Product Details
Product Description
Product Description
Focus on DCS, PLC, robot control system and large servo system.
Main products: various modules / cards, controllers, touch screens, servo drivers.
Advantages: supply of imported original products, professional production parts,
Fast delivery, accurate delivery time,
The main brands include ABB Bailey, Ge / fuanc, Foxboro, Invensys Triconex, Bently, A-B Rockwell, Emerson, ovation, Motorola, xyvom, Honeywell, Rexroth, KUKA, Ni, Deif, Yokogawa, Woodward, Ryan, Schneider, Yaskawa, Moog, prosoft and other brands
MC91 HESG440588R4 HESG112714B
Table 12-1 lists common problem codes and Table 12-2 lists uncommon problem codes. Each entry lists the problem code number, displayed text string, a short description of the fault condition, and corrective action. Most problem codes have more than one corrective action listed. Perform the corrective actions in the order they appear until the problem is resolved. Table 12-1. Common Problem Codes Code Text String Description Corrective Action PC1 POLAR Sensor polarization Verify process conditions, specifically conductivity, are within values listed in Table 1-3. Verify sensor does not have any trapped air bubbles within the sensing cavity (near the center sensing electrode). Trapped air reduces sensor surface area and will affect accuracy of displayed conductivity and output current. Check cleanliness of sensor. If not clean, remove any foreign material. Clean sensor (PR27) and verify response to conductivity standards. Electronically test sensor (PR25). Replace if it does not meet requirements. Verify sensor wiring connections. PC6 HI.LOOP Current loop above upper range value (+0.4 mA hysteresis) Verify process conditions are within configured output range. If PV is outside configured range, increase output range. Verify transmitter is configured for correct temperature compensation type. Conduct temperature calibration. If not using temperature sensor, verify configuration for TMP.SNS is NONE and proper process temperature is set. Verify sensor wiring connections. Remove any liquids, oils, scales, or corrosion from transmitter terminal block or extension cable junction box terminals. Clean sensor and perform process calibration. Electronically test sensor and temperature compensator (PR25). Replace sensor if it does not meet requirements. PC7 LO.LOOP Current loop below lower range value (-0.2 mA hysteresis) Perform PC6 corrective actions. PC8 HI.PV PV above transmitter range Verify process conditions are within transmitter range. PV must be within transmitter range. Verify sensor wiring connections. Verify sensor does not have any exposed wire from nicks, etc. If it does, repair (if possible) or replace. Remove any liquids, oils, scale, or corrosion from transmitter terminal block or extension cable junction box terminals. Verify sensor responds to conductivity standards. Replace sensor and/or sensor extension cable (if present) if sensor does not respond. Electronically test sensor (PR25). Replace if it does not meet requirements
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