3 Installation
3.6 Electrical Installation
DC1 Variable Frequency Drive 04/16 MN04020003Z-EN www.eaton.com 91
3.6.2.5 Digital Output (Transistor)
When using the device’s default configuration, control signal terminal 8 will
be configured as an analog output (AO).
It can be set to work as a digital output instead (DO) with parameter P-25.
Transistor output DO can deliver a digital signal via control signal terminal 8
with the device’s internal control voltage (+24 V). The maximum permissible
load current is 20 mA.
Figure 55: Connecting example (interposing relay with free-wheel diode:ETS4-VS3)
3.6.2.6 Analog input signals
Depending on how parameters P-12 and P-15 are set, control terminals
4 (AI2) and 6 (AI1) can be connected to analog signals:
• 0 - 10 V,
• 0 - 10 V with scaling and operating direction change,
• 0 - 20 mA
• 4 - 20 mA or 20 - 4 mA with open-circuit monitoring (< 3 mA).
￫
Control terminals 7 and 9 are the common 0 V reference
potential for all analog and digital input signals.
< 20 mA
DO
OV
8 9
+
+ 24 V
￫
Control terminals 7 and 9 are the common 0 V reference
potential for all analog and digital input signals.
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