ZIEHL-ABEGG ZETADYN 1DV Series, Описание системы

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16 Control and controller functions
3.2 Description of controller functions
3.2.1 Switching on and off
The controller switches itself on when the main
voltage is applied to the controller circuit board.
All three mains phases must be switched on
simultaneously.
The output relay trouble "ST" switches
automatically on about 1 sec after the control
device has been switched on. Until now, the
state of the control inputs is ignored by the
controller. When the supply voltage of the controller board
is switched off, all relay outputs open without
delay.
The higher control has to close the spring-
loaded safety brake and open the main
contactor "K0". The control device blocks the
power semiconductors.
If the controller is switched off during running,
the drive is decelerated because of the braking
torque of the spring-loaded safety brake.
Figure 3.2 Switching on and off the controller
3.2.2 Start and acceleration
(1) The main control system activates the
inputs "Speeds - V_" together with one
"Direction Preset - RV_". The controller
closes the output relay "Controller ready -
RB" and the relay "Spring-loaded safety
brake - MB".
(2) The main control system opens the spring-
loaded safety brake. The controller
accelerates up to the maximum activated
speed in accordance with the set
acceleration with rounded transitions.
Figure 3.3 Start and acceleration
outputs
controller board
ST
L1-L2-L3
RB
MB
t ~ 1s
V
t
inputs
outputs
V3
1 2 3
RB
MB
RF
V1
V3
RV1
RV2