Siemens Simatic TDC/FM mc521 Memorycard 6DD1610-0AH3 8 KB EEPROM Revision Stand
 

The hydraulic pump (6) forces oil from the suction chamber (3) to the pressure chamber (8) and thereby moving the pressure cylinder (2) downwards. The valve stem (11) retracts and the valve opens. Simultaneously the return spring (4) is compressed.

Activating the solenoid valve (5) allows the oil in the pressure chamber to flow back into the suction chamber. The compressed return spring moves the pressure cylinder upwards. The valve stem extends and the valve closes

Turning the manual adjuster (1) clockwise moves the pressure cylinder downwards and opens the valve. Simultaneously the return spring is compressed.

In the manual operation mode the control signals Y and Z can further open the valve but cannot move to the «0%» stroke position of the valve. To retain the manually set position, switch off the power supply or disconnect the control signals Y and Z. The red
indicator marked «MAN» is visible.

When setting the controller for a longer time period to manual operation, we recommend adjusting the actuator with the manual adjuster to the desired position. This guarantees that the actuator remains in this position for that time period. Attention: Do
not forget to switch back to automatic operation after the controller is set back to automatic control.

Turn the manual adjuster counterclockwise to the end stop. The pressure cylinder moves upward to the «0%» stroke position of the valve. The red indicator marked «MAN» is no longer visible.

The actuator can manually be adjusted to a stroke position > 0 % allowing its use in applications requiring constantly a minimal volumetric flow.
The SKD32.51, SKD32.21, SKD82.51.. and SKD62.. actuators, which feature a springreturn function, incorporate a solenoid valve which opens if the control signal or power fails. The return spring causes the actuator to move to the «0 %» stroke position and closes the valve.

SIMILAR PRODUCTS

6ES7212-1AB23-0XB8
6ES7214-1AD23-0XB8
6ES7214-1BD23-0XB8
6ES7214-2AD23-0XB8
6ES7214-2AS23-0XB8
6ES7214-2BD23-0XB8
6ES7216-2AD23-0XB8
6ES7216-2BD23-0XB8
6ES7221-1BF22-0XA8
6ES7221-1BH22-0XA8
6ES7222-1BF22-0XA8
6ES7222-1HF22-0XA8
6ES7223-1BF22-0XA8
6ES7223-1BH22-0XA8
6ES7223-1BL22-0XA8
6ES7223-1BM22-0XA8
6ES7223-1HF22-0XA8
6ES7223-1PH22-0XA8
6ES7223-1PL22-0XA8
6ES7223-1PM22-0XA8
6ES7231-0HC22-0XA8
6ES7231-7PB22-0XA8
6ES7231-7PD22-0XA8
6ES7232-0HB22-0XA8
6ES7235-0KD22-0XA8
6ES7212-1BB23-0XB0
6ES7211-0AA23-0XB0
6ES7211-0BA23-0XB0

OTHER SUPERIOR PRODUCTS