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6.3.3 Connect the motor cable to mains and to the monitoring equipment
DANGER: Explosion/Fire Hazard
Special rules apply to installations in explosive or flammable atmospheres. Do not install
the product or any auxiliary equipment in an explosive zone unless it is rated explosion-
proof or intrinsically-safe. If the product is EN/ATEX-, MSHA- or FM-approved, then see
the specific EX information in the Safety chapter before taking any further actions.
NOTICE:
Do not use Variable Frequency Drive (VFD) with this unit.
NOTICE:
Do not use any type of soft start equipment with this unit.
NOTICE:
Do not conduct resistance checks. The measured values are not valid and the product can
become damaged.
The monitoring equipment can consist of different components.
1. Connect the control conductors T1–T4 to the monitoring equipment.
System
Connections
Concertor
™
N 1. Connect T1 and T2 to the external controller.
The conductors go to a potential free relay output that gives a sum alarm when the pump
fails. The contact is normally closed.
2. Isolate T3 and T4.
Concertor
™
EA
Concertor
™
DP
1. Isolate T1 and T2.
2. Connect T3 and T4 to the gateway.
2. Connect the drain wire to functional ground (earth).
3. Connect the mains leads (L1, L2, L3, and ground (earth) ).
To prevent uncontrolled running of the pump if monitoring equipment failure occurs, a
contactor is recommended.
4. Connect the uncovered screen of the motor cable to ground (earth).
The impedance between the uncovered screen and the grounding point must be less
than 5 milliohms.
The uncovered screen can be attached to the mounting plate with clamps.
6.3.4 Connect the gateway
6.3.4.1 Connect the cables, FPG 411
For more information about the connection terminals, see
on page 49.
1. Connect T3 and T4 from the pump.
2. Connect the drain wire to functional ground (earth).
3. Connect the HMI.
4. Connect the external control system.
For more information about connections with Modbus, see separate documentation.
Cable
Terminal
Pump run
DI1
DI1 is high: Pump active
DI1 is low: Pump inactive
Alarm reset
DI2
6 Electrical Installation
28
Concertor
™
6020 Installation, Operation, and Maintenance Manual
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