15. Electronic positioner (option)
15.1 Technical data
Command signal (input sig. E1, nominal value)
0/4 - 20 mA (option 0 - 5 V)
Feedback (input signal E2, actual value)
4 - 20 mA (option 0 - 5 V)
Sensitivity (dead band)
∆
E
0,25 - 2,5 %
Time delay t
off
0,5 - 10 s
Input resistance
250 Ohm
15.2 Setting
.
To set the positioner, remove 4 screws (figure P / 8.1, page 18) and take
off cover.
.
For the functions of the LEDs installed on positioner board: refer to
figure S.
.
Check programming of the logic board according to pages 18/19, clause
14: DIP switch S1 on the logic board: Pos. 1 and pos. 3 must be in pos.
”OFF” (figure S).
If no speed variation is desired, the DIP switch S1 pos. 7 must be in
position ”ON”. If an error-dependent speed variation is required (figure R),
set DIP switch S1 pos. 7 to ”OFF”.
1) Enable REMOTE (option) see corresponding wiring diagram:
Analogue command signal or run command via local controls are
not accepted without external enable signal (24V DC).
15.3 Programming of the positioner
board
.
Remove cover plate (Figure S).
.
Set switch S2 pos. 5 (figure T1, page 22) according to input signal E1
(nominal value):
0 - 20 mA: position ”OFF”
4 - 20 mA: position ”ON”
.
Set switch S2 pos. 6 for E2 (actual value) = 4 mA to position ”ON”.
(for E2 position feedback via potentiometer 0 - 5 V in position ”OFF”)
In standard version switch S3 (figure T1, page 22) for command signal E1
= 0/4 - 20 mA, i.e. end position ”OPEN” = 20 mA, must be in position 1.
Version for inverse operation (i.e. end position ”OPEN” = 0/4 mA) must be
ordered accordingly from the factory.
20
Multi-turn actuators SARV 07.1 - SARV 10.1
AUMA VARIOMATIC
Operation instructions
MOV
M
oper
ating
speed
100%
control deviation (error)
100%
Figure R: Speed dependent on error variable
1)
Diagnosis LED (green)
Enable REMOTE (option)
always installed,
illuminated during normal
operation
V24: Run command OPEN (green)
V23: Run command CLOSE (yellow)
V35: Permissible number of starts
exceeded (red)
V37: Signals E1 or E2
not available (red)
R88: Delay time
1234567
DIP switch S1
for programming
Cover plate
positioner
Potentiometer
for setting of
OPERATING TIME
Diagnosis LED (green):
Illuminated when
ready
Logic board
Diagnosis LED (red):
Motor protection
tripped
Figure S: VARIOMATIC with positioner