Bernard Controls ST Range Manuel utilisateur

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Bernard Controls ST Range Manuel utilisateur | Fixfr
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User questions

Q T

Michael Q.

How to adjust actuator settings and troubleshoot early stops or reopening issues?

Configuration depends on the control type: INTELLI+ uses an LCD screen or Bluetooth; INTEGRAL+ uses manual jumpers; SWITCH requires a screwdriver to adjust cams. If an actuator stops early, check the torque limiter settings or valve resistance. Reopening in auto mode is usually caused by signal consigne drift, dead band configuration, or active priority functions.

Q T

Michael Q.

What are the adjustment methods for different actuator control types?

INTELLI+® allows non-intrusive configuration via the LCD screen or infrared/Bluetooth. INTEGRAL+ is adjusted using manual jumpers. SWITCH requires manual adjustment of cams using a screwdriver.

Q T

Michael Q.

Why might an actuator stop before reaching the close limit in remote mode but work correctly in local mode?

This usually indicates the torque limiter is triggering before the limit switch. Check if the stop mode is set to 'On torque' versus 'On position', verify the torque limiter setting (adjustable from 40-100%), or inspect for mechanical resistance near the closing point.

Q T

Michael Q.

Why would an actuator open slightly when switched to automatic mode after being closed?

This may be caused by the positioner's command signal not being at absolute zero, the dead-band configuration, an active 'priority to open' external contact, or the configured failsafe behavior for signal loss.

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