Badger Meter SRD/SRI Valve Positioners - Manual (Page 31)

Code Q – Position Feedback and Alarm, Item 1
The analog output for position feedback indicates the valve
position 0…100% as current signal 4…20 mA 1) Signal range
3 8…20 5 mA, at fault approximately 0 5 mA
The binary output for Alarm will be activated in the following
cases (see "Messages" on page 61 ):
• Calibration error
(for example due to break-up of calibration) Message 3
• Output outside of limits determined during Autostart
(Check mounting of feedback lever) Message 5
• Circuit to potentiometer is disturbed
(cable plugged?) Message 5
• Circuit to IP module is disturbed
(cable plugged?) Message 6
• No actuator movement; Message 7
• Remaining control deviation (packing is too tight?)
Message 11
Signal range: 1 mA or 4…6 mA, at fault < 50 μA
During disturbance of the electronics of the SRD,
the Watchdog circuit is activated The binary output
for alarm signalizes this as “cable failure” See
"Additional Inputs / Outputs" on page 30
Code P – Two Binary Outputs, Item 1
Both binary outputs AB1 and AB2 switch to high current as
soon as the valve position is below or exceeds the associated
limit value If the binary outputs AB1 or AB2 are to be
inverted (higher current no alarm, lower current alarm),
the association upper/ lower alarm have to be exchanged,
see DTM
Signal range 1 mA or 5…6 mA, at fault < 50 μA For
installation, see "Additional Inputs / Outputs" on page 30
Code B – Binary Inputs, Item 1
The binary inputs EB1 and EB2 for two external switches or
sensors initiate the following actions: 2)
EB1 EB2 Action 2)
closed closed IN SERVICE
open closed Position to be operated full power to 0%
closed open Position to be operated full power to 100%
open open Hold last value
1) The direction of action of the position response message is set: valve position 0% = 4
mA; valve position 100% = 20 mA
2) Factory setting Via communication actions may be turned off or used otherwise EB1
and EB2 can thus also be used as diagnostics inputs
An input not used is to be short-circuited (wire bridge
between + and –)
MPORTANT I
Even if opening limit or closing limit are set: these actions are
superimposed, and the actuator actually moves to 0% or 100%.
See "Additional Inputs / Outputs" on page 30.
By DTM, the two input channels are configured so that, for
example, they can trigger a PST Start or can set a status
bit for communication purposes See instructions on the
DTM screen
Code E – B3inary In- / Outputs, Item 1
By DTM, each of both channels can be individually
configured as input or output for binary signals
Configured as input, applies the same behavior as described
in Code B
Configured as output, there can be selected:
• Signal level (NAMUR or binary 0 / 40 mA)
• Logic active high or active low current
• Enable the output due to events (PST result, alarms, and
so on; extensive selection lists—see the DTM screen )
See "Additional Inputs / Outputs" on page 30.
Option—Premium Diagnostic, Item 3
With pressure sensors for monitoring of supply air,
Y1 and Y2 via communication, also for PST See
“Option—Pressure Sensors”
Figure 36: Premium diagnostic
Page 31
Options
August 2014 POS-UM-00009-EN-02