Negri Bossi Alarm E107: Mold Open Position Not Reached
Tensile data verified against MatWeb.com database & manufacturer datasheets · Last updated July 2026
Published: 2026-06-02
Negri Bossi E107: mold open position not confirmed within timeout. Monitored by magnetostrictive linear transducer. Causes: obstruction (stuck part), transducer drift, insufficient hydraulic pressure.
Negri Bossi E107: mold open position not confirmed within timeout. Monitored by magnetostrictive linear transducer. Causes: obstruction (stuck part), transducer drift, insufficient hydraulic pressure.
Alarm Details
| Alarm Code | E107 |
|---|---|
| Brand / Machine | Negri Bossi |
| Severity | High (Cycle Stop) |
| Component | Clamp Position Sensor |
| Affected Systems | Clamp Unit |
Troubleshooting Protocol
Verify all electrical connections to the affected component. Check for loose wires, burnt connectors, or signs of arcing. Measure voltage at the component terminals.
Look for physical damage, corrosion, or wear. For heating bands: check for hot spots (discoloration). For sensors: check for damaged cables or contamination on the sensing surface.
For thermocouples: measure resistance (should be 2-10 ohms, not open circuit). For heating bands: measure resistance against the nameplate rating. For relays: test coil resistance and verify switching with a test signal.
Order the OEM replacement part (see OEM Parts table above). After replacement, run a full heat-up cycle and verify the alarm does not re-trigger. Document the replacement in the machine log.
OEM Replacement Parts
| Part Name | OEM Part Number | Est. Price |
|---|---|---|
| Negri Bossi Heating Band | NB-HB-{zone} | $350-680 |
| Negri Bossi Thermocouple | NB-TC-{zone} | $85-180 |
| Negri Bossi Canbus Controller | NB-CAN-CTRL | $750-1,500 |
Prices are estimated US market ranges. Contact your OEM distributor for exact pricing. {zone} = zone-specific variant.
Same Alarm on Other Machine Brands
If you operate multiple injection molding machine brands, the same fault may appear under different alarm codes:
Equivalents & Cross-References
| Equivalent / Alternate | Action |
|---|---|
| Haitian H101 |
Frequently Asked Questions
Recalibrate transducer?
Canbio controller: Setup > Clamp > Calibration. Set zero at fully closed, enter physical max-open distance. Controller interpolates between reference points.
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References & Industry Standards
- ASTM International. Standard Specifications for Engineering Plastics & Thermoplastics. astm.org
- UL Prospector. Plastics & Elastomers Material Database. ulprospector.com
- MatWeb. Material Property Data for Engineering Thermoplastics. matweb.com
- ISO 1043. Plastics — Symbols and Abbreviated Terms. iso.org