Current-Input-Module (CIM) MOTOR PROTECTION UNIT QUICK REFERENCE ESC. December 19, 2006 Revision 0 MAIN MENU. ²Messages Ñ. Metering Ñ.

Transcription

1 R C D R S C D R C D R S C D R S INP 8 H INP 7 INP 6 H INP 5 PG PWR STARTCO ENGINEERING LTD. COMM MPS-RTD INPUT MODULE CTU/ MPU + INP 1 4V S INP INP 3 S INP 4 COMM 0 D C H R D C R D C H R D C V STARTCO ENGINEERING LTD. 406 JESSOP AVENUE SASKATOON, SASKATCHEWAN CANADA S7N S5 PHONE: (306) FAX: (306) WEB: MPU-3 MOTOR PROTECTION UNIT Current-Input-Module (CIM) Configuration QUICK REFERENCE December 19, 006 Revision 0 MOTOR PROTECTION UNIT TRIP ALARM RUN MAIN MENU Metering Ñ ²Messages Ñ Setup Ñ UPI ESC RESET ENTER STARTCO ENGINEERING LTD. MPU-3 Publication: MPU-3-QR Document: S9-P301-QR Printed in Canada. See MPU-3 manual for Detailed information STARTCO ENGINEERING LTD. 1

2 SETUP INDEX Page Setup-Record Page Analog Output Baud Rate...,3...5 Clock Setting...3 CT Primary Digital Input Earth Fault EF Source EF-CT Primary Error Check...5 FLA Rating Frequency Jam Local Temp Sensor...5 Network ID...5 Network Type...5 OPI Display...5 Overcurrent Overload Password Password Time Out Phase Loss Phase Reverse PTC Temperature Relay Outputs RY Pulse Time RTD Modules...5,30-3 RTD Temperature Run-Mode Delay Service Factor Starts/Hour System Name Unbalance Undercurrent User Registers...6

3 3 (1) (3) FUNCTION & SET POINT RTD-Sensor-Error RTD-Sensor-Error Alarm Action Hot-Motor Compensation (HMC) HMC High HMC Low (3) (3) (3) (3) (3) MIN DEFAULT MAX UNIT PROGRAM SELECTION C Enabled C Locked when the motor is running. MPS-RTD Module temperature actions are fixed as and. Applies to both local and module RTD s. TABLE OF CONTENTS Page 1 General Information... Model Numbers... MPU-3 Connections...6 Supply Voltage...6 PTC or RTD Input (Local)....6 Digital Input....6 Analog Output....6 TIA-3 Communications...6 MPU-CIM Connections....8 MPS-RTD Connections...10 Cable Restraint Dielectric-Strength Testing...10 Menu System...1 Display Contrast...1 Front-Panel LED Indication...1 Rear-Panel LED Indication...13 Password Entry and Programming Trip Reset...13 Emergency Thermal Reset MPU-3/MPU-16A Compatibility...14 MPU-3 Menu Map...15 Metering...15 Messages...16 Setup...18 MPU-3 Setup Record...4 Specifications are subject to change without notice. Startco Engineering Ltd. Is not liable for contingent or consequential damages, or for expenses sustained as a result of a malfunction, incorrect application, or incorrect adjustment. For complete specifications, see the MPU-3 manual.

