Baldor Baldor, MN850 manual Missing. Check fuses etc

Page 39

Title

P#

Parameter

 

Description

 

 

 

 

Advanced Current

P71

Contactor Delay (after start command)

Sets the delay time between the request to actuate K1 and the start

 

 

 

of firing the thyristors.

 

 

 

 

 

P72

Trip Sensitivity (1=fastest trip)

Unused

 

 

 

 

 

P73

Last Trip (Most Recent Trip)

P73 stores the most recent trip code for the most recent fault. Trip

 

 

 

code definitions are as follows:

 

 

 

0

Not Used

 

 

 

1

Phase Loss Fault. One or phases of the incoming three phase AC power is

 

 

 

 

missing. Check fuses etc.

 

 

 

2

Thermal Switch Fault. A thermal switch (fan cooled units only) detected an over

 

 

 

 

temperature condition. P51 (or P95) bit 5 enabled.

 

 

 

3 *

Thyristor Signal Fault. Thyristor control signal fault.

 

 

 

4 *

Thyristor Firing Fault. One or more thyristors not firing.

 

 

 

5 *

Thyristor Signal Fault. Thyristor control signal fault.

 

 

 

6 *

Thyristor Signal Fault. Thyristor control signal fault.

 

 

 

7 *

Thyristor Sensing Signal Fault.

 

 

 

8 *

Thyristor Sensing Signal Fault.

 

 

 

9 *

Thyristor Sensing Signal Fault.

 

 

 

10 * Thyristor Short Circuit. Thyristor shorted across the poles.

 

 

 

11

Under Current Fault. When •Top of Ramp" is reached, P28 (or P87) Low

 

 

 

 

Current Level and P29 (or P88) Low Current Time become active. If P51, Bit 4

 

 

 

 

is enabled, a fault will occur if the output current is less than P28 for longer

 

 

 

 

than the P29 time period.

 

 

 

12

Current Limit Fault. During start-up, P30 (or P89) Current Limit Level and P31

 

 

 

 

(or P90) Current Limit Time are active. If P51, Bit 1 is enabled, a fault will occur

 

 

 

 

if the output current exceeds P30 for longer than the P31 time period.

 

 

 

13

Overload Fault. During normal operation, P34 (or P93) Overload Level and P35

 

 

 

 

(or P94) Overload Delay are active. If P51, Bit 2 is enabled, a fault will occur if

 

 

 

 

the output current is equal to or greater than P34 for longer than the P35 time

 

 

 

 

period.

 

 

 

14

Shearpin Fault. When •Top of Ramp" is reached, P32 (or P91) Shearpin Level

 

 

 

 

and P33 (or P92) Shearpin Time become active. If P51, Bit 3 is enabled, a fault

 

 

 

 

will occur if the output current is greater than P32 for longer than the P33 time

 

 

 

 

period.

 

 

 

15

Thermistor Fault. Motor is overtemperature.

 

 

 

16

External Trip.

 

 

 

*

Contact Baldor if this fault occurs.

 

 

 

 

Parameters

P74

2nd Last Trip

P74 stores the trip code for the fault previous to P73. See P73 for definitions.

 

 

 

 

 

P75

3rd Last Trip

P75 stores the trip code for the fault previous to P74. See P73 for definitions.

 

 

 

 

 

P76

4th Last Trip

P76 stores the trip code for the fault previous to P75. See P73 for definitions.

 

 

 

 

 

P77

5th Last Trip (Oldest trip)

P77 stores the trip code for the fault previous to P76. See P73 for definitions.

 

 

 

 

 

P78

Protection Mode 2

Determines the fault protection method

 

 

(trips or 2nd param set)

0=

Input phase loss detection only.

 

 

 

64= Full protection with full volts after top of ramp.

 

 

 

128= Full protection during start then bypass (no protection)

 

 

 

192= Full protection + Optimization

 

 

 

 

 

P79

Start Pedestal 2

Sets the voltage level for the “Start of Voltage Ramp”. Must be

 

 

(for 2nd param set)

sufficient to allow motor to generate a breakaway torque.

 

 

 

 

 

P80

Start Time 2 (for 2nd param set)

Sets the time allowed for motor voltage to equal line voltage.

