Fairford Synergy SGY-401, Quick Start Manual

Page: 9 / 20

9
Emergency stop
Enable
Stop
Forward
Reverse
Reset
K2A
K1.1
K1
~
3
K2
K1.2
K2.1 K1A
K2.2
K1A K1 K2
synergy™
33
34
synergy™
L or 24Vdc D1–1I D2–1I
N or 0Vdc D1COM D2COM
K2A
Control supply 110/230Vac or 24Vdc
depending on application
M
!
Below is a soft start reversing circuit without soft stop, it shows the main components required.
You must follow your local wiring and electrical regulations when constructing this circuit, set to
‘User Programmable’ control.
These are the major components of the
system. Local wiring regulations should be
observed. Note the use of timers to ensure
that a reversed voltage is not applied to
the starter/motor before the motor field
has had some chance to die away.
The thermal capabilities of synergy
™
should be considered.
Note: forward and reverse buttons must remain
pressed for longer than timer change over period.
Item Description
K1, K2 AC3 rated forward/reverse contactors
K1A, K2A 1 second drop out delay timers
synergy
™
synergy
™
soft start
Emergency stop
Enable
Stop
Forward
Reverse
Reset
K2A
K1.1
K1
~
3
K2
K1.2
K2.1 K1A
K2.2
K1A K1 K2
synergy™
33
34
synergy™
L or 24Vdc D1–1I D2–1I
N or 0Vdc D1COM D2COM
K2A
Control supply 110/230Vac or 24Vdc
depending on application
M
!
Protection switch
gear (provided by
the customer)
Induction
Motor
U1
U2
V2 W2
V1 W1
Induction
Motor
Soft start motor reversing circuit
CAUTION
REFER to TABLE 1 on page 6 for input control voltages.
synergy
™
Soft
Starter