Installation; Mounting; Connection - Danfoss MCD Series Manual

Installation

This section describes the installation and connection
procedures to use the Remote Operator for basic
control and monitoring of a soft starter. The Remote
Operator is pre-configured to control a soft starter
once control supply power is applied to both devices.
For basic operation, no parameter adjustments are
required to the Remote Operator or the soft starter.
In order to use the Remote Operator's 4-20 mA
Analogue Output to monitor motor current, follow the
instructions in Section 5.

Mounting

The Remote Operator is rated IP54 or NEMA 12
when mounted correctly in accordance with these
instructions. It is intended for use on the flat surface
of a panel, with all external wiring connected from
behind the panel.
The Remote Operator is supplied with a mounting
bracket and four fasteners. The built-in gasket seal
guarantees protection from outside the panel.
Choose the panel location of the Remote Operator.
The required panel cutout is 92 x 92 mm. Place the
Remote Operator through the cutout and locate the
mounting bracket at the rear of the panel onto the
four studs. Use the four fasteners to tighten the
mounting bracket up to the rear of the panel.
For use on a flat surface of a NEMA 1 or NEMA 12
enclosure.
MG.17.E2.02 – VLT is a registered Danfoss trademark
MCD Soft Starter Remote Operator

Connection

The Remote Operator requires a minimum of three
electrical connections – the external power supply, the
chassis earth and the RS485 Starter port to the soft
starter. All external wiring, except the chassis earth
(M4 stud provided), is connected to spring operated
clamp connector terminals with a maximum wire size
of 2.5 mm
Once the Remote Operator is mounted, connect it to
the starter as illustrated below.
Grounding and Shielding
Twisted pair data cable with earth shield is
recommended. The cable shield should be connected
to a GND device terminal at both ends and one point
of the site protective earth.
Termination Resistors
In long cable runs prone to excessive noise
interference, termination resistors should be installed.
This resistance should match the cable impedance
(typically 120 Ω). Do not use wire wound resistors.
Fasteners (x 4)
Mounting Bracket
Universal Panel Cutout
(92 x 92 mm)
Remote Operator
2
. No special tools are required.
3