ASCO Series 230 C2000 Controller
Operational Control Features and Status Indicators
Operation
Status Indicator
Mode
Indicator
Alarm
Indicator
Source II Available
Indicator
Display
Source I Available
Indicator
Center-off Position
Indicator
Source I Accepted
Indicator
Key Pad
Source II Accepted
Indicator
Standard Setting Features

Rated Voltage: 120V, 208V, 220V, 230V, 240V, 380V, 400V, 415V.

Rated frequency: 50Hz, 60Hz

Phase: L1L2L3, L1L2L3N, LN, L1L2, L1L2N

Control Mode: Source Priority ,,No Source Priority, Remote Control, Manual Control

Center-off position protection Setting

Phase rotation order Setting: NO, ABC, CBA

UnBalance Setting: NO, 8%,15%,25%

Priority Source Setting:

Language Setting: English, Chinese

Time and Date Setting

LCD Contrast Setting: 0~32

Communication Setting, default Setting (9600,8,E,1)

Log Event
I Source Priority, II Source Priority
Voltage & Frequency Sensing

Both source I and source II have the same setting as follow:

Drop-out voltage is set as 70% ~ 98% of nominal,

Drop-out frequency is set as 85% ~98% of nominal, and pickup is 90%~100%, Over is 102% ~
pickup is 85~100% , Over is 102%~120%.
105%.

When the over trip is enable, the over voltage function is active.
Time Delays

T11: 0~3S, Time delay applied to Source I.

T12: 0S~5min, Time delay applied when transferring from Position I to Position II.

T01:0~3S, Time delay applied to Source II.

T21:0S~30min, Time delay applied when transferring from Position II to Position I.

T02: 0~5S, Time delay applied to the center-off position O.

T03: 0~60min, Time delay to turn off the generator and keep the generator running at no load
for some time before shutting / cooling down.
Standard Control Contacts
Port
Port label
Port attribute
LLP
RLY
30Vdc/125Vac,
0.5A≥Rating
current≥5mA
Normally Closed (NC) &
Normally Open (NO) relay
outputs. When the load
voltage drops to 30% of
the rated voltage or load
voltage drops to 50Vac,
the NC relay output will
change to Open, and the
NO relay output will
change to Closed.
DC IN
24VDC±15％
DC 24V external Power
supply.
30Vdc/125Vac,
0.5A≥Rating
current≥5mA
Transfer switch status
relay output. Normally
open. When the
controller alarm goes on,
the relay contact closes.
30Vdc/125Vac,
0.5A≥Rating
current≥5mA
Transfer switch position
status relay output.
Normally open. When
switch transfers to
center-off, the relay
contact closes.
1
2
X3
3
4
5
24V24V+
1
ALM
2
X4
3
DO1
4
Pin Definition
Port
Port label
Port attribute
5
30Vdc/125Vac,
DO2
6
0.5A≥Rating
current≥5mA
7
DO3
8
30Vdc/125Vac,
0.5A≥Rating
current≥5mA
9
GEN
10
30Vdc/125Vac,
0.5A≥Rating
current≥5mA
11
12
485+
13
485-
14
DGND
15
PGND
16
+
Baud rate
485
PORT
FIRE
17
-
9600/19200/38400bps，
The max connection 32
units.
24Vdc±30%,
The polarity must be
properly identified, the
wrong polarity
connection, the fuction
should be disable.
Normally Closed (NC) &
Normally Open (NO)
engine relay outputs.
During Source 1 Priority
mode, when the Source 1
loses power or has some
abnormality, the NC relay
output changes to open.
And the NO relay output
changes to closed.
Half-duplex 485 interface,
2 line mode, Additional
digital grounding and
protect grounding ports are
available if needed.
There should be terminal
resistence between 2 lines
at the end of the star
connection.
If the Fire control signal is
coming in, the transfer
switch will move to
center-off position and an
alarm will sound. The
alarm will continue to
sound until the user
physically presses any key
on the key pad.
Passive Digital input
Used during Remote
operation mode. When
signal input is closed, the
switch will transfer to
Source I.
20
21
Transfer switch position
status relay output.
Normally open. When the
switch transfers to Source
II, the relay contact closes.
Passive Digital input
19
DI6
Transfer switch position
status relay output.
Normally open. When the
switch transfers to Source
I, the relay contact closes.
Used during Remote
operation mode. When
signal input is closed, the
switch will transfer to
center-off position.
18
DI5
Pin Definition
Port
Port label
Port attribute
22
Passive Digital input
23
DI7
Pin Definition
Used during Remote
operation mode. When
signal input is closed, the
switch will transfer to
Source II.
Remote Control Features
Terminal provisions for connecting:

The controller receives the external order to transfer from one source to another source when
the operating mode is set as remote control.

The controller still detects the voltages and frequencies of both sources, but, it will not transfer
to another source even though the current source is invalid.

The RUN led will blink slowly to indicate current remote control mode.