Samson 4785, Mounting And Operating Instructions

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Transit time
minimum OPEN
ACT_STROKE_TIME_INC
Transit time
minimum CLOSED
ACT_STROKE_TIME_DEC
The min. transit time OPEN (towards the 100 % position) is the actual time in seconds
required by the system comprising positioner, actuator and valve to pass through the rated
travel/nominal angle in direction of the valve to be opened (measured during start-up).
The min. transit time CLOSED (towards the 0 % position) is the actual time in seconds
required by the system comprising positioner, actuator and valve to pass through the
rated travel/nominal angle in direction of the valve to be closed (measured during
start-up).
Read-only values
Transit time
required CLOSED
TRAVEL_RATE_DEC
Default:
The required transit time CLOSED is the adjustable minimum time in seconds required
by the valve to pass through the range of the manipulated variable towards the 0 %
position. Range 0 to 240 sec.
0 sec
Transit time
required OPEN
TRAVEL_RATE_INC
Default:
The required transit time OPEN is the adjustable minimum time in seconds required
by the valve to pass through the range of the manipulated variable in direction of
the100 % position. Range 0 to 240 sec.
0 sec
Transmission code
TRANSM_CODE (M)
States:
States:
Default:
For linear actuator with integrally attached positioner:
Determination of the geometrical dimensions of the travel pick-off with integrated
positioner attachment.
1 = D1, lever 64 mm
2 = D2, lever 106 mm
For rotary actuator:
Maximum opening angle of the selected cam disk segment installed.
3 = S90, 90-degree segment
4 = S120, 120-degree segment
1
Transmission length
TRANSM_LENGTH (M)
Range:
Default:
Only for linear actuator with positioner attached according to NAMUR
Lever length, distance between travel pick-off and fulcrum of the pick-up lever.
0.0 to 1023.0 mm
42.0 mm
Transmission pin position
TRANSM_PIN_POS (M)
States:
Default:
Only for linear actuator with positioner attached according to NAMUR
Pin position on the positioner lever, see marking on the positioner lever.
0 = A
1 = B
0
Travel/angle limit
lower
TRAVEL_LIMIT_LOW
Default:
Travel/angle limit
upper
TRAVEL_LIMIT_UP
Default:
Lower limitation of valve travel/angle of rotation to the entered value.
Range -20.0 to 99.9 %. The characteristic is not adapted.
0.0 %
Upper limitation of valve travel/angle of rotation to the entered value.
Range 0.0 to 120.0 %. The characteristic is not adapted.
100.0 %
64
EB 8382-2 EN
List of parameters