Title | P# | Parameter |
| Description |
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Advanced Current | P71 | Contactor Delay (after start command) | Sets the delay time between the request to actuate K1 and the start | |
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| of firing the thyristors. | |
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| P72 | Trip Sensitivity (1=fastest trip) | Unused | |
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| P73 | Last Trip (Most Recent Trip) | P73 stores the most recent trip code for the most recent fault. Trip | |
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| code definitions are as follows: | |
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| 0 | Not Used |
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| 1 | Phase Loss Fault. One or phases of the incoming three phase AC power is |
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| missing. Check fuses etc. |
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| 2 | Thermal Switch Fault. A thermal switch (fan cooled units only) detected an over |
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| temperature condition. P51 (or P95) bit 5 enabled. |
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| 3 * | Thyristor Signal Fault. Thyristor control signal fault. |
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| 4 * | Thyristor Firing Fault. One or more thyristors not firing. |
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| 5 * | Thyristor Signal Fault. Thyristor control signal fault. |
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| 6 * | Thyristor Signal Fault. Thyristor control signal fault. |
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| 7 * | Thyristor Sensing Signal Fault. |
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| 8 * | Thyristor Sensing Signal Fault. |
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| 9 * | Thyristor Sensing Signal Fault. |
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| 10 * Thyristor Short Circuit. Thyristor shorted across the poles. | |
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| 11 | Under Current Fault. When •Top of Ramp" is reached, P28 (or P87) Low |
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| Current Level and P29 (or P88) Low Current Time become active. If P51, Bit 4 |
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| is enabled, a fault will occur if the output current is less than P28 for longer |
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| than the P29 time period. |
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| 12 | Current Limit Fault. During |
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| (or P90) Current Limit Time are active. If P51, Bit 1 is enabled, a fault will occur |
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| if the output current exceeds P30 for longer than the P31 time period. |
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| 13 | Overload Fault. During normal operation, P34 (or P93) Overload Level and P35 |
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| (or P94) Overload Delay are active. If P51, Bit 2 is enabled, a fault will occur if |
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| the output current is equal to or greater than P34 for longer than the P35 time |
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| period. |
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| 14 | Shearpin Fault. When •Top of Ramp" is reached, P32 (or P91) Shearpin Level |
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| and P33 (or P92) Shearpin Time become active. If P51, Bit 3 is enabled, a fault |
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| will occur if the output current is greater than P32 for longer than the P33 time |
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| period. |
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| 15 | Thermistor Fault. Motor is overtemperature. |
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| 16 | External Trip. |
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| * | Contact Baldor if this fault occurs. |
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Parameters | P74 | 2nd Last Trip | P74 stores the trip code for the fault previous to P73. See P73 for definitions. | |
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| P75 | 3rd Last Trip | P75 stores the trip code for the fault previous to P74. See P73 for definitions. | |
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| P76 | 4th Last Trip | P76 stores the trip code for the fault previous to P75. See P73 for definitions. | |
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| P77 | 5th Last Trip (Oldest trip) | P77 stores the trip code for the fault previous to P76. See P73 for definitions. | |
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| P78 | Protection Mode 2 | Determines the fault protection method | |
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| (trips or 2nd param set) | 0= | Input phase loss detection only. |
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| 64= Full protection with full volts after top of ramp. | |
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| 128= Full protection during start then bypass (no protection) | |
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| 192= Full protection + Optimization | |
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| P79 | Start Pedestal 2 | Sets the voltage level for the “Start of Voltage Ramp”. Must be | |
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| (for 2nd param set) | sufficient to allow motor to generate a breakaway torque. | |
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| P80 | Start Time 2 (for 2nd param set) | Sets the time allowed for motor voltage to equal line voltage. | |
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| P81 | Kick Pedestal 2 (for 2nd param set) | Sets the voltage level at the start of the kickstart operation. | |
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| P82 | Kick Time 2 (for 2nd param set) | Sets the number of cycles that the P81 voltage is applied. Note that | |
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| for 60 Hz, 40 cycles = 667ms. For 50 Hz, 40 cycles = 800ms. | |
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| P83 | Dwell 2 (for 2nd param set) | Sets the dwell time allowed after top of ramp is reached. | |
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| P84 | Stop Pedestal 2 (for 2nd param set) | Sets the drop in motor voltage for the “Stop Voltage Ramp” | |
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| operation. | |
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| P85 | Stop Time 2 (for 2nd param set) | Sets the ramp down time for motor stopping. | |
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| MN850 |