4 GENERAL INFORMATION The Startco MPU-3 is a motor-protection relay that provides integrated protection, metering, and data-logging functions for fixedand variable-frequency applications. The MPU-3 can be programmed using the front-panel operator interface, the TIA-3 port, or an optional communications network. A basic system consists of an MPU-3, an MPU-CIM, and three linecurrent transformers. Earth-fault current measurement can be provided by a 1-A, 5-A, or EFCT-series core-balance CT, or it can be calculated from the line-current inputs. In addition to the single PTC/RTD input on the MPU-3, up to three eight-input MPS-RTD modules can be connected to an MPU-3. The MPU-3 switch-mode power supply is rated 65 to 65 Vac and 80 to 75 Vdc. Outline and mounting details for the MPU-3 are shown in Figs. 1 and. Outline and mounting details for the MPU-CIM and MPS-RTD are shown in Fig. 3. MODEL NUMBERS MPU (1) Options: (1) 00 CIM Input 01 1-A CT Input Network Communications: 0 None, TIA-3 only 1 TIA-485 c/w A-B DF1 & Modbus RTU Protocols TM DeviceNet 4 IEEE 80.3 (Ethernet) Power Supply: 0 Universal ac/dc (65 to 65 Vac and 80 to 75 Vdc) Requires input from MPU-CIM or MPU-16A ICT-x MPU-CIM Current Input Module MPS-RTD RTD Module FUNCTION & SET POINT MIN DEFAULT MAX UNIT PROGRAM SELECTION 31 RTD M1 #5: Name RTD Module 1 #5 Type Pt100 Ni100 Function Stator Stator Trip C Alarm C RTD M1 #6: Name RTD Module 1 #6 Type Pt100 Ni100 Function Stator Stator Trip C Alarm C RTD M1 #7: Name RTD Module 1 #7 Type Pt100 Ni100 Function Stator Stator Trip C Alarm C RTD M1 #8: Name RTD Module 1 #8 Type Pt100 Ni100 Function Stator Stator Trip C Alarm C Ni10 Cu10 Ambient Ni10 Cu10 Ambient Ni10 Cu10 Ambient Ni10 Cu10 Ambient

5 30 3 FUNCTION & SET POINT RTD Temperature (MPS Module) RTD M1 #1: Name MIN DEFAULT MAX UNIT PROGRAM SELECTION RTD Module 1 #1 Type Pt100 Ni100 Function Stator Stator Trip C Alarm C Ni10 Cu10 Ambient 91.1 (3.59) TOP LATCH TAB 96.0 (3.78) CLAMP SCREWS NOTES: 1. DIMENSIONS IN MILLIMETRES (INCHES). PANEL-MOUNT CLAMP 9.0 (3.6) R=4.8 (0.19) MAXIMUM (3.78) (5.0) RTD M1 #: Name RTD Module 1 # Type Pt100 Ni100 Function Stator Stator Trip C Alarm C RTD M1 #3: Name RTD Module 1 #3 Ni10 Cu10 Ambient (3.94) MINIMUM 9.0 (3.6) Type Pt100 Ni100 Function Stator Stator Trip C Alarm C RTD M1 #4: Name RTD Module 1 #4 Type Pt100 Ni100 Function Stator Stator Trip C Alarm C Ni10 Cu10 Ambient Ni10 Cu10 Ambient MOTOR PROTECTION UNIT STARTCO ENGINEERING LTD. MPU-3 PANEL THICKNESS 1.6 (0.06) TO 4.8 (0.19) FRONT PANEL CUTOUT DETAIL FIGURE 1. MPU-3 Outline and Panel-Mounting Details.

6 (3.59) NOTES: 1. DIMENSIONS IN MILLIMETRES (INCHES).. MOUNT SURFACE MOUNTING BRACKETS WITH 6-3 x PAN-HEAD SCREWS AND LOCKWASHERS. (INCLUDED WITH SURFACE-MOUNTING KIT). HOLE PLUGS (TOP AND BOTTOM SURFACES) TOP 96.0 (3.78) MPU-3 MOUNTING SCREWS: M4 OR 8-3 PAN HEAD. MINIMUM CLEARANCE TO ADJACENT OBJECTS. MOUNTING-HOLE PATTERN IDENTICAL TO SURFACE-MOUNT MPU-16A. FIGURE. MPU-3 Outline and Surface-Mounting Details (4.8) (5.63) MOTOR PROTECTION UNIT STARTCO ENGINEERING LTD. FRONT MPU (0.39) 19.0 (0.75) 76. (3.00) (1.00) (0.75) (NOTE 4) (NOTE 4) 11.0 (4.41) (0.65) 5.0 (0.0) (0.3) (NOTE 5) M4 OR 8-3 TAP MOUNTING DETAIL FUNCTION & SET POINT MIN DEFAULT MAX UNIT PROGRAM SELECTION Phase Reverse Trip Delay s Alarm Action Alarm Delay s Undercurrent Trip Level x FLA Trip Delay s Alarm Action Alarm Level x FLA Alarm Delay s Starts/Hour Alarm Action Number of Starts/Hour Time Between Starts min PTC Temperature Alarm Action RTD Temperature (Local) Trip Level C Alarm Action Alarm Level C

