Brand :
SiemensThe 6ES7135-6HD00-0BA1 is an analog output module (AQ 4xU/I ST) for the Siemens SIMATIC ET 200SP distributed I/O system.
The 6ES7135-6HD00-0BA1 is an analog output module (AQ 4xU/I ST) for the Siemens SIMATIC ET 200SP distributed I/O system. It provides four analog output channels, supporting both voltage and current signal types, suitable for precise control needs in various industrial automation scenarios. The module is only 15mm wide, with a compact design, and supports firmware updates and I&M identification data.

| Brand |
SIEMENS |
| Model / Part Number | 6ES7135-6HD00-0BA1 |
| Number of Output Channels | 4 analog outputs |
| Output Signal Range | Voltage (±10V, ±5V, 0-10V, 1-5V); Current (±20mA, 0-20mA, 4-20mA) |
| Resolution | Up to 16 bits (including sign bit) |
| Load Impedance | Voltage output ≥2kΩ; Current output ≤500Ω |
| Power Supply Voltage | 24V DC (19.2V to 28.8V) |
| Power Consumption | Typical 1.5W |
| Protection Rating | IP20 |
| Dimensions (W x H x D) | 15 x 73 x 58 mm |
| Applicable Base Units | BU type A0, A1 |
Q: In what situations is this module typically used?
A: Primarily used in industrial automation where precise analog control of actuators (such as valve positioners, frequency converters, proportional valves, etc.) is required. Common applications include process control, speed/position control on production lines, and HVAC systems.
Q: When connecting a 4-20mA current output, what could be the reason if the output current does not reach 20mA?
A: The most common reason is that the total loop resistance exceeds the module's maximum drive capability (500Ω). If passive isolators or similar devices are connected in series in the loop, their voltage drop will further compress the available drive voltage, limiting the output. The solution is to calculate the total loop resistance or consider using an active isolator instead of a passive isolator.
Q: What types of base units can this module be used with?
A: It is compatible with BU type A0 and A1 base units. Specific compatible base units can be identified by the last two digits of the product number.
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