ABB TZIDC, Operating Instructions Manual

Page: 47 / 88

Specifications
42/18-84-EN TZIDC, TZIDC-110, TZIDC-120 47
9.3.8 Housing
Material / Degree of protection
Aluminum, protection class IP 65 (optional IP 66) / NEMA 4X
Surface / Color
Electrostatic dipping varnish with epoxy resin, stove-hardened.
Case varnished black, RAL 9005, matte, housing cover Pantone
420.
Electrical connections
Screw terminals:
Max. 1.0 mm
2
(AWG 17) for options
Max. 2.5 mm
2
(14 AWG) for bus connector
IMPORTANT (NOTE)
Do not expose the terminals to strain.
Four thread combinations for cable entry and pneumatic
connection
- Cable: thread 1/2-14NPT, air pipe: thread 1/4-18 NPT
- Cable: thread M20 x 1,5, air pipe: thread 1/4-18 NPT
- Cable: thread M20 x 1,5, air pipe: thread G 1/4
- Cable: thread G 1/2, air pipe: thread Rc 1/4
(Optional: With cable gland(s) and pipe plugs if necessary)
Weight
1,7 kg (3,75 lb)
Mounting orientation
Any
9.3.9 Options
Module for the emergency shutdown function
Supply voltage 24 V DC (20 ... 30 V DC)
(galvanically isolated from input
signal)
Safe position is activated when voltage < 5 V
Explosion protection see certificate (operating
instructions)
A separate 24 V DC signal is normally applied to the emergency
shutdown module, which connects through the signal from the
microprocessor to the I/P module.
When the 24 V DC signal is interrupted, the pneumatic module
executes the respective safety function, depending on the mechanical
construction:
The positioner output Y1 is depressurized, and the valve is moved to
the safe position. In case of a double-acting actuator the second
output Y2 is additionally pressurized.
IMPORTANT (NOTE)
The emergency shutdown module can only be used with
pneumatics with the safe position “fail-safe”.
The emergency shutdown module works independently of the mother
board, i.e. all information from the final control element is available in
the supervisory process control system at any time.
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.
*
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 rotary 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
All metal version in brass, varnished black, bronze filter element
(40 µm) and condensate drain.
Max. pre-pressure 16 bar (232 psi), output adjustable to 1.4 ... 6 bar
(20.31 ... 90 psi)