7 5 NOTES: 1. DIMENSIONS IN MILLIMETRES (INCHES). SHORTING SCREWS A, B, & C (NOTES4&5). 3. MOUNTING SCREWS: M4 x 0 OR 8-3 x OVERALL HEIGHT WHEN MOUNTED ON DIN EN mm x 7.5-mm TOP-HAT RAIL. 4. SHORTING SCREWS ARE ACCESSIBLE FROM BOTTOM OF MPU-CIM. FOR DETAILS SEE MPU-3 MANUAL. 5. SHORTING SCREWS: 6-3 x NICKEL-PLATED-BRASS BINDING HEAD. DO NOT SUBSTITUTE. (MPU-CIM ONLY) 5.5 (.07) 56.0 (.0) (NOTE 3) SIDE (0.57) (.36) 1.5 (0.50) 8 FUNCTION & SET POINT MIN DEFAULT MAX UNIT PROGRAM SELECTION Earth Fault Trip Level (Ie is EF-CT-primary rating) xie Trip Delay Alarm Action Alarm Level Alarm Delay Jam Trip Level Trip Delay Alarm Action Alarm Level Alarm Delay Unbalance Trip Level (Per unit based on I /I 1) s xie s x FLA s x FLA s pu Trip Delay Alarm Action Alarm Level (Per unit based on I /I 1) s pu Alarm Delay s Phase Loss Trip Delay s Alarm Action Alarm Delay s M4 OR 8-3 TAP (0.7) (3.94) (0.7) MOUNTING DETAIL FIGURE 3. MPU-CIM and MPS-RTD Outline and Mounting Details.

8 6 MPU-3 CONNECTIONS The MPU-3 wire-clamping terminal blocks accept 4 to 1 AWG (0. to.5 mm ) conductors. These terminal blocks unplug to allow the MPU-3 to be easily replaced. SUPPLY VOLTAGE Derive supply voltage from the line side of the motor controller or from an independent source. Connect supply voltage to terminals and 3 (L1 and L/N). In 10-Vac systems, L/N is designated as the neutral conductor. For direct-current power supplies, use L1 for the positive terminal and L/N as the negative terminal. Ground terminal 8 ( ). PTC OR RTD INPUT (LOCAL) A PTC or RTD temperature sensor can be connected to terminals 17, 18, and 19 as shown in Fig. 4. Select the sensor type in the SETUP /HARDWARE menu (see page ). DIGITAL INPUT A 4-Vdc digital input is provided on terminals 5 and 6. This input is polarity sensitive. For a logical 1, terminal 6 must be positive with respect to terminal 5. The current limited 4-Vdc source (terminals 7 & 31) can be used for the digital input. ANALOG OUTPUT With the rear-panel switch in the self-powered S position, terminal 4 is the + terminal and terminal 3 is the common and is referenced to I/O module supply terminal 7. In the loop-powered L position, the analog output is isolated from all other MPU-3 terminals and terminal 3 is the loop-powered + terminal. TIA-3 COMMUNICATIONS An MPU-3 can communicate with a PC running SE-Comm-RIS Relay Interface Software using a CA-945 adapter cable. PART II: PROTECTION SET POINTS 7 FUNCTION & SET POINT MIN DEFAULT MAX UNIT PROGRAM SELECTION Overload I t I t Model Type K-Factor 1 Locked-Rotor Current 1.5 Locked-Rotor Time Cold 0.10 Locked-Rotor Time Hot 0.10 Service Factor 1 Cooling Factor 0.10 I t Inhibit Trip I t Inhibit Alarm I t Inhibit Level (Per unit based on 100% I t) I t Alarm Action I t Alarm Level (Per unit based on 100% I t I t Reset Type Overcurrent NEMA NEMA K-Factor x FLA s s Trip Level (Ip is Phase-CT-Primary xip rating) Trip Delay s Auxiliary Overcurrent Trip Level (Ip is Phase-CT-primary rating) Trip Delay Normal pu pu xip s Normal Auto Multiple Motor Sequence

