6.4 Alarm
The RMC400 control-units have a fault contact for feedback. The maximum current for the fault
contact is 0.5 A at 24 V AC/DC.
The fault contact is in operation:
• When the electric motor is thermally stopped
•
When phase failure occurs
•
When the safety switch is operated
• When there is no power supply.
6.5 Safety functions and stop functions
The RMC400 control-unit has the safety functions and stop functions that follow:
1.
Phase detection to protect from a change of phases in the power supply. This makes sure that
the direction-of-rotation of the motor gearbox is correct.
2.
Delay time when the direction-of-rotation is suddenly changed. This prevents that it continues in
the initial direction.
3.
Protection from thermal overload with a Motor-Protection Circuit-Breaker (MPCB, if applicable).
4.
Stops automatically when the safety switch is operated. Manual or automatic control in the
opposite direction-of-rotation stays possible.
5.
Error-message indication with four LEDs on the control board (A2).
6.
Feedback of error messages with a fault contact.
Control signals from an automatic control-system (ACS) are only
processed if the manual control (MC) is in automatic mode.
Automatic mode is only in operation if there is an automatic control
signal (ACS).
Connect the fault contact to an alarm unit or an alarm input of a
control system.
Ridder Drive Systems B.V.
T
+31 (0)341 416 854 -
F
+31 (0)341 416 611 -
I
26
Ridder Drive Systems B.V.
T
+31 (0)341 416 854 -
F
+31 (0)341 416 611 -
I
27
Summary of Contents for MotorControl RMC400
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