IM 12D08N05-01E
5-10
<5. MENU STRUCTURE COMMISSIONING>
5.7 Contact output setup
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S1/S2/S3/S4
Each Switch (contact) can have the following functions.
1. Control: A selection of P- PI- or PID control
2. Alarm: Low or high value Limits monitoring
3. Hold:
A hold contact is energised when the instrument is in HOLD
4. Fail:
S4 is set as fail-safe contact. 6.
5. Simulate: To test the operation of the contact, simulate can be used. The contact can
be switched on or off or a percentage of duty cycle can be entered (DC
period time)
6. Off:
Switch is not used.
7. USP:
USP/EU limits for WFI
power on
power on
power down normal opened contact
activated
S1, S2, S3
S4
Above table shows contact output status between common to NO.
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Configure hold
Hold is the procedure to set the outputs to a known state when going into commissioning.
Du ring commissioning HOLD is always enabled, out puts will have a fixed or last value.
During ca libra tion the same HOLD function applies. For ca libra tion, it is up to the user if
HOLD is enabled or not.
Setpoint
Hys.
SC
off
on
off
Delay time
Delay time
t (sec)
Figure 5.3 Alarm contact (on/off control)