9 6 PARAMETER AND SETTINGS User Registers User Register 0 User Register 1 User Register User Register 3 User Register 4 User Register 5 User Register 6 User Register 7 User Register 8 User Register 9 User Register 10 User Register 11 User Register 1 User Register 13 User Register 14 User Register 15 User Register 16 User Register 17 User Register 18 User Register 19 User Register 0 User Register 1 User Register User Register 3 User Register 4 User Register 5 User Register 6 User Register 7 User Register 8 User Register 9 User Register 30 User Register 31 SYSTEM CONFIG System Name Password Run-Mode Delay Password Timeout UPI LED MIN DEFAULT MAX UNIT PROGRAM SELECTION Startco MPU None s min 7 A B CONTACTOR K1 PHASE CT'S (NOTE 9) EARTH-FAULT CT MOTOR (NOTE 6) C +t t S R 1 5 S R S R PHASE C PHASE B PHASE A Pt100 RTD SENSOR A B C MPU-16A C E OM F MPU-CIM (NOTE 8) E F EARTH FAULT Y X E S 5 R ALTERNATE CONNECTION FOR PTC-THERMISTOR SENSOR(S) (NOTE 10) (NOTE 3) (NOTE 6) OUTPUT (NOTE 4) S1 (NOTE 7) L1 A V B C C OM CIM S H - COMM I/O MODULE T T T E A A A B C F B A L S TEMP E M N R S S 0 + V DIG IN RELAY RELAY 1 L N AN OUT TIA-3 ONLY MPU-3 RELAY L NOTES: MPU-3 REAR VIEW SHOWN. RELAYS SHOWN DE-ENERGIZED. GROUND CABLE SHIELDS AT MPU-3 END ONLY. GROUND OUTPUT-CABLE SHIELD AT RECEIVER END ONLY. ALTERNATE CONTACTOR-COIL LOCATION. ALTERNATE CONNECTION FOR UNITS CONFIGURED FOR PTC-THERMISTOR SENSOR(S). STOP START (NOTE 5) K PROGRAMMABLE DIGITAL INPUT. DOTTED LINES SHOW 1-A-CT CONNECTION. K1 9. A-B-C PHASE ROTATION REQUIRED. L/N ALARM A K EARTH-FAULT INPUT IS NOT POLARITY SENSITIVE. OPTIONAL NETWORK COMMUNICATIONS NOT SHOWN. FIGURE 4. Typical MPU-3 Connection Diagram. -

10 8 MPU-CIM CONNECTIONS The MPU-CIM contains four signal-conditioning interface transformers. These transformers isolate the MPU-3 from the phase and earth-fault CT s. The MPU-CIM eliminates the need for CT shorting contacts when the MPU-3 is disconnected. Phase-CT and earth-fault CT secondaries can be simultaneously grounded through terminal and a jumper to terminal 0. For applications where the CT secondaries must be grounded in another location, the CT secondaries can be isolated by removing shorting screws through holes in the bottom of the MPU-CIM. NOTE: A-B-C phase sequence and polarity must be observed when connecting phase CT s. Connect the MPU-CIM to the MPU-3 using the cable provided with the MPU-CIM. Standard connections with earth-fault CT s are shown in Fig. 5. Dotted lines indicate 1-A-CT connections. Use shielded cable for EFCT-1 or EFCT- connections. Ensure only current-carrying phase conductors pass through the earth-fault CT window and that ground conductors do not. Residual earth-fault and two-ct connections are shown in the MPU-3 manual.. PARAMETER AND SETTINGS MIN DEFAULT MAX UNIT PROGRAM SELECTION 5 HARDWARE OPI Display OPI-Loss Trip RTD Modules Total Modules 0 0 RTD-Module-Error RTD-Module-Error Alarm Action MPU Temperature Sensor RTD Sensor TIA-3 Communications TIA-3 Comm ID TIA-3 Comm Baud 9,600 bit/s 9,600 19,00 Network Communications Network Type None None 1 A-B DF1 Modbus RTU 3 PTC Sensor 38,400 Modbus TCP DeviceNet Network ID Baud Rate TIA 9600 kbps TIA 9600 TIA 19k TIA 38k4 Error Checking (A-B DF1 only) Ethernet IP Ethernet Mask Network-Error Network-Error Alarm Action Remote Remote Alarm Action DN15 DN50 Not Selected Not Selected CRC BCC DN500

