The GE Multilin UR-9EH, also cataloged as the UR-9EH Analog Output Module, operates as a dedicated hardware component for converting internal digital system parameters into precise analog signals within Universal Relay platforms.
| Parameter | Specification |
|---|---|
| Model | UR-9EH |
| Brand | GE Multilin (General Electric) |
| Origin | USA |
| Weight | 0.45 kg |
| Dimensions | 170 mm x 105 mm x 32 mm |
| Operating Temp | -40 to +85 deg C |
| Power Consumption | 4.5 W maximum from backplane |
| Module Type | Analog Output Module (AOM) |
| Output Channels | 8 Independent Channels |
| D/A Resolution | 16-Bit |
| Output Ranges | 4-20 mA (Standard), 0-10 VDC (Configurable) |
| Accuracy | +/-0.2% of Full Scale |
| Isolation | 2k Vrms galvanic isolation (Outputs to Backplane) |
| Chassis Compatibility | Standard 6U UR Chassis (Plug-in slot) |
The module interfaces directly with the proprietary high-speed UR internal backplane bus, utilizing deterministic synchronization protocols to update all eight analog channels within millisecond control loops. This backplane bus communication velocity allows the host protection relay processor to transmit real-time calculated parameters without introduces processing latencies. Firmware flash compatibility checks execute automatically upon chassis power-up, verifying that the module microcode matches the central processor unit core operating system version to prevent channel configuration mismatches.
Q: Does the module support hot-swap replacement while the Universal Relay chassis is energized?
A: No, hot-swapping is not permitted. The UR chassis must be completely de-energized before removing or inserting the module to prevent transient electrical damage to the backplane communication bus.
Q: Can the output channels be configured with mixed ranges simultaneously?
A: Yes, each of the eight independent channels is individually software-configured via the EnerVista software setup to operate either as a 4-20 mA current loop or a 0-10 VDC voltage output interface.
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