ASCO POWER TECHNOLOGIES Series 300 Operator'S Manual Download Page 1

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381333–122 B

ASCO POWER TECHNOLOGIES L.P.

50 Hanover Road, Florham Park, New Jersey 07932 USA

www.asco.com

Operator’s

Manual

Series 300

Automatic Transfer Switches

G design 1000 through 3000 amps

1000, 1200, 1600 amp. sizes

DANGER is used in this manual to warn of high

voltages capable of causing shock, burns, or death.

WARNING is used in this manual to warn

of possible personal injury.

CAUTION is used in this manual to warn

of possible equipment damage.

Refer to the outline and wiring drawings provided

with ASCO Series 300 ATS for all installation details.

2000 amp. size

An experienced licensed electrician must install the ATS.

TABLE OF CONTENTS

section

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . .

SEQUENCE OF OPERATION

. . . . . . . . . . . . .

TESTING & SERVICE

. . . . . . . . . . . . . . . . . . . .

ADJUSTMENTS

. . . . . . . . . . . . . . . . . . . . . . . . .

CONTROL FEATURES

. . . . . . . . . . . . . . . . . . .

INDEX

back cover

. . . . . . . . . . . . . . . . . . . . . . . . .

Summary of Contents for Series 300

Page 1: ...ble of causing shock burns or death WARNING is used in this manual to warn of possible personal injury CAUTION is used in this manual to warn of possible equipment damage Refer to the outline and wiring drawings provided with ASCO Series 300 ATS for all installation details 2000 amp size An experienced licensed electrician must install the ATS TABLE OF CONTENTS section INSTALLATION 1 SEQUENCE OF O...

Page 2: ...ing Amperes Voltage Controller Enclosure B switched 1 standard G type 4 C type 1 F type 3R L type 12 3 three Ø 2 single Ø D 220 C 208 E 230 K 415 M 460 J 400 L 440 N 480 F 240 H 380 Q 575 P 550 R 600 2000 1600 1000 1200 blank solid blank open type type 4 12 enclosures are available only for 1000 1200 1600 amp sizes 1X if accessories ordered 3000 2600 terminal block TB for engine start and switch p...

Page 3: ... nished with this switch and mount the Series 300 according to details and instructions shown on diagram Auxiliary Cable Box for 1000 2000 amp Anauxiliarycablebox isrequired ifthe powercables donot enter the enclosure directly adjacent to the terminal lugs for example if all power cables enter the top or bottom Order ASCO part no 609027 if needed Do not route the power cables along the sides of th...

Page 4: ...n on the wiring diagram provided with this Series 300 Automatic Transfer Switch Make the necessary auxiliary connections by referring to Section 5 Control Features Harnesses The transfer switch is connected to the left side of the controller by a plug in harness two plugs TB Terminal Block field connections accepts wire range 22 12 AWG Engine Starting Signals 5 amps 32 V DC 5 amps resistive 28 V D...

Page 5: ...closure door Locate and remove the maintenance handle and hub stored on the transfer switch frame Theninstall thehub ontothe centeroperator shaft and insert the handle firmly into the hole in the side of the hub spring fully compressed See Figure 1 3 and 1 4 and Table B 2 If the transfer switch is closed on Normal window shows CLOSED grasp handle firmly and turn it counterclock wise The transfer s...

Page 6: ...pond only to the rated voltage specified on the Transfer Switch nameplate 1 Close the normal source circuit breaker The Transfer Switch Connected To Normal and the Normal Source Available lights should come on 2 Use an accurate voltmeter to check phase to phase and phase to neutral voltages pres ent at the transfer switch normal source terminals 3 Close the emergency source circuit breaker Start g...

Page 7: ...rting control in the automatic position 1 The normal source must be available and the generator must be ready to start Check that the Normal Source Available light is on 2 Press and hold the Transfer Switch Test button until the engine starts and runs This should happen within 15 sec TRANSFER SWITCH TEST 3 The Emergency Source Available light should come on 4 The transfer switch should transfer to...