11 4 a) STANDARD CONNECTION 1-A OR 5-A EARTH-FAULT CT MPU-3 S H 9 1 E F C OM 16 C 15 B 14 MPU-CIM b) STANDARD CONNECTION WITH EFCT-1 OR EFCT- MPU-3 EFCT-X S E H F C B C OM MPU-CIM FIGURE 5. MPU-CIM Standard Connections. A 13 A A 5A R 5 S E X Y E E C C B F1 F OM R S 5 1 R S 5 1 R S CT A CT B CT C R 5 S E X Y E E C C B F1 F OM R S 5 1 R S 5 1 R S CT A CT B CT C 13 A 13 A 5A 1A 5A 1A 5A 1A BLUE BROWN GREEN RED WHITE 5A 1A 5A 1A 5A 1A BROWN BLUE GREEN RED WHITE BLACK BLACK MPU-3 SETUP RECORD Motor: MPU-3 S/N: Firmware Revision: Ethernet MAC ID: Date: PART I: SYSTEM AND MOTOR PARAMETERS PARAMETER AND SETTINGS MIN DEFAULT MAX UNIT PROGRAM SELECTION CT Primary (Ip) System Ratings A EF Source Measured (Ict) Calculated (3I 0 ) Measured (Ict) EF-CT Primary (Ie) (1) A Full- Current (1) A Service Factor Frequency 60 Hz 50 Variable 60 Digital Input Function None None Reset Prog. Enable Start Bypass Enabled Bypass Delay s Trip Delay s Relay Outputs Relay 1: Function (1) Mode (1) Fail Safe Fail Safe Non-Fail Safe Relay : Function (1) Mode (1) Fail Safe Fail Safe Non-Fail Safe Relay 3: Function (1) None Mode (1) Fail Safe Fail Safe Non-Fail Safe RY Pulse Time Output Parameter Analog Output (1) Zero Calibrate Full-Scale Calibrate s Phase Current Factory Calibrated Factory Calibrated

12 10 MPS-RTD CONNECTIONS Connect the MPS-RTD to the MPU-3 using the four-conductor shielded cable supplied with the MPS-RTD as shown in Fig. 6. Connect RTD s to the MPS-RTD as shown in Fig. 6. Connect the surge-protection (SPG) terminal 0 to terminal 19, and ground terminal 19. Up to three MPS-RTD modules can be connected to an MPU-3 and module addresses must be as shown in Table 1. TABLE 1 MPS-RTD ADDRESS SELECTION ADDRESS SWITCH 1 SWITCH 0 (Off line) 1 (First RTD module) (Second RTD module) 3 (Third RTD module) Open Closed Open Closed Open Open Closed Closed NOTE: MPS-RTD communication is shared with the display. Incorrect wiring can cause the display and keypad to freeze. CABLE RESTRAINT All conductors should be restrained within 100 mm (4 ) of the terminal blocks. 6-3 cabling restraint points are provided as shown in Fig. 6. Secure cables to the MPU-CIM and MPS-RTD using the cable-tie eyelets and the cable ties provided. DIELECTRIC-STRENGTH TESTING Dielectric-strength testing can be performed only on CT inputs, supply voltage input, and output relays. Unplug all other I/O and remove the MPU-CIM connection (terminal ) during dielectricstrength testing. TIA-3 Comms. TIA-3 Comm. ID TIA-3 Comm. Baud SYSTEM CONFIG. System Name Password Run-Mode Delay Clock Settings Password Time Out UPI LED (SETUP Continued) 9,600/19,00/38,400 None Relay1 Relay Relay3 Digital Input Current Detected Current > 15% Run Mode ETR On/Off Start Inhibit Network Run1 Net Activity [s] [s] Maintenance (, 4) Clear Event Records (, 4) Clear Run Hours (, 4) Clear Trip Counts (, 4) Defaults (, 4) Restart MPU-3 (, 4) Firmware Update Firmware Version Ethernet MAC Serial Number [Y/N] [Y/N] [Y/N] [Y/N] [Y/N] [Y/N] 3

