W.E.S.T. Elektronik POS-123-P, Technical Documentation Manual

Page: 23 / 57

Page 23 of 58 POS-123-*-2030 23.08.2019
5.2.4 EOUT (Output signal: READY = OFF)
Command Parameters Unit Group
EOUT x x= -10000… 10000 0,01 %
EXP
Output value in case of a detected error or a deactive ENABLE input. A value (degree of valve opening) for
use in the event of a sensor error (or the module is disabled) can be defined here. This function can be used if,
for example, the drive is to move to one of the two end positions (at the specified speed) in case of a sensor
error.
|EOUT| = 0
The output is switched off in the event of an error. This is normal behavior.
CAUTION!
If the output signal is 4… 20 mA, the output is switched off when
|EOUT| = 0
. If a null
value = 12 mA is to be output in the event of an error, EOUT must be set to 1
4
.
The output value defined here is stored permanently (independently of the parameter set). The
effects should be analyzed by the user for each application from the point of view of safety.
Do not use the manual mode in conjunction with the EOUT command. After the deactivation of
the HAND input the output is set to the EOUT value.
5.2.5 HAND (Manual speed)
Command Parameters Unit Group
HAND:i x
i= A|B
x= -10000… 10000
0,01%
STD
The manual speeds are set with these parameters. The drive moves in a controlled manner in the defined
direction when the manual signal is active. The direction is defined by the sign of the parameters. After the
manual signal has been disabled, the drive remains under control in the current position.
In case of a fault (position sensor fault), the drive can still be moved with the manual function. The output will
be switched off when hand signals are turned off.
The manual speed is also limited by the (internal or external) speed demand (MIN evaluation).
Caution! Do not use the manual mode in conjunction with the EOUT command. After the
deactivation of the HAND input the output is set to the EOUT value.
4
This is necessary if using valves without error detection for signals lower than 4 mA. If the valve has an error detection, it
moves into a defined position after switching off the output.