Page 8: ...immediately the sensor may accept it as soon as NR relay drops out When the emergency source is accepted by the sensor relay ER begins its timing cycle transfer to emergency delay ER relay is provided with an adjustable 0 to 5 minutes time delay on pickup to delay transfer of the load to the emergency source For immediate transfer press Bypass Time Delay button ER relay energizes the TS coil is en...

Page 9: ...e harness disconnect plugs are furnished for repair purposes only and should not have to be unplugged If the controller must be isolated follow these steps carefully Disconnecting the Plugs Do not unplug the controller until step 1a or 1b below is completed 1 Observe the position of the transfer switch a If the transfer switch is in the Normal position place standby engine starting control in the ...

Page 10: ...inals EA and EC or EL1 and EL2 for 2 pole switches These are factory settings Transfer switch does not transfer the load to normal source when normal returns or when TRANSFER SWITCH TEST button is released Wait for Retransfer to Normal Delay 1 sec to 30 min to time out For immediate re transfer press BYPASS TIME DELAY button If Motor Load Transfer is active wait for in phase condition see below Vo...

Page 11: ...ding DIP switch actuators Any change in these settings may affect the normal operation of the automatic transfer switch This change could allow the load circuits to remain connected to a low voltage source Table 4 2 Voltage and Frequency Settings Shaded DIP switches are standard factory settings DESCRIPTION LABELS SETTING of nominal S1 DIP DESCRIPTION LABELS SETTING FACT SET ADJ RANGE S1 DIP SWITC...

Page 12: ...ar pointed tool to slide the switch actuators left or right so they match the il lustration next to the setting left off right on Recheck the setting See Figure 4 4 7 Install the cover on the controller by hooking it on the left side and latching the right side 8 Reconnect both harness plugs to the controller by aligning and pressing straight in until latches click Close the enclosure door 9 Close...

Page 13: ...oldown Press to cancel an active exercise period stops generator Press and hold for 5 sec or until status light blinks rapidly to set exercise period immediately and every week hereafter generator starts Figure 5 1 Operator panel pushbuttons and light Select below either Exercise without Load or Exercise with Load according to the setting of DIP switch S1 actuator 8 The load transfers from the Nor...

Page 14: ...uator 5 on 5 Exercise without Load Actuator 8 off 8 Exercise with Load Actuator 8 on 8 Shaded DIP switches are standard factory settings The Accessory 11CD Programmable Engine Exerciser incorporates a 7 day time base and therefore each day of the week can be uniquely programmed to test the engine generator set either with or without load The proper controller settings must be made to determine whe...

Page 15: ... Exerciser display and push buttons program button 1h button hour button minute button day button reset button on off button Changing or Checking Time Programs By operating the Prog button the individual commands as programmed can at any time be brought consecutively into the display for revision or checking Revisions are accomplished by programming over the existing programs using the steps at th...

Page 16: ...er Time delay between the load disconnect control signal and initiation of transfer is set on the controller with DIP switch S2 actuators 6 7 8 as shown below Delay Before Transfer LD TDBT S2 DIP SWITCH 0 disable Actuator 7 on Actuator 8 on 8 7 3 seconds Actuator 7 on Actuator 8 off 8 7 10 seconds Actuator 7 off Actuator 8 on 8 7 20 seconds Actuator 7 off Actuator 8 off 8 7 Shaded DIP switches are...

Page 17: ...This optional accessory is available factory installed or in kit form Turn the thermostat s dial to required setting as shown dial turn counterclockwise to lower temperature turn clockwise to raise temperature thermostat AVAILABLE KITS FROM ASCO Controls Description Accessory Kit Programmable Engine Exerciser 11CD K601111 Serial Communication Module 72A K601110 Strip Heater Accessory 44 Descriptio...

Page 18: ...ration of 1 1 warning 1 1 L labels engine starting contacts 1 2 inputs outputs 1 2 rating cover lights 1 4 5 1 load disconnect feature 5 4 lubrication 3 1 M maintenance preventive 3 1 manual load transfer 3 2 warning 3 2 manual operation 1 3 illustration of 1 3 warning 1 3 motor load transfer feature 5 3 N nameplate cover O operation electrical 1 4 manual 1 3 illustration of 1 3 warning 1 3 sequen...

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