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User Guide
EC-C1700B-420
Installation
©
Danfoss | June 2023
as active and be in emergency stop trip state. If this happens the wiring can be changed connecting the
power supply to VIN_P and VIN_N at same time or before the STOP signals. The emergency state trip can
also be cleared after every startup of the electric device.
CAN-network should be done using twisted pair shielded cable to minimize EMI for the CAN signals. It is
recommended to not use the shield of the CAN cable as the CAN ground, but to use a separate ground
wire.
CAN grounding
If PT100/1000 temperature inputs are used, use signal ground as the ground connection for the sensor.
Motor overload protection
The electric device has three PT100/1000 external temperature sensor inputs that can be used to protect
the motor from overheating. These inputs can be configured to derate the motor current linearly
between two temperatures. For example derate could start when motor temperature is 130°C and
linearly derate the motor current as motor heats and the maximum derate could be at 150°C. Additionally
there are three configurable temperature levels that can cause different actions. First level is note, second
is warning and third is fault. Note can only be seen in fault log of the device. Warning can be seen as CAN-
message as well as in fault log. Fault will trip the device stopping all operation and will also show as CAN
message and in fault log.
In addition to the temperature surveillance that can be used the device has over current and short circuit
protection that stops the device if short circuit or over current is detected.
Signals for monitoring, diagnostics and set-up
The electric device can be connected to the USB-port of the PC with the maintenance connector (USB to
RS485). Maintenance connector enables monitoring, diagnostics and setting up of the electric device. By
using the PowerUSER application, it enables these functions via remote access, for example in the case of
problem solving.
Reliable connection between the PC and the electric device can be ensured by using the Power Series
Service Cable (PSSC). The PSSC is isolated RS485 and shielded cable, designed for demanding
environments. The cable is available in 3 meter (PSSC-3M) and 10 meter version (PSSC-10M). Same cable
can be used with all Danfoss products that have a service connector.
The service cable is ordered separately, see Chapter
PowerUSER application can be downloaded for free from http://www.danfoss.com/.
Service parts
on page 70 for ordering details.
BC454142332191en-000101 | 59
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