Specifications
42/18-85-EN TZIDC-200, TZIDC-210, TZIDC-220 47
9.3.9 Options
Module for the emergency shutdown function
Supply voltage 24 V DC (20 ... 30 V DC)
(electrically isolated from input
signal)
Safe position is activated when Voltage < 5 V
Explosion protection Ex ia IIC
Without the separate 24 V DC feed, the positioner moves into safe
position independent of the processor by depressurizing the actuator.
In addition, the feed for the I/P module is isolated via an optocoupler.
Communication and feedback remain active because the positioner is
fed via a bus line. The shutdown switching input is electrically isolated
from the setpoint signal.
The emergency shutdown function can save use of additional
solenoid valves and has a safety certificate from TÜV Rheinland acc.
to AK4. The plug-in module also has an Ex certificate for use in
intrinsically safe circuits.
Mechanical position indicator
- Indicator disk
- Cover with transparent dome
- Symbol label
- Extension shaft
Digital position feedback with proximity switches
Two proximity switches for independent position signaling. Switching
points adjustable between 0 … 100%
Current circuits acc. to DIN 19234 / NAMUR
Supply voltage
5 ... 11 V DC
Signal current < 1.0 mA Switching state logical "0"
Signal current > 2.0 mA Switching state logical "1"
(function dependent on software and electronics for actuator)
Direction of action (logical state)
Position
Proximity switch < Lim. 1 > Lim. 1 < Lim. 2 > Lim. 2
SJ2-SN (NC) 0 1 1 0
SJ2-S1N (NO) 1 0 0 1
Digital position feedback with 24 V microswitches
*
Two microswitches for independent position signaling. Switching
points adjustable between 0 … 100 %.
Voltage
max. 24 V AC / DC
Load rating
max. 2 A
Contact surface
10 µm Gold (AU)
Mechanical position indicator
Indicator disk in enclosure cover, linked with positioner feedback shaft
through magnetic coupling.
*
The “digital feedback” is activated directly from the axis of rotation for
the variable pick-off and can only be used with the “mechanical
position indicator”.
IMPORTANT (NOTE)
These options are also available for retrofitting by Service.
9.3.10 Accessories
Mounting material
- Attachment kit for linear actuators to DIN / IEC 534 / NAMUR
- Attachment kit for part-turn actuators to VDI / VDE 3845
- Attachment kit for integral mounting to control valves
- Attachment kit for actuator-specific attachment upon request
Pressure gauge block
- Pressure gauges for supply and output pressure
- Pressure gauges with housing ø 28 mm
- Aluminum connection block in black
- Installation material for mounting on positioner
Filter regulator
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