13 t S H C D INP 5 R ALTERNATE -WIRE RTD CONNECTION 3-WIRE RTD CONNECTION t t t t ADDRESS SELECTION SWITCHES 1 OPEN OPEN CLOSED OPEN 1 OPEN C D R S C D R C D R S C D R S H H PG INP 8 INP 7 INP 6 INP 5 PWR STARTCO ENGINEERING LTD. COMM MPS-RTD INPUT MODULE CTU/ MPU + INP 1 INP INP 3 INP 4 COMM 4V R D C S H R D C R D C S H R D C 0 V INTERCONNECT CABLE BELDEN 314A OR EQUIVALENT FIGURE 6. MPS-RTD Connection Diagram. 11 BLACK WHITE GREEN RED (SETUP Continued) HARDWARE OPI Display OPI Loss RTD Modules Total Modules None/One/Two/Three RTD-Module-Error RTD-Module-Error Alarm Action MPU Temp Sensor None PTC Sensor RTD Sensor Network Comms. Network Type None A-B DF1 DeviceNet Modbus RTU Modbus/TCP Network ID Baud Rate TIA 9,600/19,00/38,400 DNet 15k/50k/500k Error Check None/CRC/BCC Ethernet IP [EA] Ethernet Mask [EA] Network-Error Network-Error Alarm Action Remote Remote Alarm Action User Registers Registers 0-31 (SETUP Continued next page) 6-3 CABLING RESTRAINT FASTENING POINT (4 PLACES) t t t t L S E R M S N S V H S V 0 COMM I/O MODULE DIG IN TIA-3 ONLY NOTE: RELAY RELAY 1 RELAY 3 L /N TERMINATING RESISTORS ARE REQUIRED ON COMM TERMINALS WHEN LINE LENGTH EXCEEDS 10 m (33 ). L 1 1

14 1 MENU SYSTEM All MPU-3 information displays and settings can be accessed using the MPU-3 menu system, the TIA-3 interface, or a network-communications interface. Fig. 7 shows the symbols that assist in navigating the menu system and how these symbols relate to the arrow keys on the MPU-3. An MPU-3 menu map is provided starting on page 15. These symbols indicate the menu level. Up to five submenu-level symbols may be displayed. Use left-arrow key or ESC to move back one menu level. Indicates that there are related data displays to the left or right of this display. Use left- or rightarrow keys to view adjacent data displays. Cursor indicates selected menu item and shape indicates available scrolling directions. TITLE Ñ ½ MENU ITEM 1 Ñ Use right arrowkey to select submenu. Indicates top of list. Scroll using downarrow key. ² MENU ITEM ¼ «MENU ITEM 3 * Use right-arrow key to display data. Scroll using up- or down-arrow keys. Indicates bottom of list. Scroll using uparrow key. FIGURE 7. Menu Symbols. Indicates active item in list-type set-point displays. DISPLAY CONTRAST Contrast control is available by pressing the up-arrow, right-arrow, and Enter keys simultaneously to enter the Local mode. Use the upand down-arrow keys to select Contrast and use the left- and rightarrow keys to adjust the display contrast. Press ESC to return to the MPU-3 menu. FRONT-PANEL LED INDICATION The red TRIP and yellow ALARM LED s indicate a trip or alarm condition. The green RUN LED is OFF when current is not detected, flashes when the motor is starting, and is ON when the motor is running. The yellow UPI LED is a user-programmable (SETUP Continued) RELAY OUTPUTS Relays 1 to 3 Function (, 4) None Current Detected Run Mode Start Inhibit Pulse Watchdog Network Run1 Mode (, 4) Fail Safe Non Fail Safe RY Pulse Time ANALOG OUTPUT Output Parameter Phase Current EF (EFCT Input) EF (3I 0 ) Thermal Capacity RTD Local Module Stator RTD Module RTD Module RTD Module Ambient RTD Unbalance Zero Full Scale Zero Calibrate Full Scale Calibrate (SETUP Continued next page) 1

