard Configuration which is set as factory default. If the standstill determining time is found too long in the Standard Configuration mode, switch to User Configuration and adjust the standstill determining time. Standard Configuration When G9SX-SM detects that the standstill detection input voltage is 10 mV or less, it will turn on safety standstill detection outputs,...

G9SX-SM Operation Functions Standard Configuration "Standard Configuration" allows standstill detection without tuning sensitivity. Wire inputs and outputs Set the standstill determining time preset switch on the front side to 1 second and test the actual machine standstill timing t1 and t2 of ES indication (auxiliary output X1) turning on Set the operation preset switch on the back side to "STD" Timing t2 is ahead Turn the power ON Starting up under Standard Configuration Use under the "Standard Configuration" To u s e u n d e r t h e " S t a n d a r d Configuration," set the operation preset...

Fault Detection When the G9SX-SMD detects a fault, the ERR indicator and/or other indicators light up or blink to inform the user about the fault. Take actions based on the table shown below. After the action, turn the power on again. Dimensions and Terminal ArrangementStandstill Monitoring Unit G9SX-SM032-D Terminal arrangement ©(§) @@<S a)

Application Examples G9SX-SM032 (24 VDC) (3-phase Induction Motor) + G9SX-AD322-T15 (24 VDC) (Guard Lock Safety Door Switch, 2-channel Safety Limit Switch Inputs/Manual Reset) ** Feedback loop Lock release switch S5 Guard Lock Safety Door Switch S1: Guard Lock Safety Door Switch S2: Safety limit switch S3: Stop signal S4: Reset switch S5: Lock release switch KM1, KM2: Contactor M: 3-phase induction motor Timing Chart Guard opened → closed Guard closed →opened Guard Lock Safety Door Switch S1 Control circuit Safety limit switch S2 Reset switch S4 KM1, KM2 N.C. contact KM1, KM2 N.O. contact Note:...

G9SX-SM G9SX-SM032 (24 VDC) (3-phase Induction Motor) + G9SX-BC202 (24 VDC) (2-channel Emergency Stop Switch Inputs/Manual Reset) + G9SX-GS226-T15 (24 VDC) (Guard Lock Safety Door Switch + 2-channel Safety Limit Switch Inputs/Manual Reset) ** Reset switch Emergency Stop Switch Lock release switch S6 Guard Lock Safety-door Switch Control circuit Feedback loop Control circuit S1: Emergency Stop Switch S2: Reset switch S3: Guard Lock Safety Door Switch S4: Safety limit switch S5: Reset switch S6: Lock release switch KM1, KM2: Contactor M: 3-phase induction motor Note: 1. This circuit example is...

G9SX-SM Timing Chart Emergency Stop Switch S1 Reset switch S2 Guard opened → closed Guard closed → opened Guard Lock Safetydoor Switch S3 Guard can be opened. Safety Limit Switch S4 Logical AND connection input T41 Reset switch S5 KM1, KM2 NC contact KM1, KM2 NO contact Inverter operation (signal for motor) Inertial rotation condition Motor rotation Standstill detection input 1 voltage Standstill detection input 2 voltage Lock release signal Safety standstill detection output ES Lock release switch S6

G9SX-SM G9SX-SM032 (24 VDC) (3-phase Induction Motor with Star-Delta wiring) + G9SX-BC202 (24 VDC) (Guard Lock Safety Door Switch + 2-channel Safety Limit Switch inputs/Manual Reset) ** Lock release switch S5 S1: Guard lock Safety-door Switch S2: Safety Limit Switch S3: Stop signal S4: Reset switch S5: Lock release switch KM1, KM2: Contactor KM3, KM4: Contactor for star-delta starter M: 3-phase induction motor Guard Lock Safety Door Switch Timing Chart Guard Guard opened → closed Guard Lock Safety Door Switch S1 Safety limit switch S2 Control circuit Motor rotation X1 X2 Standstill detection...