6. Appendix
6-1
6-1. Application diagrams
Basic diagram
REMARKS:
(1)
The isolation contactor DC1, is not required to
perform operation to the motor.
Be aware however that DC1 provides galvanic
isolation from the incoming line increasing the safety.
(2)
In this example, Start and Stop command is enabled
by push-buttons. Permanent command is allowed as
well, wiring 1, 2 and 57 terminals as shown in page 3-
3.
(3)
The output relays allow for direct action on contactors
according ratings specified in page 3-2 of this manual.
(4)
The ASTAT Plus is provided with an electronic motor
overload protection, which should be adequate
protection for most of the applications.
You should use an external overload protection if
required by local codes or to protect the motor against
current unbalance.
Basic diagram with By-Pass control
REMARKS:
(1)
The isolation contactor DC1, is not re-
quired to perform operation to the motor.
Be aware however that DC1 provides gal-
vanic isolation from the incoming line in-
creasing the safety.
(2)
In this example, Start and Stop command
is enabled by permanent command. Push-
buttons control is allowed as well, wiring 1,
2 and 57 terminals as shown in page 3-3.
(3)
The output relays allow for direct action on
contactors according ratings specified in
page 3-2 of this manual.
(4)
CAUTION:
In by-pass mode an external overload re-
lay protection must be used.
(5)
By-pass control using function "zxxx" and
external contactor DC2. Details given bel-
low.
By-pass control. Programming steps
1.
The by-pass function may be enabled by
setting "zxxx" to ON. In this case the by-
pass is automatically done after starting.
An alternative, if "zxxx" is set to one of the
programmable inputs "I3" or "I4", the by-
pass may be controlled by one remote
signal (5). Check section 4-5-2 for more
details.
2.
Once this function is enabled, the relay 2r
is automatically assigned to this function
(check section 4-6-3). This relay must be
used to control the by-pass contactor.
Control Voltage
110 / 120V AC
Control Voltage
220 / 240V AC
Control Voltage
DC1 (1)
DC1
Start
Stop
Push Button (2)
Motor Thermistor
FT1 (4)
FT1
(3)
Control Voltage
110 / 120V AC
Control Voltage
220 / 240V AC
Control Voltage
DC1 (1)
DC1
Start /Stop
Permanent
Command (2)
Motor Thermistor
FT1 (4)
DC2
DC2
(3)
FT1
M
3 ~
L1
L2
L3
1 L1 3 L2 5 L3
A 1 A 2
B 1 B 2
A 1 A 2
B 1 B 2
57
57
57
6
8
12 11 14
23 24
33 34
1
2
3
4
5
7
2 T1 4 T2 6 T3
9
I3
I4
1 r
2 r
3 r
P ro gram m ab le In pu ts
P ro gram m ab le re la y O utp uts
S G TD R D
M
3 ~
L1
L2
L3
1 L1 3 L2 5 L3
A 1 A 2
B 1 B 2
A 1 A 2
B 1 B 2
57
57
57
6
8
12 11 14
23 24
33 34
1
2
3
4
5
7
2 T1 4 T2 6 T3
9
I3
I4
1 r
2 r
3 r
P ro gram m ab le In pu ts
P ro gram m ab le relay O u tp uts
S G T D R D