Overview
Configured for discrete signal acquisition in the GE Series 90-30 PLC platform, the General Electric IC693MDL646 (IC693MDL646 Discrete Input Module) accepts 16 DC input channels. It supports positive or negative logic wiring and operates with a 0 to +30 VDC input range. Each channel draws 7 mA.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC693MDL646 |
| Brand | General Electric |
| Series | Series 90-30 |
| Module Type | Discrete Input Module |
| Origin | USA |
| Weight | 0.3 kg |
| Dimensions | Estimated shipping size: 3.6 x 13 x 13.5 cm |
| Operating Temp | Not specified in supplied data |
| Power Consumption | 80 mA @ 5 VDC; 125 mA @ 24 VDC |
| Number of Inputs | 16 |
| Input Configuration | One group with a single common |
| Input Current | 7 mA per channel |
| Input Voltage Range | 0 to +30 VDC |
| Logic | Positive / Negative logic |
| Isolation | 1500 V between field side and logic side |
| Lifecycle Status | Discontinued / Obsolete |
| Tariff Code | 8537101190 |
Industrial I/O Signal Characteristics
The IC693MDL646 provides 16 discrete DC input points for the Series 90-30 I/O architecture. Each input channel accepts signals within the specified 0 to +30 VDC range and draws 7 mA.
The module uses one input group with a single common connection. Therefore, field wiring should follow the selected positive or negative logic configuration. In addition, the 1500 V isolation rating separates the field side from the logic side.
For system design, the module’s 16-point density allows multiple discrete field signals to occupy a single I/O module position. However, the specified 80 mA at 5 VDC and 125 mA at 24 VDC current draw should be included when calculating the applicable system power load.
Frequently Asked Questions
Q: How many input channels does the IC693MDL646 provide?
A: The module provides 16 discrete DC input channels arranged as one group with a single common.
Q: What input voltage does the IC693MDL646 accept?
A: The specified input voltage range is 0 to +30 VDC, with an input current of 7 mA per channel.
Q: Does the module provide electrical isolation?
A: Yes. The supplied specification states 1500 V isolation between the field side and logic side.
Field Installation Guidelines
Install the IC693MDL646 in the designated Series 90-30 PLC I/O position and secure the module according to the rack assembly procedure.
Connect field devices according to the selected positive or negative logic configuration. Verify the common connection before applying field power, because the module uses one group with a single common.
Route discrete input wiring separately from high-voltage power conductors and high-current switching circuits where practical. Maintain clean terminal connections and avoid loose conductors.
Where shielded field wiring is used, terminate and ground the shield according to the plant grounding scheme and the applicable system wiring practice. Do not use the signal shield as a substitute for the designated input common.
Before commissioning, verify the field voltage at the input terminals and confirm that the applied voltage remains within the specified 0 to +30 VDC range. Also check the PLC rack power load against the module’s specified current draw.
