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GE Zenith Controls
ZTG/ZTGD Series Transfer Switches
40-3000 Amps
70R-1000D
11/04
Operation and Maintenance Manual
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Authorized Service For GE Zenith parts and service, call: (773) 299-6600 Table of Contents Page Page Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Sequence of Operation . . . . . . . . . . . . . . . . . . . . . .21 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Standard Transition . . . . . . . . . . . . . . . . . . . . .121 Equipment Inspection and Storage . . . . . . . . .13 Delayed Transition . . . . . . . . . . . . . . . . .
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Safety / Installation DANGER HAZARDOUS VOLTAGE (Can Cause Severe Injury or Death) Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. The safe operation of your switch is GE Zenith’s focus. 2. Verify that all cabled connections are The proper storage, installation, operation and mainte- correct and that phase rotation of both sources nance will help increase the life of the switch. match. 3. Check engine start connections. 4. Verify the co
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Installation (cont’d) DANGER HAZARDOUS VOLTAGE (Can Cause Severe Injury or Death) Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. Power Connections SPREADER BAR GE Zenith transfer switches are supplied with UL listed 45° solderless screw type terminals as standard for the H Source 1, Source 2 and Load power connections. Table 1 lists the number and sizes of cable lugs supplied as standard for each switch amp rating. Connect the Source
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Installation (cont’d) DANGER HAZARDOUS VOLTAGE (Can Cause Severe Injury or Death) Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. Control Connections Figure 2 Clock Program Backup Battery Remove protective Engine Start strip to enable clock Connections functions Network Connector Input/Output Connectors to I/O Modules To R/T Box To Power Panel A complete information package is furnished with The terminals are clearly identified by a la
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Installation (cont’d) DANGER HAZARDOUS VOLTAGE (Can Cause Severe Injury or Death) Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. 4 1 P Relay 5 2 E (Engine Start) Contact rating is 10 Ampere at 120VAC 6 3 or 28VDC Gold plated Figure 3 Engine Start Control Connections The engine-start terminals are clearly identified by a NOTE: The controller will illuminate Source 2 label on the microcontroller backplate. In the case of Available LED w
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Installation (cont’d) Initial Energization (cont’d) After all options and accessories are checked and veri- 5. Close the External (up-stream) Source 2 line fied, follow these steps to set up the ATS. Refer to MX150 circuit breaker. display Figure 5. The annunciation LEDs illuminate to 6. Start the engine generator in MANUAL mode. indicate (1) source availability, (2) ATS position, and (3) NOTE: When the voltage and frequency MX150 control function (timing). reach preset values, the Source 2 Ava
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MX150 Microprocessor Controller MX150 Controller Consists of two major assemblies: Engine Start Relay P I. The Microprocessor contains the following: I/O Interface MX150 Board A. MX150 Board - Customer Input and Output (I/O) for system interface. Located on the left hand side of the back of the unit (see figure 6) 1. I/O accessories that can be found here are: a. Engine start relay P output b. Pre-Signal to transfer T3, W3 and Battery Strip UMD output (optional) and Access c. Transfer Inhibit Q
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MX150 Microprocessor Controller (cont’d) LCD & Keypad These options are accessible through the LCD and no changes can be made without entry of the access code. keypad (see figure below). To become familiar with the The factory set six-digit access code is located on a white options loaded into a particular unit, scrolling through label on the back of the unit (see figure 9 pgs. 17-19). the SET and CFG menu will show the descriptions of the options (see pages 17). These menus are the very The MX1
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User Setting for Voltage & Frequency Source 1 Voltage "Restore" Voltage "Fail" Factory Default: 90% Factory Default: 80% This adjustment determines the minimum acceptable This adjustment determines the low voltage threshold. voltage required to transfer to Source 1. Adjust via the SET menu. Range is 75% to 98% in 1% Adjust via the SET menu. Range is 85% to 100% in increments (see page 18). 1% increments (see page 18). "Fail" must be a minimum of 2 % below "Restore" Once satisfied, the T timer w
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Std. Features, MSTDG Option Pkg. (cont’d) EL/P Event Log: Sequentially Numbered Log In the event that the Sources do not come within 7 of 16 events that track electrical degrees of each other within 60 seconds, the date, time, reason and action taken unit will display the message: SYNCH CHECKING and System Data: Total Life Transfers (N2P) will allow the user to BYPASS. If the BYPASS button is Days Powered Up pressed, the unit will display the message: WARNING Total Transfers to S2 MAY CAUSE DAMA
