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4 Technical description
4.1 Input and output signals
Connection
PIN 7
PIN 8
Connection
PIN 9 / 10
PIN 13 /14
PIN 11
PIN 12
Connection
PIN 2 / 1
PIN 3 / 4
Connection
PIN 15
PIN 6
PIN 5
4.2 LED definitions
LEDs
GREEN
YELLOW A
GREEN +
YELLOW A
YELLOW A +
YELLOW B
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Supply
Power supply (see technical data)
0 V (GND) connection.
Analogue signals
Command value (WA), signal range 0... 10 V or 4... 20 mA, scalable, alternatively PWM
signal
Feedback value (X), the actual speed is read in via a pulse transmitter (12 / 24 V)
0 V (GND) connection for analogue signals
8V reference voltage output
Solenoids
PWM output solenoid B
PWM output solenoid A
Digital inputs and outputs
ENABLE input:
Generally enabling of the application.
Erases error messages, activates the power stage and the READY signal.
START (DIR) input:
ON:
Closed loop control mode, the PID controller is activated
OFF:
Open loop amplifier mode, pure power amplifier
READY output:
ON:
The module is enabled; there are no discernable errors.
OFF:
ENABLE is not available, no supply or an error has been detected.
Description of the LED function
Identical to the READY output.
OFF:
No power supply or ENABLE is not activated
ON:
System is ready for operation
Flashing:
Error discovered
Intensity of the solenoid current
1.
Chasing light (over all LEDs): The bootloader is active. No normal functions are
possible.
2.
All LEDs flash shortly every 6 s: An internal data error was detected and corrected
automatically! The module still works regularly. To acknowledge the error the module
has to be cycle powered.
Both yellow LEDs flash oppositely every 1 s: The nonvolatile stored parameters are in-
consistent! To acknowledge the error, data has to be saved with the SAVE command or
the corresponding button in the WPC.
SCU-138-P-2230
05.06.2020
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