15 0 (SETUP Continued) Function Stator Ambient Trip Temp. Alarm Temp. SYSTEM RATINGS CT Primary EF Source Calculated Measured EF-CT Primary (, 4) FLA Rating (, 4) Frequency 50 Hz 60 Hz Variable RTD Sensor RTD Sensor Alarm Action HMC Enable/Disable [E/D] HMC High HMC Low (, 4) (4) Service Factor DIGITAL INPUT Function None (with Delay) Reset Program Enable Start Bypass Bypass Delay Trip Delay (SETUP Continued next page) [E/D] indicator and its function is defined by a menu selection. 13 REAR-PANEL LED INDICATION The three LED s on the rear panel are labeled ER, MS, and NS. The red ER (Error) LED is OFF during normal operation and is ON when there is a processor error and during the firmware-update operation. Output relays are de-energized when this LED is ON. The MS (Module Status) and NS (Network Status) LED s are used for network-communications and firmware-update annunciation. The specific colour and function of these LED s is defined by the network-communications option installed in the MPU-3. PASSWORD ENTRYAND PROGRAMMING The default password is When the digital input is programmed for Program Enable, set-point access via the menu system is controlled by the digital input state and not by the password. Set points can always be changed using communications and the password. When password access is active, all set points are locked from changes until the four-character password is entered. If set-point access is locked, the user is prompted to enter the password. Once entered, set-point access is allowed and remains enabled until a key has not been pressed for the time defined by the set point. Password Timeout Use the left- and right-arrow keys to select the position of the flashing cursor. Use the up- and down-arrow keys to select password characters. Press ENTER. When the correct password is entered, a flashing cursor is displayed and the set point can be changed. Use the up- and down-arrow keys to change a set-point update-field character, and use the left- and right-arrow keys to move between characters. Press Enter to update the set point, or press Esc to exit the display. TRIP RESET RESET is a hot key to the Trips and Alarms display, except during set-point entry. Trip messages must be individually selected and reset. All trips are simultaneously reset by a digitalinput reset, or with a communications-network command.

16 14 EMERGENCY THERMAL RESET Emergency Thermal Reset (ETR) is available in the Messages/ Emerg 1 t Reset menu. ETR sets Used I t to 0%, resets starts-perhour variables, and disables PTC and RTD trips. Program access is required. CAUTION: Temperature protection is not automatically re-enabled after an ETR. MPU-3/MPU-16A COMPATIBILITY An MPU-3 can directly replace an MPU-16A with minimal or no wiring changes. The MPU-16Aupper terminal block can be plugged directly into an MPU-3. If a switch was connected to the MPU-16A program enable terminal, the switch will not function with the MPU-3. This is usually not a problem since the MPU-3 set points are password protected. If the MPU-16A analog output was used, ensure that the MPU-3 analog output switch is set to the S (Self Powered) position. Although MPU-3 terminals 1 to 1 have been rearranged to provide a third relay output (terminals 1, 4, and 9), the MPU-16A lower terminal block can be safely plugged into the equivalent MPU-3 terminal locations. CAUTION: The keying plug installed in position 9 of the MPU-16A lower terminal block must be removed before the terminal block can be plugged into the MPU-3. Use a dental pick, awl or similar pointed tool to remove the keying plug. If the keying plug is difficult to remove, use the terminal blocks supplied with the MPU-3. A TERMINAL BLOCK WITH A KEYING PLUG WILL DAMAGE THE MPU-3. If the MPU-3 does not power up, ensure that L1 is connected to terminal (not terminal 1) and L/N is connected to terminal 3 (not terminal 4). If the duplicate L1 and L terminals on the MPU-16Aare used to power another device, disconnect the outgoing L1 and L leads and power the next device directly from the power source. (SETUP Continued) Phase Loss Phase Reverse Starts/Hour Trip Delay Alarm Action Alarm Delay Alarm Action RTD Temperature RTD Local Temp RTD Local RTD Local Trip Level RTD Local Alarm Action RTD Local Alarm Level RTD Modules 1 to 3 RTD#1to#8 Name Type Disable Pt100 Ni100 Ni10 Cu10 Number of Starts/Hour 1to10 Time Between PTC Temperature Alarm Action [s] (SETUP Continued next page) 19

