Series 7000 Frequently Asked Questions Features How do I access the event logs? How do I set the transfer time delays? How do I communicate with the ATS? How do I prevent or inhibit the ATS from transferring? How do I set the engine exerciser? Is the clock engine exerciser accurate? What is an in-phase monitor? How do I specify the ATS? What auxiliary features does the ATS offer? How does the engine exerciser work? Where can I get load shed signals? Where can I get pre-transfer and post-transfer signals? Wh
Product Installation Can the ATS switch between different voltages? How do I configure the ATS controller? How do I install an ATS? What is the maximum length of the control line? Where can I get the weight and dimensions of the ATS? What size cable or wire can I use for the power connections of the ATS? When do I need to connect the neutral? How do I specify the type of neutral? What is the WCR of the ATS? Which breakers are tested with an ASCO transfer switch? Service Can I modify the voltage rating of t
Features How do I access the event logs? To access the event logs: Normal OK 1. Go to the Group 5 controller and press the ESC button until the display shows Load on Normal <<< 2. Press Enter/Save Settings, then Menu Scroll until the display shows 3. Press Enter/Save Settings, then Menu Scroll to view the events.
How do I communicate with the ATS? To communicate with the Series 7000 group 5 controller you will need accessory 72E communication module. With this you can access the group 5 controller to communicate through MODBUS RTU, MODBUS TCP protocols at 9600 and 19.2K-baud rates. For a detailed discussion regarding Communication products and application, go to Communications Product s F AQ ’s.
How do I configure the inhibit transfer signal? Inhibit features are included in the Factory Selectable Features program of the Group 5 controller, therefore it cannot be modified by the end user. These optional accessories are usually specified by the customer to be included in the ATS’s upon ordering. If requested for ATS Site, contact ASCO Services by Dialing 1-800-800-ASCO to arrange a service call.
How do I set the engine exerciser? To set the exerciser, follow the procedures below:
Is the clock of the engine exerciser accurate? The engine exerciser clock is moderately accurate. If the generator exercises out of schedule check the following: Verify on the event log that the event recorded was an engine exercise. The PRESENT DATE/TIME setting under the engine exerciser menu should be synchronized with the present date and time. The event of engine exercise should fall within any of the enabled P1 to P7 settings. The generator should not have its own exerciser program.
How do I specify an ATS? To specify the ATS, just follow the catalog no. format below: NOTE: For the series 7000 suggested specifications click here.
What auxiliary control features does the ATS offer? Click here to view the list of optional control features that the ATB offer. Where can I get load shed signals? A load shed signal is provided by an external source. It is then accepted through accessory 30A or 30B as an add-on circuit that matches the generator capacity with the load. It sends a signal to the ATS to transfer the load back to the alternate source regardless of its availability.
Where can I get pre and post transfer signals on the ATS? Accessory 31Z is a selective load disconnect that sends a pre- transfer and post transfer signal. The length of the pre and post transfer delays can be set to 0-5 minutes. Refer to your units wiring diagram for reference to the correct points on the customer block. You can get pre-transfer and post transfer signals from an accessory 31Z (Selective load disconnect contacts) if the transfer switch came with the feature.
Figure B. Acc. 18B and 18G source availability contacts terminal connections Where can I get switch position contacts? Accessory 14 is an additional auxiliary contact to indicate switch position. Two sets are standard (14A/14B). Specify total number of sets if more are required.
Figure C. Acc. 14A and 14B auxiliary contacts terminal connections Where can I send remote transfer signals? Feature 17 or a “remote transfer to emergency feature” is a terminal provision for a remote contact that closes to signal the automatic transfer to emergency and stay in that position while the contact is kept closed. The transfer switch will retransfer to normal if emergency fails and normal source is available.
Operation Can I adjust the sensing of the controller? Yes. Refer to the adjustments listed below (Refer to the Group 5 User's Guide for more information).
How do I change the password? To change the password, follow the steps below. Normal OK 1. Go to the Group 5 controller and press the ESC button until the display shows (with normal Load on Normal power available and the load connected to normal) SETTINGS 2. Press Enter/Save Settings. Then press Menu Scroll until the display shows 3. Press Enter/Save Settings. Then pressMenu Scroll until the display shows 4. If the password below shows “****”, you’ll need to set DIP switch actuator no.
Is there a preferred source? Yes, normal (utility) source is considered preferred. What is the operating temperature of the ATS? The operating temperature of the 7000 series ATS is 25ºC/ 77ºF. Others Literature Request Click here to view the literatures. Parts Inquiry For parts inquiry you may log on at http://www.ascoparts.
Product Installation Can the ATS switch between different voltages? No. The ATS is designed to get the supply from the source that the transfer switch is connected to. The switch should get the same voltage coming from Normal and Emergency since the same supply is fed to the solenoid operator (which has a specific voltage rating). This is the standard design of a 7ATS.
How do I install an ATS? To install the ATS you just need to follow the installation procedures on the Operator’s Manual and the Outline and Mounting Diagrams.
Outlines and Mounting Diagrams
What is the maximum length of control line run? The maximum length of a control line run depends on what type and size of control wire is used. The NEC requirements still rule on this case. Where can I get the weight and dimensions of the ATS? Click here to get the standard shipping weights of the ATS. For more detailed info, refer to the Outline and Mounting Diagrams What size cable or wire can I use for the power connections of the ATS? Click here for the recommended wire sizes.
How do I specify the type of neutral? A Solid Neutral means that the system neutral conductors (load, emergency and utility) are solidly bonded to a common lug and a copper plate. The connection of the 3 neutral conductors is fixed to the common lug. It is denoted by an A2 (2 pole) or A3 (3 pole) in the catalog. A Switched Neutral means that the load neutral conductor connection is switched between the emergency neutral and the utility neutral.
If the display doesn’t work. If there are extensive signs of burns on the PC board. If the OP and NR relays are damaged.
What does this alarm message mean? Below are the definitions of the alarm messages that pop-up on the controller display.
What should I do if the indicator lights are faulty? Check the wires to the door controls for any signs of burns. Check if there is voltage across the pilot lamp terminals. o If there is no supply, disconnect the gray plug on J10 of the Group 5 PC board and reconnect it again to ensure proper fitting. o If there is voltage across the pilot lamp terminals, order a replacement door mounted control. If there is none, check the control panel for possible errors.
Why won't the generator shut-off? Normal is unavailable (Check if the right voltage is supplied on the Normal lugs or if Normal Accepted light is ON) The generator is in cool down mode. Wait until the cool down timer times out. The selector switch for manual engine start is set to run. Switch it to AUTO. The TS (AUX1) auxiliary contact for engine start is stuck-up. Contact a service technician to calibrate the cam switches. The NR relay is damaged. Replace the Group 5 controller.
Wiring Where do I connect the engine start wires? The engine start contacts are also known as feature 7 and 8. Feature 7 – Contact that closes to send an engine start signal Feature 8 – Contact that opens to send an engine start signal Refer to the transfer switch wiring diagram for the terminal connections. To request for a wiring diagram, take note of the Serial number, BOM number, and the Catalog number of the transfer switch and call 1800-800-ASCO (2726) option 33.
