9240si Loop Controller User Manual — Proven
Before handling the 9240SI, observe the following:
WARNING: Never disconnect the loop controller while power is applied if the load is inductive (e.g., solenoid valves, motor starters). Always use an external fast-acting fuse (1A, 250V) on the power input.
The rear of the 9240SI is divided into five terminal blocks (TB1–TB5). Use copper conductors only (26–14 AWG). Strip length: 7mm. 9240si loop controller user manual
| Terminal Block | Pin | Label | Function | |----------------|-----|-------|-----------| | TB1 (Power) | 1 | L / + | AC Live (85–264V) or DC+ (24V) | | | 2 | N / - | AC Neutral or DC- | | | 3 | ⏚ | Earth ground | | TB2 (Analog Input 1) | 4 | IN1+ | Universal input (TC, RTD, mA, V) | | | 5 | IN1- | Common / return | | TB3 (Analog Input 2 – remote SP) | 6 | IN2+ | 0–10V or 0–20mA secondary input | | | 7 | IN2- | Common | | TB4 (Output 1: Control) | 8 | OUT1+ | SSR drive (5V DC / 20mA) or 4–20mA | | | 9 | OUT1- | Return | | TB5 (Alarm / Digital I/O)|10 | AL1 | Relay 1 (NO, 2A @ 250V) | | | 11 | AL2 | Relay 2 (NC, configurable) | | | 12 | COM | Digital common |
To control the 9240si, you do not write raw code; you load a GSDML file (General Station Description) into your PLC software (TIA Portal, Studio 5000, Codesys, etc.). Before handling the 9240SI, observe the following:
Step-by-Step:
Typical Command Sequence:
| Parameter | Value | |-----------|-------| | Accuracy | ±0.1% of span, ±1 digit (TC input: ±1.0°C) | | Sampling rate | 10 Hz (100 ms) | | PID update rate | 250 ms | | Analog input resolution | 18 bits | | Control output resolution | 16 bits (4–20mA), 1ms PWM (SSR) | | Isolation | 1500V AC between input, output, power | | Agency approvals | CE, UL 61010-1, FM Class 3545 |
When you are standing in front of a panel in a noisy plant, you don’t want to dig through menus. The 9240si is designed for situational awareness. WARNING: Never disconnect the loop controller while power