Asco Series 300 - User Manual

Operator’s Series 300
Manual Generator Paralleling System
Call 1 800 800-2726 (ASCO) for sales or service
Florham Park, NJ 07932-1591 USA
+Before reading please note the following :
DANGER is used in this manual to warn of a
hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING is used in this manual to warn of a
hazardous situation which, if not avoided,
could result in death or serious injury
.
CAUTION is used in this manual to warn of a
hazardous situation which, if not avoided,
could result in minor or moderate injury
.
Figure 1: (2)-Generator System
All service to this equipment should be provided
only by a qualified service technician. No work
should be attempted without complete
documentation, including but not limited to
drawings, manuals, and interconnect
information.
For service and support, call 800-800-ASCO (800
800 2726) or email customercare@asco.com
Rating Label
Each ASCO Series 300 Power Control System
(PCS) contains a rating label to define the loads
and withstand/closing ratings. Refer to the label
on the unit for specific values.
For a non-redundant system where the load
current is more than one generator’s full load
current and the generators are paralleled to
provide more power to the load, the main bus
current rating must be equal to or greater than the
sum of the two generator’s full load amps.
If the application is a redundant system where the
load current is equal to or less than the full load
amps of one generator and the generators are
being paralleled for redundancy, the rating must
be equal to or greater than the full load current of
the biggest generator. In addition, the output
circuit breaker must have proper overcurrent
protection, equal to or less than the main bus
rating label.
Do not exceed the values on the rating label.
Exceeding the rating can cause personal injury
and/or serious equipment damage.
381333-453

Summary

Safety and General Information

Hazard Level Definitions

Explains hazard levels: DANGER, WARNING, and CAUTION.

Manual Maintenance Operations

Safety for Manual Operation

Emphasizes safety, Lock Out/Tag Out procedures before manual operation.

Operating Modes and Emergency Scenarios

Emergency Mode Functionality

Details the system's behavior during an emergency power event.

Load Control and Management

Block Load Control Logic

Explains how loads are managed in priority blocks and step time delays.

Load Shedding and Bypass;Reset

Describes manual load shed bypass and reset procedures.

System Features and Bus Optimization

Bus Optimization Functionality

Details how the system automatically adds loads based on capacity.

Load Demand and Generator Management

Load Demand Mode Operation

Explains how load demand controls generator usage for efficiency.

Generator Control Switch and Synchronization

Engine;Generator Control Switch Operations

Explains the functions of Lockout/Reset, Off/Cooldown, Automatic, and Test modes.

Synchronizing Mode Switch (SMS) Functions

Describes how the SMS switch controls synchronization.

Operator Controls and OIT Functions

Engine Malfunction and Emergency Stop

How to handle engine malfunctions and emergency stops.

Operator Interface Terminal (OIT) Navigation

OIT Login and Menu Navigation

OIT Screens for Status and Monitoring

Factory Default Parameter Settings

Asco Series 300 Specifications

General

Brand	Asco
Model	Series 300
Category	Inverter
Language	English