Delta VFD004EL21W-1 User Manual

Chapter 4 Parameters  VFD-EL-W
4-97
Optional Accessories for Multi-pumps under Alternative Operation
When you use the multi-pump operation, pay attention to the following wirings.
1. Use a RJ45 cable (8 pin, Internet cable) without an adapter. Simply connect the master/slave communication
port. If there are more than two pumps, use RMKE-HUB01 to connect RJ45.
RJ45 Female Connector
RMKE-HUB01
RS-485 One-wire to Two-wire
2. Use a RJ11 (6 pin) cable with an adapter to connect the master/slave communication port.
VFD-CMD04
RS-485 RJ11
Four-port communication breakout box
Case:
For alternative operation of multi-pump (Pr.10.35=1 Fixed Time Circulation)
 Enables four pumps to operate alternatively by time to extend their life span.
 Keeps the water pressure at 3 kg in a water system with constant pressure.
Refer to the diagram below:

Delta VFD004EL21W-1 Specifications

General

Brand	Delta
Model	VFD004EL21W-1
Category	DC Drives
Language	English