ROWAN ELETTRONICA s.r.l. - Via Ugo foscolo, 20 - 36030 CALDOGNO (Vicenza)
page 5 out of 24
DESCRIPTION OF THE SERVICE TERMINAL BOARD
1 - 2
Tachometrical dynamo differential input 10VDC / 1400r/m (20VDC / 2800r/m).
3
+10VDC reference to supply couple/turn adjustment potentiometers (max. load 5mA).
7
Common negative 0VDC reference
10
Reference for connection of the external emergency relay, type 24VDC/max. 50mA
4 - 7
Stop in ramp contact connection in NPN logic (micro S11 closed): active when contact is close
4 - 10
Stop in ramp contact connection in PNP logic (micro S11 open): active when contact is open.
W h e n
stop in ramp is active, the L5 pilot light lights up and provokes the controlled deceleration ramp descent of
the motor until zero revs.. When stop in ramp is inactive, the motor starts in acceleration ramp at the
maximum speed set.
5 - 7
Running contact connection in NPN logic (micro S11 closed): active when contact is open
5 - 10
Running contact connection in PNP logic (micro S11 open): active when contact is closed. When running
is active the L6 pilot light lights up and starts the motor in acceleration ramp at the maximum set speed.
When running is inactive motor voltage is statically removed.
3 extreme
6 cursor
7 extreme
7 extreme
6 cursor
14 (0V) – 13(positive) Speed adjustment differential signal input 0/+10VDC from PLC or Rowan interface cards (input
resistance 100Kohm), micro S12 open
3 extreme
8 cursor
7 extreme
7 (0V) – 11 (positive) Maximum voltage adjustment signal input 0/+10VDC to the motor (max. current with TA connected
to terminals 7-15) from PLC or Rowan interface cards (input resistance 100Kohm); micro S8 open – S9
closed.
9 - 12
Internal emergency relay contact (see page 4 for type of connection)
7 - 15
Amperometric transformer (TA) connection for maximum current feedback control of the motor. Input set for
TAs of the type with maximum output 4VAC/0.2A.
DESCRIPTION OF THE POWER TERMINAL BOARD
PE
EMI filter earth connection; connect to the main protection conductor in combination with the line inductor to
reduce the conducted emissions (see correct installation instructions on page 8).
Warning! The anti EMI filter works with a small current dispersion towards earth which, at the moment of
supply, could cause very sensitive differentials to intervene. It is therefore advisable to use differentials for
variable currents.
R1-S1-T1
Threephase supply line. Be careful to pre-set the voltage change correctly before supplying these terminals
(see setting at work instructions on page 9).
U1-V1-W1
Output adjusted to the load. Pre-set a star or delta load according to the information on the plates and the
supply voltage.
3-wire speed adjustment potentiometer connection (micro S1 open – S12 closed)
(resistive values from 2 to 100Kohm in line with the maximum load connectable to terminal 3).
2-wire speed adjustment potentiometer connection (micro S1 closed )
(only 10Kohm).
Maximum voltage adjustment potentiometer connection to the motor (max. current with TA connected
to terminals 7-15) (resistive values from 2 to 100Kohm in line with the max. load connectable to terminal 3);
micro S8 open – S9 closed.
