ABB TZIDC Manual page 18

18 TZIDC DIGITAL POSITIONER | DS/TZIDC-EN REV. G
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... Specification
... Electrical data for inputs and outputs
Plug-in module for analog feedback AO*
Without any signal from the positioner (e.g. 'no power' or
'initializing') the module sets the output to > 20 mA (alarm
level).
Terminals +31 / -32
Signal range 4 to 20 mA (split ranges can be parameterized)
• in the event of an error > 20 mA (alarm level)
Supply voltage, two-wire 24 V DC (11 to 30 V DC)
technology
Characteristic curve rising or falling (configurable)
Deviation < 1 %
Plug-in module for digital feedback SW1, SW2*
Two software switches for binary position feedback (position
adjustable within the range of 0 to 100 %, ranges cannot
overlap)
Terminals +41 / -42, +51 / -52
Supply voltage 5 to 11 V DC
(Control circuit in accordance with DIN 19234 /
NAMUR)
Output 'logical 0' < 1.2 mA
Output 'logical 1' > 2.1 mA
Direction of action Configurable
'logical 0' or 'logical 1'
* The module for analog feedback and the module for digital feedback
have separate slots and can be used together.
Mechanical digital feedback
Two proximity switches or microswitches for independent
signaling of the actuator position, switching points are
adjustable between 0 bis 100 %.
Feedback on the actuator position using proximity switches Limit 1,
Limit 2
Terminals +41 / -42, +51 / -52
Supply voltage 5 to 11 V DC
(Control circuit in accordance with DIN
19234/NAMUR)
Direction of action Metal tag in the
proximity switch
Type SJ2-SN (NC; log 1) < 1.2 mA
Feedback on the actuator position using microswitches Limit 1, Limit 2
Terminals +41 / -42, +51 / -52
Supply voltage maximum 24 V AC/DC
Load rating Maximum 2 A
Contact surface 10 µm Gold (AU)
Mechanical position indicator
Indicator disk in enclosure cover linked with device feedback
shaft.
These options are also available for retrofitting by Service.
Metal tag outside the
proximity switch
> 2.1 mA