Derivative Action in PID Control Without Noise Problems
Learn what derivative action contributes to a PID loop, why it can amplify measurement noise and setpoint changes, and how filtering, sampling, and staged tests make D tuning safer.
Manufacturer: Allen-Bradley
Product No.: 1756-OW16I
Country of origin:United States
Product Type: Discrete Output Module
Payment: T/T, Western Union
Weight: 350g
Dimensions: 14.5 x 11.2 x 3.5 cm
Shipping port: Xiamen
Warranty: 12 months
The Allen-Bradley 1756-OW16I is a ControlLogix discrete relay output module designed to interface industrial controllers with high-capacity AC and DC loads. As part of the modular ControlLogix architecture, this unit features 16 normally open, individually isolated relay output points capable of handling flexible voltage ranges from 5 to 125VDC and 10 to 240VAC. The module supports scheduled outputs and configurable fault states including Hold Last State, User-Defined On, and User-Defined Off, providing robust control state management during controller communication faults or system transitions.
Engineered for demanding industrial environments, the 1756-OW16I mounts directly into any ControlLogix chassis and interfaces with field wiring via a removable terminal block (RTB). The isolated channel architecture allows multiple power sources and differing voltage potentials to be switched across the same physical module without cross-circuit interference. Backplane power is efficiently managed, drawing 150mA from the 5.1VDC and 24VDC rails, while robust mechanical relays ensure reliable isolation between high-power field devices and low-voltage controller backplanes.
| Technical Parameter | Specification |
|---|---|
| Module Type | Isolated Relay Contact Output Module |
| Number of Outputs | 16 normally open, isolated points |
| Operating Voltage Range | 5 to 125VDC, 10 to 240VAC |
| Current Rating per Point | 1A at 5 to 30VDC; 0.5A at 48VDC; 0.22A at 125VDC; 1.5A at 120VAC; 0.75A at 240VAC |
| Minimum Load Current | 10mA per point |
| Backplane Current Draw | 150mA at 5.1VDC; 150mA at 24VDC |
| Total Backplane Power | 4.4W |
| Thermal Dissipation | 4.5W max at 60 degC (140 degF) / 15.35 BTU/hr |
| Output Delay Time | 10ms max (Off to On / On to Off) |
| Switching Frequency | 1 operation every 3 seconds max at rated load (0.3 Hz) |
| Isolation Voltage | 250V reinforced insulation (tested at 1350VAC for 2s) |
| Slot Width | 1 Standard ControlLogix Slot |
| Enclosure Type | Open Style |
| Country of Origin | United States |
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| Country of origin |
United States
|