Installation
19
3.4.3 Reversing Configuration
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.
K2
M
3~
L / 24Vdc
N or 0Vdc
D1-1I
D1COM
D2COM
D2-1I
53
54
EMERGENCY
STOP
ENABLE
K2.2
K2A
K1.2
K1A
REVERSE
RESET
K1.1
K2.1
Protection switch
gear (provide by
the customer)
Control Supply 110/230Vac or 24Vdc
depending on application
Note:
Forward and reverse buttons must remain pressed for longer
than timer changeover period
•
“Stop” must be pressed before direction reversal can be initiated
•
Digital Output 3 must be configured to “Running”
•
Digital Input 1 must be configured to “High Start / Low Stop”
•
Digital Input 2 must be configured to “Reset”
VMX-synergy Plus
K1, K2: AC3 rated forward / reverse contactor
K1A, K2A: 1 second drop out delay timers
STOP
FORWARD
K1
K1A
K2
K2A
K1
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 reduce to zero.
The thermal capabilities of VMX-Synergy™ should be considered.