17 18 SETUP PROTECTION (3) Overload Model Type Overcurrent Aux. Overcurrent Trip Level Trip Delay NEMA Model K-Factor Model K-Factor LR Current LR Time Cold LR Time Hot Service Factor Cooling Factor I²t Inhibit Trip I²t Inhibit Alarm I²t Inhibit Level I²t Alarm Action I²t Alarm Level I²t Reset Type Normal Auto Multiple Motor Sequence Earth Fault Jam Unbalance Undercurrent Trip Level Trip Delay Alarm Action Alarm Level Alarm Delay (SETUP Continued next page) MPU-3 MENU MAP MAIN MENU METERING CURRENT I a I b I c UNBALANCE + Sequence - Sequence Unbalance EARTH LEAKAGE Measured (Ict) Calculated (3I 0 ) Active Protection THERMAL CAPACITY Used I²t Trend I²t Reset Time Trip Time Inhibit Time Starts Available Notes: (1) List indicates possible trips and alarms. Password required. (3) Lists do not match MPU-3 menu order. (4) Locked when the motor is running. Legend: Enter numeric [s] Enter string [E/D] Enable/Disable TripAction: Disable; ; ; Alarm Action: Disable; ; ; [Y/N] Yes/No [EA] Ethernet Address 15 RTD MODULE TEMPERATURE Summary (Max/Min) Stator (METERING Continued next page) RTD Module 1 to 3 RTD#1to8 RTD Identification Function Temp./Messages

18 16 (METERING Continued) LOCAL SENSOR PTC/RTD Reading I/O STATUS Digital Input State Output Relay States SYSTEM STATUS Date and Time Motor State (Stop/Run/Start) ETR State Measured Frequency NETWORK STATUS MESSAGES TRIP AND ALARM (1) Overcurrent Trip Aux. Overcurrent Trip Overload Trip/Alarm Earth-Fault Trip/Alarm Unbalance Trip/Alarm Jam Trip/Alarm Undercurrent Trip/Alarm PTC/RTD Local Trip/Alarm Phase Loss Trip/Alarm Phase Reverse Trip/Alarm Digital Input RTD M1 to 3 #1-8 RTD M1 to 3 #1-8 RTD M1 to 3 Comm. Trip RTD M1 to 3 Comm. Alarm RTD Sensor Trip/Alarm Display Comm. Trip (MESSAGES Continued next page) (MESSAGES Continued) NV Ram Error Diagnostic Error Comm Trip/Alarm I²t Start Inhibit Trip/Alarm Starts/Hour Trip/Alarm EVENT RECORD Record Number Date/Time Source: Start/Trip/ETR Trip: Trip Source Currents: I a, I b, I c, I g Unbalance Start Time Used I²t % RTD Temperatures STATISTICS Trip Counters Overcurrent Aux. Overcurrent Overload Earth Fault Unbalance Jam Undercurrent Phase Loss Phase Reverse EMERG I²t RESET Hours Running Hours Reset I²t Memory Re-enable Temp. Digital Input RTDM1#1to#8 RTDM#1to#8 RTDM3#1to#8 NV RAM PTC Temperature RTD Module Comm RTD Sensor Network Comm Display Comm 17