Schmersal 101209104 AZM 161 Z ST1-AS RA – AS-Interface Safety Solenoid Interlock
The Schmersal 101209104 (AZM 161 Z ST1-AS RA) is an electromechanical solenoid interlock from the Schmersal AZM 161 series with integrated AS-Interface Safety at Work. Both the AS-i data and the solenoid supply run over the yellow AS-i cable through one central M12 connector. No separate auxiliary power supply is needed.
This version has:
- Power to lock: the guard locks only while the solenoid is energised.
- Holding force: 2,000 N.
- Increased latching force: 30 N.
- Manual release: with M5 triangular key, for maintenance and installation.
- Enclosure: double-insulated, IP67 thermoplastic.
- Safety rating: up to PL d / SIL 2 with fault exclusion.
What the Part Number Means
- 101209104 – Schmersal item (order) number
- AZM 161 – AZM 161 series solenoid interlock
- Z ST1 – Connector version: M12 plug, 4-pole, A-coded, centre position
- AS – Integrated AS-Interface (Safety at Work)
- RA – Option codes for this variant: increased latching force (30 N), power to lock
Key Features
- Solenoid powered via AS-Interface: one cable, no separate 24 V auxiliary supply
- Integrated AS-i Safety at Work: safety slave, AS-i V2.1, profile S-7.B.F.E
- Diagnostics over AS-i: parameter bits report the following:
- actuator detected
- solenoid locked
- solenoid voltage OK
- locking error
- Power to lock: the guard locks only while the solenoid is energised
- Holding force: FZh 2,000 N (Fmax 2,600 N)
- Increased latching force: 30 N
- Manual release: M5 triangular key (accessory)
- Safety rating: up to PL d / Category 3 / SIL 2 with fault exclusion
- Mechanical life: minimum 1,000,000 operations
Key Specifications (Schmersal 101209104 Data)
AS-Interface Data
- AS-i specification: safety slave, AS-i V2.1
- AS-i profile: S-7.B.F.E (IO code 0x7, ID code 0xB, ID1 0xF, ID2 0xE)
- Slave address: 0 (preset); changeable via the AS-i master or a hand-held programming device
- AS-i rated operating voltage: 26.5–31.6 V DC, with reverse polarity protection
- AS-i current consumption: max. 250 mA (including solenoid)
- Inputs:
- Channel 1: DI 0 / DI 1, dynamic code transmission
- Channel 2: DI 2 / DI 3, dynamic code transmission
- Outputs:
- DO 0: solenoid control
- DO 1–DO 3: no function
- Parameter bits:
- P0: actuator detected
- P1: solenoid interlock locked
- P2: solenoid voltage within tolerance
- P3: error, locking/unlocking blocked
Mechanical Data
- Interlocking principle: power to lock, with monitored guard locking
- Manual release: M5 triangular key (accessory), for maintenance and installation
- Holding force FZh (EN ISO 14119): 2,000 N
- Holding force Fmax: 2,600 N
- Latching force: 30 N
- Actuating play in direction of actuation: 5.5 mm
- Max. actuating speed: 2 m/s
- Actuating directions: 3
- Mechanical life: min. 1,000,000 operations
- Reaction time: max. 100 ms
- Max. switching frequency: 1,000/h
- Coding level (EN ISO 14119): low
- Mounting: 3 × M6 screws
Safety Classification
- Standards: EN ISO 13849-1, EN IEC 61508
- Standard classification: PL c, Category 1, PFH 1.14 × 10⁻⁶/h, SIL 1
- With fault exclusion for the mechanism: PL d, Category 3, PFH 1.01 × 10⁻⁷/h, SIL 2
- PFH figures are valid up to 100,000 switching cycles per year
- Guard locking function: PL e (see operating instructions)
- Mission time: 20 years
Connection
- Connector: M12, 4-pole, A-coded, centre position
- Pin assignment:
- Pin 1: AS-i +
- Pin 2: n.c.
- Pin 3: AS-i −
- Pin 4: n.c.
LED Indication
- Yellow LED, channel 1: AS-i SaW bit 0.1
- Yellow LED, channel 2: AS-i SaW bit 2.3
- Green/red AS-i duo LED: shows supply voltage, communication error, slave address 0 and periphery error
General Data
- Enclosure: glass-fibre reinforced thermoplastic, self-extinguishing
- Degree of protection: IP67
- Protection class: II (double-insulated)
- Ambient temperature: -25 °C to +60 °C
- Storage temperature: -25 °C to +85 °C
- Vibration: 10–150 Hz, amplitude 0.35 mm
- Shock: 30 g / 11 ms
- Rated insulation voltage Ui: 32 V DC
- Rated impulse withstand voltage Uimp: 0.8 kV
- Max. installation altitude: 2,000 m
- Dimensions: 130 × 90 × 30 mm
- Weight: approx. 465 g (gross)
Approvals and Standards
- AS-i, cULus
- EN IEC 60947-5-1, EN IEC 61508, EN IEC 62026-2, EN ISO 13849-1
Typical Applications
- Guard locking on machines with AS-i Safety at Work networks
- Installations where a single cable for bus and solenoid power simplifies wiring
- Process protection on hinged, sliding and removable guards
- Direct replacement of AZM 161 Z ST1-AS RA units in existing AS-i installations
Note: the actuator is ordered separately. With the power-to-lock principle, the guard can be opened immediately after a power failure. Schmersal states these interlocks may only be used for personnel protection in special cases, after a thorough evaluation of the accident risk.
Buy the Schmersal 101209104 from Atlantech Drives
Atlantech Drives supplies the Schmersal 101209104 AZM 161 Z ST1-AS RA with fast worldwide shipping and a 12-month warranty. Our experienced sales team can also quote AZM 161 actuators, other AS-i safety components and Schmersal safety switches, solenoid interlocks and safety sensors. Request a quote today for price and availability.
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Manufacturer website: Schmersal
