7.9.7.3 Activating the «remote control» key
Precondition Password level 2 is activated,
Menu
< Configuration ➙ Pressure control ➙ Load control >
is selected.
1. Press «UP» repeatedly until
Key remote
is displayed as the active line.
2. Press «Enter» to switch into setting mode.
Check box
flashes.
8 9 p s i 0 8 : 1 5 1 7 6 ° F
5.2.3 Load control
Menu
·········
Remote mode : pA/pB RC
Key remote : ☑
Active line
·········
current pB
3. Use the «UP» key to activate the check box.
4. Press «Enter» to accept the setting.
The «remote control» key can be used.
5. Press the «remote control» key to enable remote mode.
Result The operating mode is now configured.
7.9.8 Configuring master control of compressors regulated by pressure switch
➤ Configure the master control as previously described.
7.9.8.1 Configuring master control via floating relay contact
Requirement:
A machine with SIGMA CONTROL 2 (e.g. series BSD) and a conventional machine without
SIGMA CONTROL 2 of the same capacity are to run in sequence as base load or peak load ma‐
chines.
Proposal:
■ Set/adjust the clock program or clock on SIGMA CONTROL 2 .
■ Select local mode with time control pA/pB Clock or clock pA/pB Cycle.
■ Set the system setpoint pressures pA and pB analogous to the required values. They must be
identical to the pressure switch settings on the machine without SIGMA CONTROL 2 .
■ To make the setpoint changeover between the two machines possible, a floating relay contact
must be assigned to the selected local operating mode. An auxiliary contactor can be ener‐
gized via this contact to activate the pressure switches for pA and pB on the compressor with‐
out SIGMA CONTROL 2 . See the example wiring diagram below.
Overview
■ Making the electrical connection
■ Setting the system setpoint pressure pA and pB.
■ Configuring/adjusting the local operating mode
7 Initial Start-up
7.9 Configuring the machine for master control
112
Service manual Controller
SIGMA CONTROL 2 SCREW FLUID 1.1.3 9_9450 03USE
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