SECTION 4 ADJUSTMENTS

4 --- 1

Time Delay Adju stment

Standard time delays are set to customer specifications

(if none specified, standard factory settings are used).

Tochange a setting, follow procedure on page 4-2. Use

Table4-1 as a guide to time delay values and their corre-

sponding adjustment DIP switch or potentiometer.

Table4-1.TimeDelaySettings

DESCRIPTION LABELS FACTORY
SETTING
ADJUSTMENT
RANGE
S3 DIP
SWITCH
ADJUSTMENT
POTENTIOMETER
Override Momentar
y
T
D
E
S
3
s
e
c
o
n
d
s
1second Actuator 1 on
1
O
v
e
r
r
i
d
e
M
o
m
e
n
t
a
r
y
NormalSource Outages
T
D
E
S
3secon
d
s3seconds Actuator1 off
1
—
T
r
a
n
s
f
e
r
t
o
E
m
e
r
g
e
n
c
y
TIMER 0 minutes 0to5
P
2
T
rans
f
er to
E
mergency
T
I
M
E
R
N/E
0
m
i
n
u
t
e
s
(full ccw)
0
t
o
5
minutes
—
—
P
2
Override Momentary
Emergency S. Outages —4seconds non-adjustable — — —
R
e
t
r
a
n
s
f
e
r
t
o
N
o
r
m
a
l
TIMER 30 minutes 1secondto
P
1
R
etrans
f
er to
N
orma
l
T
I
M
E
R
E/N
3
0
m
i
n
u
t
e
s
(full cw)
1
s
e
c
o
n
d
t
o
30 minutes
—
—
P
1
Unloaded Running
(Engine Cooldown) —5 minutes non-adjustable — — —

Sensor Adjustments

Voltageand frequency sensor pickup and dropout points

are set to customer specifications (if none specified,

standard factory settings are used). Tochange a setting,

followprocedure on page 4–2. UseTables4-2 and 4–3 for

settings and correspondingDIP switch actuators.

Any change in these settings may affect the

normal operation of the automatic transfer

switch.Thischange could allow the load circuits

to remain connected to a low voltage source.

Table4-2. Voltage and Frequency Settings. ( ShadedDIP switches are standard factory settings).

D
E
S
C
R
I
P
T
I
O
N
L
A
B
E
L
S
S
E
T
T
I
N
G
%ofnominal S1 DIP
D
E
S
C
R
I
P
T
I
O
N
L
A
B
E
L
S
S
E
T
T
I
N
G
FACT. SET ADJRANGE
S
1
D
I
P
SWITCH
P
U
/
N
P
i
c
k
u
p
9
0
%
95 % * Actuator3 off
3
P
U
/
N
P
i
c
k
up 90 % 90 % Actuator3 on
3
90 % * Actuator1 off
Actuator2 off
21
Normal Source Voltage
D
O
/
N
D
r
o
p
o
u
t
8
5
%
85 % Actuator1 on
Actuator2 off
21
DO
/
NDropout 85 %
80 % Actuator1 off
Actuator2 on
21
70 % Actuator1 on
Actuator2 on
21
Emer
g
enc
y
Source –– Pickup 90 % non-adjustable
E
m
e
r
g
e
n
c
y
S
o
u
r
c
e
Voltage –– Dropout 75 % non-adjustable ––
–– Pickup 95 % non-adjustable
E
m
e
r
g
e
n
c
y
S
o
u
r
c
e
–– Dropout 85 % non-adjustable ––
EmergencySource
Frequency 60
/
50
6
0
/
5
0
H
z
6
0
H
z
60 Hz Actuator 4 off
4
e
q
u
e
c
y
6
0
/
5
0
Hz 60
/
50
H
z60
H
z50 Hz Actuator 4 on
4
V
o
l
t
a
g
e
P
h
a
s
e
s
3
1
3
/
1
3
3phase Actuator6 off
6
V
o
l
tage
P
h
ases 3, 1 3
/
1 3 1phase Actuator 6 on
6

* If dropout voltage is set to 90%, the pickup voltage must be set to 95%.

Table4-3. Transformer Voltage Adjust.

(Low setting shifts all voltage settings down 4.2%; for example, 240 V to 230 V, or480 V to460 V )

DESCRIPTION LABELS FACTORY S ETTING ADJUSTMENT S3 DIP SWITCH
V
o
l
t
a
g
e
A
d
j
u
s
t
(
4
2
%
)
L
OW
/
H
I
LOW Actuator2 off
2
V
o
l
tage
A
d
j
ust
(
4.2%
)
L
O
W
/
HI
H
I
HI Actuator2 on
2