3 Installation
3.4 Electrical Installation
76 DC1 Frequency Inverter 10/12 MN04020003Z-EN www.eaton.com
3.4.2.6 Digital Output (Transistor)
Control signal terminal 8 is set as an analog output (AO) in the default config-
uration.
It can be set to work as a digital input instead by using parameter P-25
( Table 12, Page 98).
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 48: Connection examples (coupling relay with freewheeling diode:
ETS4-VS3; Article no.. 083094)
The parameter assignment is described in section “Digital / analog outputs”,
Page 116.
3.4.2.7 Digital Output (Relay)
Control signal terminals 10 and 11 are connected to the DC1 frequency
inverter's internal relay contact (N/O) in a potential-free manner.
The relay function can be configured with parameter P-18 ( Table 12,
Page 96).
The electrical connection specifications for control signal terminals 10 and 11
are:
• 250 V AC, max. 6 A
• 30 V DC, max. 5 A
We recommend connecting any connected loads as follows:
￫
Control signal terminals 7 and 9 are the common 0 V reference
potential for all analog and digital input signals.
< 20 mA
DO-
OV
8 7
+
+ 24 V
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