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Standard Features, MEXEG Option Pkg. In addition to the features listed under the VI MSTDG Option Package, this enhanced package Voltage Imbalance (Three Phase) includes the following features: For a three phase source, this feature monitors phase voltage ratios based on a selected range within a selected time window. Should any phase fall below the selected lower window limit or exceed the selected A3 higher window limit within the selected time frame, Additional Auxiliary contact: closed when
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Optional Accessories 6A M82 Test Switch, Maintained / Momentary Digital Meter w/Display of Amps, Watts, Volts, Frequency, KVA, KVAR, PF, etc. 6AP Test Switch, Maintained / Momentary, utilizing Keypad M83A Digital Meter w/Diplay of Amps, Watts, Volts, Frequency, KVA, KVAR, PF, etc. Plus THD capability A1 w/Modbus. Auxiliary Contact, operates on Source 1 line failure. T3/W3 A1E Elevator Pre-Signal Auxiliary Contacts: Open 0-60 Auxiliary Contact, operates on Source 2 line failure. seconds prior to
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How to Set the System Clock How to Set the System Clock 8. Press SAVE (this will enter this value and move cursor to minutes). Set System Clock, time and date 9. Use the up and down keys to change the minutes. · If the clock is not set, the display will show 10. Press SAVE (this will enter this value and move SET SYSTEM CLOCK on the second line cursor to month). of the S1 OK screen. 11. Use the up and down key up to change the month. · The S1 OK screen will show time (hours and 12. Press SA
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CDT One Event Timer Exerciser (cont’d) How to Initiate CDT Exerciser and to start an How to Bypass the next exercise event and Keep exercise cycle every 1, 7, 14, or 28 days the rest of scheduled events unchanged From S1 screen 1) Press Test 1) Press TEST 2) Press MORE 2) Press MORE 3) Press BYPASS EXER 3) Press START TEST TIMER (to initiate Test). To re-institute the next exercise event back, • If the CDT Exerciser is Factory configured for a press CANCL BPASS Load Exerciser, the Controller wi
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CDP Clock Exerciser Load / No-Load Clock Exerciser 6. Cursor is indicated as a line under character to Allows the Generator to start and run unloaded or to be changed. Change values with up and down keys. simulate a power failure, start Generator and run under Press SAVE after each entry to save value and to load. Can be configured by the end user for 1, 7, 14, 28, move to the next value to be changed. or 365 day cycles. 7. Press BACK when complete. • A total of 7 independent No Load exercise
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MX150 User Setup - CFG Menu Turn options ON or OFF via S1 OK keypad through the CFG menu 01: 50 FRI 31 MAY 2003 Enter six digit access code MORE TEST (The factory assigned six-digit access code is located on the back of the controller) 1 VAB = ___ 2 VAB = ___ 4 1 WARNING 5 2 Controller Inputs must be relay Isolated. 1 VBC = ___ 6 3 A2 A1 Engine Start Relay (De-Energized) 14 11 12 RELAY VCA = ___ (-) (+) Network Communications COM MORE CFG SET ESC (Optio
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MX150 User Setup - SET Menu S1 OK Change adjustable values 01: 50 FRI 31 MAY 2003 through the SET menu. MORE TEST Enter six digit access code (The factory assigned six-digit access code 1 VAB = ___ 2 VAB = ___ is located on the back of the controller) VBC = ___ VCA = ___ MORE CFG SET ESC 4 1 WARNING 5 2 Controller Inputs must be relay Isolated. 1 6 3 SET A2 A1 Engine Start Relay (De-Energized) 14 11 12 (-) RELAY (+) USER SETUP Network Communications COM (Option) J2-3
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MX150 User Setup - System Info View System Data S1 OK 01: 50 Enter six digit access code FRI 31 MAY 2003 (The factory assigned six-digit access code MORE TEST is located on the back of the controller) 4 1 WARNING 5 2 Controller Inputs must be relay Isolated. 1 6 3 A2 A1 Engine Start Relay (De-Energized) 14 11 12 (-) RELAY (+) Network Communications COM (Option) J2-3 Customer Input J2 N.O N.C Voltage * 1 PROG 1 To 2 J2/J4 PROG 2 Inputs 3 GRD (Input Sink) 4 5 Controller Outputs have "L
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Testing NOTICE A periodic test of the transfer switch under load conditions is recommended to insure proper operation. (See National Electric Code articles 700 and 701) ATS Testing Start generator and verify proper voltage, frequency and phase sequence (match to Source 1). Shut down gen set and place in SYSTEM TEST Auto. Complete the visual inspection of the transfer switch, and FAST XFR NO close the cabinet door. MORE TEST LOAD XFR Initiate the test by pressing the TEST button on the LCD keyp
