Recently, I worked on a project using the Mitsubishi Q series PLC, with the output module being the QY81P. I intended to directly drive the Schneider LC1D09BDC contactor with this module, but encountered some issues. Upon checking, I found that the QY81P has an output load current of 0.1A per point and 2A for the common terminal, while the contactor coil requires 5.4W, which it cannot support… Fortunately, there was also an AJ65 CC-Link remote module installed in the control cabinet, so I switched to that.After further investigation, I found that the QY81P has an output load current of 0.1A per point and 2A for the common terminal, while the QY80 has an output load current of 0.5A per point and 4A for the common terminal. The QY71 has an output load current of 16mA per point and 512mA for the common terminal.
The AJ65SBTB1-32TE1 has an output load current of 0.1A per point and 1.6A for the common terminal (I just discovered that this module is also 0.1A; I always thought it was 0.5A…)
The Shenglan relay module Y410 series has a rated coil current of 7.5mA.
The Y440 series has 8.3mA.
The AIRTAC 3V1 series solenoid valve DC24V consumes 3.0W.
The SMC compact 5-port solenoid valve JSY1000/3000/5000 consumes power: 0.1W (for models with energy-saving circuits), 0.4W (standard models).
The FESTO standard directional control valve VSVA-T32C-AZH-A2-1C1 has a coil rating of 24VDC, 1.8W.
The Schneider RXM miniature relay operates at 24VDC, 0.9W.
The Schneider LC1D09BDC contactor requires 5.4W.
The Schneider XB2B series metal push button indicator light consumes 0.5W, and the buzzer draws 25mA.
The Weidmüller relay DRI314024L operates at 24VDC with a current of 21.8mA and a power of 530mW.
After checking, I realized that Mitsubishi has quite a few modules with an output of 0.1A. I remember that Siemens transistor outputs are generally 0.5A, so I subconsciously assumed they were all the same. I have used the AJ65SBTB1-32TE1 for several projects, directly driving smaller solenoid valves with the output points, while larger solenoid valves typically go through relays. There is a certain risk when using small solenoid valves and large contactors…