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Figure 14. Bias Output.
Voltmeter
WARNING:
Shock Hazard.
Disconnect all power supplies to the
Commissioning Tool and actuator or control
device before wiring to avoid possible
electrical shock or equipment damage.
The DC FEEDBACK input may be used as a
DC voltmeter to measure up to 30 Vdc.
1. Connect Terminal 7 (DC FEEDBACK) of the
INPUTS terminal block to the positive side of the
voltage to be measured (Figure 15).
2. Connect Terminal 8 (COM) of the INPUTS
terminal block to the minus or common side of
the voltage to be measured.
Figure 15. Voltmeter Connections.
3. Use the toggle switch (Figure 11) to select the
DC FEEDBACK display mode.
4. See the Powering Commissioning Tool section
for a procedure to apply power to the
Commissioning Tool.
NOTE:
The digital display shows the level of the
DC voltage applied between Terminal 7
(DC FEEDBACK) and Terminal 8 (COM).
Siemens Industry, Inc.
Auxiliary Switch Testing
CAUTION:
Equipment Damage Hazard.
Do not apply power to the switch being tested
or to the Commissioning Tool auxiliary switch
inputs. The Commissioning Tool provides a
signal to the switch contacts being tested.
Auxiliary switch testing can be used independently
or while supplying a control signal to the field
devices. LEDs display auxiliary switch contact
closure.
NOTE:
Connect the auxiliary switch terminals to
dry contacts only.
1. Connect the control device's auxiliary switch
terminals to the applicable Commissioning Tool
auxiliary switch input terminals (Figure 16).
Figure 16. Switch Connections Using
Dry Contacts.
2. See the Powering Commissioning Tool section
for a procedure to apply power to the
Commissioning Tool.
3. LEDs at the bottom right of the Commissioning
Tool activate or de-activate when their
respective switch contact closes or opens. Also
see the appropriate actuator documentation for
switch wiring information.
Repair
CAUTION:
Field repairs must not be made.
129-287
Operating Instructions
Rev. 1, October, 1999
Page 7 of 8
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