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QS90SR2SN-Q
The QS90SR2SN-Q from Mitsubishi is a safety relay extension module designed for integration into Melsec-Q systems. This unit operates on 24 V DC power with a consumption of 35 mA under standard conditions and up to 110 mA when using three extensions.
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Technical specifications for QS90SR2SN-Q
| Manufacturer | Mitsubishi |
|---|---|
| Product Line | Melsec-Q |
| Part Number | QS90SR2SN-Q |
| Weight | 3.00 lbs (1.36 kg) |
| Module Type | Safety Relay Extension Unit |
| Module Power Consumption | 35 mA (without extensions), 110 mA (with three extensions) |
| Module Power Voltage | 24 V DC (5% ripple tolerance) |
| Activation Time (Output ON) | Less than or equal to 50 milliseconds |
| Deactivation Time (Output OFF) | Less than or equal to 20 milliseconds |
| Safety Input Channels | 1 safety input (dual-channel) |
| Additional Input Channels | 1 start-up input |
| Safety Input Operating Voltage | 24 V DC (with 5% ripple tolerance) |
| Safety Input Current Rating | 4.6 mA (300 mA during relay activation) |
| Input Electrical Isolation | Relay-based isolation |
| Safety Output Channels | 1 safety output with 3 individual points |
| Load Current Capacity | 3.6 A max per point (Category 4); 5.0 A max per point (Category 3) |
| Minimum Load for Switching | 5 V DC, 5 mA minimum |
| Max Voltage for Output Contacts | 250 V AC or 30 V DC max |
| Operating Temperature Range | 0°C to 55°C |
The Mitsubishi QS90SR2SN-Q is a dedicated safety relay extension unit within the Melsec-Q series, suitable for enhancing system safety. It requires a power input of 24 V DC and can handle a current consumption of 35 mA in its basic configuration. When three extensions are connected, this figure increases to 110 mA.
For signal processing, it features a safety input with dual-channel capability, alongside a start-up input designed for operational initiation. The safety input operates at the same voltage of 24 V DC under specified tolerance levels, consuming 4.6 mA in normal circumstances and up to 300 mA during relay activation, ensuring reliable performance.
This module processes output operations efficiently, achieving activation in a maximum of 50 milliseconds and deactivation in under 20 milliseconds. The QS90SR2SN-Q controls a safety output capable of managing three points, designed to support loads with a maximum capacity of 3.6 A per point under Category 4 conditions or 5.0 A under Category 3 conditions. Moreover, it requires a minimum load of 5 V DC and 5 mA for effective switching.
For voltage handling, the module can manage output contacts with a maximum rating of 250 V AC or 30 V DC, expanding its operational versatility across different applications. The device is designed to function effectively in an environment ranging from 0°C to 55°C, making it a reliable choice for various industrial settings.
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