3-18 Installing the Drive 590 Series DC Digital Drive
Control Connections
Setpoint Ramp Input
B3
B4
Connect a 10k
potentiometer
between
terminals B3
and B4.
Connect the
wiper to A4.
For normal operation the speed demand signal is connected to the "Setpoint
Ramp Input", terminal A4 (Analog I/P3). This input is scaled so that:
+10V input = maximum forward speed demand (+100%)
- 10V input = maximum reverse speed demand (-100%)
The speed demand signal can be generated by connecting the two ends of an
external 10K potentiometer to the +10V reference terminal B3 and -10V
reference terminal B4, the wiper of the potentiometer being connected to the
"Setpoint Ramp Input" as the speed reference.
The main current limit is adjustable by means of the MAIN CURR. LIMIT
parameter [Tag No. 15]. For normal operation of the main current limit,
Terminal A6 should be connected to the +10V reference, Terminal B3, and the
CURR. LIMIT/SCALER should be set to 200%. This allows the MAIN
CURR. LIMIT parameter to adjust the current limit between 0 and 200% full
load current. If external control of the main current limit is required, a 10K
potentiometer connected between Terminal B3 (+10V Ref) and Terminal
B1(0V), with the wiper connected to Terminal A6 (Analog I/P5) gives 0 to
200% of full load current provided that MAIN CURR. LIMIT and CUR.
LIMIT/SCALER are set to 200%.
SET
SPEED
10K
B3A4B4A8
A6
MMI Menu Ma
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