ROWAN ELETTRONICA s.r.l. - Via Ugo foscolo, 20 - 36030 CALDOGNO (Vicenza)
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STANDARD SETTINGS
The code 390S card comes out of the Rowan laboratories tested and set as follows:
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Supply set for a supply range of 330VAC÷500VAC
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3 wire turn adjustment potentiometer connection - S1 open
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Ramp range – minimum 0.02 sec. - maximum 2 sec. - S2 open
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4-pole motor – S3 closed
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Polarity rectifier on – S5 closed – S4 open
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DC braking off – S10 closed / Couple limitation off - S9 open – the remaining micros: S7 open, S6-S8-S11-S12
closed.
STANDARD CALIBRATION
Minimum speed 0 rpm
Maximum speed 1400 rpm
Acceleration/deceleration ramps 2 seconds
TRIMMER DESCRIPTION
TRIMMERS THAT CAN BE REACHED WITHOUT REMOVING THE COVER
P1
Deceleration: adjusts the deceleration ramp time in the following adjustment ranges:
with micro S2 open – minimum 0.02 sec. – maximum 2 sec.
with micro S2 closed – minimum 0.25 sec. – maximum 25 sec.
If turned in a clockwise direction the time is increased.
P2
Acceleration: adjusts the acceleration speed ramp in the following adjustment ranges:
with micro S2 open – minimum 0.02 sec. – maximum 2 sec.
with micro S2 closed – minimum 0.25 sec. – maximum 25 sec.
If turned in a clockwise direction the time is increased.
P3
Maximum revs.: adjusts the maximum speed of the motor with the turn adjustment potentiometer or
differential speed control input signal = +10VDC. Turning in a clockwise direction increases the speed.
P5
Minimum revs.: adjusts the minimum speed of the motor with a minimum turn adjustment potentiometer
at maximum or when the differential speed control input signal = 0VDC. Standard adjustment for motionless
motors. Turning in a clockwise direction increases the speed.
P8
Stability: turning in a clockwise direction stabilises possible motor speed oscillation due to particularly
unstable loads. (With micros S6 and 7 closed, the proportional gain of the speed control in closed loop
lowers).
P9
Maximum couple adjustment: adjusting in a clockwise direction increases the voltage/current to the
motor (only active if couple limitation is inserted and micros S9 and S8 are closed).
TRIMMERS THAT CAN BE REACHED BY REMOVING THE COVER (only for authorised personnel)
P4
Internal precalibration for the maximum speed of 4-pole motors.
P6
Regulating in a clockwise direction increases the P8 stabilising effect.
P7
Internal precalibration. Do not touch.
P10 Maximum dc braking adjustment.
P11 Minimum couple adjustment: turning in a clockwise direction increases the voltage/current to the motor
with reference on terminals 8 or 11 at 0VDC (only active if couple limitation is inserted with micros S9 and
S8 closed).
P12 EMERGENCY intervention delay adjustment (minimum 1 sec. maximum 15 sec. when turned fully clockwise)
standard calibration 8 sec.
