More terminals are Form C relay outputs on terminals 01,
02, and 03, and terminals 04, 05, and 06.
4.6.3 Control Supply
Terminals 12 and 13 provide 24 V DC low voltage power to
the digital input terminals (18–33). Those terminals must
be supplied with power from either terminal 12 or 13, or
from a customer-supplied external 24 V DC power source.
Improperly connected control wiring is a common service
issue for a motor not operating or a drive not responding
to a remote input.
4.7 Control Terminals
Control terminals must be programmed. Each terminal has
specic functions it performs and a numbered parameter
associated with it. Refer to Table 4.13. The setting selected
in the parameter enables the function of the terminal. It is
important to conrm that the control terminal is
programmed for the correct function.
In addition, the input terminal must be receiving a signal.
Conrm that the control and power sources are wired to
the terminal. Then check the signal.
Signals can be checked in 2 ways. To select digital input
for display, press the [Status] key as discussed previously,
or use a voltmeter to check for voltage at the control
terminal. Refer to chapter 8.5.14 Input Terminal Signal Tests.
For proper operation of the drive, the drive input control
terminals must be:
•
Wired properly.
•
Powered.
•
Programmed correctly for the intended function.
•
Receiving a signal.
Operator Interface and Driv... Service Guide
MG94A502 Danfoss A/S © 02/2019 All rights reserved. 39
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