6. Appendix
6-3
6-1. Application diagrams
Basic diagram with Linear ramp
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 provided 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 protec-
tion 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.
(5)
Linear ramp provided by "Dxxx" function. A tacho genera-
tor must be used as feedback. Details given bellow.
Linear ramp function. Programming steps
1.
The linear ramp function may be enabled by setting
"Dxxx" to ON. In this case, linear ramp is independent of
the load.
This function needs the speed feedback provided by an
external tacho generator. Check section 4-6-2 for more
details.
Control Voltage
110 / 120V AC
Control Voltage
220 / 240V AC
Control Voltage
DC1 (1)
Start
Stop
Push Button (2)
Motor Thermistor
FT1 (4)
(3)
+ -
Linear Ramp (5)
FT1
TG
TAV-5
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 u tp uts
S G T D R D