Basic Checks; Wiring; Wiring Diagrams - Delta DPM-C501L Operating Manual

D P M - C 5 0 1 L O p e r a t i o n M a n u a l

3.2 Basic Checks

Items
General Check
Pre-operation
_3 _3
Check
(not supplied
with power)
Pre-running
Check
(supplied with
power)

3.3 Wiring

3.3.1 Wiring Diagrams


To avoid electric shock, do not change the wiring when the power is on.

Install a breaker switch on the power cord for the meter because there is no power switch on the power
meter.

When the measured voltage is higher than the rated specification for the device, it is necessary to use an
external potential transformer (PT).

When the measured current is higher than the rated specification for the device, it is necessary to use an
external current transformer (CT).
The following table shows the recommended wiring materials.
Connecting Terminals
Operating power
Voltage Measurement
Current Measurement
RS-485
DI/DO
3 - 4
 Regularly check for mounting looseness where the power meter and device are
connected.
 Prevent foreign objects, such as oil, water, or metal powder entering the device through
the ventilation holes. Prevent drill shavings or other debris entering the power meter.
 If the power meter is installed at a location with harmful gas or dust, prevent those
materials from entering the power meter.
 Insulate the connections at the wiring terminals.
 Communications wiring should be done properly to prevent abnormal operations.
 Check for the presence of conducive and flammable objects, such as screws or metal
pieces in the power meter.
 If electronic devices near to the power meter experience electromagnetic interference,
take steps to reduce the electromagnetic interference.
 Check for the correct voltage level for the power supplied to the power meter.
 Check if the power indicator light is lit.
 Check if communication between every device is normal.
 If there is any abnormal response from the power meter, contact your distributor or our
customer service center.
Wire Diameters
AWG 10–24
Contents
Screw Turning Torque
8.0 kgf-cm (0.8 N·m)
Temperature rating
above 70°C