Why Choose the Pizzato CS AM-01ME01 Motor Standstill Safety Module?
The Pizzato CS AM-01ME01 is a dedicated motor standstill detection safety module designed to determine when an electric motor has stopped before permitting access to hazardous machinery. Part of the Pizzato CS AM safety module range, it monitors residual voltage generated by a rotating motor, allowing movement to be detected even when the motor is no longer electrically powered but continues to rotate through inertia.
The CS AM-01ME01 provides a sensorless approach to motor standstill monitoring by connecting its measurement circuits to the motor windings. The motor-standstill residual-voltage threshold can be selected across 10 sensitivity positions, allowing the monitoring system to be adapted to different motor and machine characteristics. Galvanic separation between the control and measurement circuits further supports dependable industrial operation.
Designed for safety applications up to Category 3, PL d and SIL 2, the CS AM-01ME01 provides 2 NO safety contacts and 1 NC signalling contact. It also provides two semiconductor signalling outputs and supports measurement circuits connected to both single-phase and three-phase motors, making it a versatile solution for machine guarding, access control and safe maintenance applications.
Key Advantages
- Dedicated motor standstill detection for industrial machinery.
- Detects residual voltage generated while an unpowered motor continues rotating through inertia.
- Suitable for safety applications up to Category 3, PL d and SIL 2.
- 10 selectable residual-voltage sensitivity positions allow adaptation to different motors.
- Galvanic separation between the control circuit and motor measurement circuit.
- Compatible with measurement circuits for single-phase and three-phase motors.
- Relay safety outputs provide straightforward integration with machine safety circuits.
Key Features
- Pizzato CS AM series safety module.
- Motor standstill monitoring by residual-voltage detection.
- 2 NO safety contacts.
- 1 NC signalling contact.
- Two semiconductor signalling outputs for status diagnostics.
- 10-position selectable motor-standstill sensitivity.
- Galvanically isolated control and measurement circuits.
- Suitable for single-phase and three-phase motor measurement.
- Removable connectors with screw terminals.
- 45 mm housing width for DIN-rail control cabinet installation.
Reliable Motor Standstill Monitoring for Machine Safety
Motor standstill monitoring is important where operators must not gain access to hazardous moving parts until rotation has ceased. The Pizzato CS AM-01ME01 monitors residual voltage produced by the motor while it is rotating and allows its safety outputs to change state only when the measured condition corresponds to motor standstill.
Unlike solutions that require a separate mechanical speed sensor, residual-voltage monitoring enables the module to detect continued motor movement directly through the motor measurement circuits. This is particularly useful for machinery with significant rotational inertia, where shafts, blades, flywheels or other components may continue moving after electrical power to the motor has been removed.
Typical Applications
- Machine guard interlocking systems.
- Industrial motors with significant stopping or run-down times.
- Rotating machinery and production equipment.
- Machine tools and automated manufacturing systems.
- Mixers, centrifuges and processing machinery.
- Conveyors and material handling equipment.
- Safe access control for maintenance and operator intervention.