 

 

 

 

 

P81

Kick Pedestal 2 (for 2nd param set)

Sets the voltage level at the start of the kickstart operation.

 

 

 

 

 

P82

Kick Time 2 (for 2nd param set)

Sets the number of cycles that the P81 voltage is applied. Note that

 

 

 

for 60 Hz, 40 cycles = 667ms. For 50 Hz, 40 cycles = 800ms.

 

 

 

 

 

P83

Dwell 2 (for 2nd param set)

Sets the dwell time allowed after top of ramp is reached.

 

 

 

 

 

P84

Stop Pedestal 2 (for 2nd param set)

Sets the drop in motor voltage for the “Stop Voltage Ramp”

 

 

 

operation.

 

 

 

 

 

P85

Stop Time 2 (for 2nd param set)

Sets the ramp down time for motor stopping.

 

 

 

 

 

4-12 Parameter Index

MN850

Image 39
Contents Digital Soft-Start Table of Contents Appendix D Appendix aAppendix B Appendix CLimited Warranty Section General InformationIntroduction Precautions Safety NoticeAir Flow Clearance Requirements Section InstallationReceiving, Inspection and Storage Physical LocationCover Removal Tools Required Mounting Instruction For tapped mounting holesMounting Instructions For clearance mounting holes AC Main Circuit Connection Descriptions UL Required Fuses for Short Circuit RatingCatalog Number Digital Soft-Start Control SupplyMotor Overload and Thermal Protection BaldorBaldor Digital In-Delta Soft-Start Connections45x20 NEC Wire Size and Protection DevicesThree Wire Control Two Wire Control115 / 230VAC 115/230VAC Top of Ramp Bypass ConnectionTo AC Input Motor Reversing ConnectionShock Mounting InstallationSure to check the following items Pre-Start ChecklistSection Operation OverviewAction Description Display Comments Start-Up ProcedureKeypad Mode Switch System Program Menu Data Status Entry Keypad OperationOperating Modes System Status Mode Description Display CommentsMenu Mode Data Entry ModeMenu Structure Menu Structure DiagramMenu Navigation Menu Navigation ExamplesSave Param Motor Starting Definitions Term Motor Starting Key TermsApplications Auto Features Remote Start and Running the Motor Optimising CurrentStopping the Motor Motor Stopping Definitions TermApplications Menu Section Parameter IndexMenu Descriptions Basic MenuParameter Index MN850 Advanced Menu Auto Features Menu Password Menu Permanent Store MenuInputs Menu Outputs Menu Parameters MenuTrips Menu Parameter Description Title Parameter Description Parameter DescriptionsRatedCurrent x Example P52 User Flags Definition Preset ValueK3 BIT Mask Missing. Check fuses etc Second of a start request is forced to 0 stop time Thermal Switch 2 Over temp . Prevents re-start if set , Off Preliminary Checks Section TroubleshootingFault Trip Messages Power Off ChecksIndication Corrective Action Troubleshooting Guide230/460VAC 3 Phase Special Motor Considerations Analog SignalsElectrical Noise Considerations Relay and Contactor CoilsIdentification Section Specifications and Product DataInput Ratings Storage ConditionsOperating Conditions 230V 460V 575V Size Mounting Dimensions10.43 265 Mounting Dimensions 151 200 100 105 12.68 24.45 10.87 Specifications and Product Data MN850 EMC Conformity and CE Marking Wiring of Shielded Screened CablesAppendix a CE Guidelines CE Declaration of ConformityControl Cable Screens Grounding EMC Installation InstructionsAppendix MN850 Appendix B Parameter Values Title Parameter Adjustable Range Factory User SettingApplications MN850 MN850 Applications B-3 Section General Information Voltage Independent Parts Description Appendix C Replacement Parts575VAC Parts Description Grounding Appendix D Voltage Surge ProtectionVoltage Surge Protection MN850 Grounded or Symbol High Resistance Ground Control EnclosureTable D-1 Baldor MOV Specifications Corner or Center-Tap Symbol Grounded Control EnclosureVoltage Surge Protection MN850 Appendix E Remote Keypad Mounting Template 500340 810 500 250  Baldor Electric Company MN850 03 C&J1500 Baldor Electric Company