Honeywell HVAC232 Series, Applications Manual

Page: 32 / 145

Application manual HVAC232/402 | Document 27-652 | Issue ENG06 | 2019-08-07 32
3.10 Cable installation
The units are suitable for use on a circuit capable of delivering not more
than 50,000 A
rms
symmetrical amperes.
Motor overload protection provided at 110% of full load current.
3.11 Cable and motor insulation checks
These checks can be performed as follows if motor or cable insulations
are suspected to be faulty.
1.
Motor cable insulation checks
Disconnect the motor cable from terminals U/T1, V/T2 and W/T3 of
the frequency converter and from the motor. Measure the insulation
resistance of the motor cable between each phase conductor as well as
between each phase conductor and the protective ground conductor.
The insulation resistance must be >1 MOhm.
2.
Mains cable insulation checks
Disconnect the mains cable from terminals L1, L2 / N and L3 of the
frequency converter and from the mains. Measure the insulation re-
sistance of the mains cable between each phase conductor as well as
between each phase conductor and the protective ground conductor.
The insulation resistance must be >1 MOhm.
3.
Motor insulation checks
Disconnect the motor cable from the motor and open the bridging
connections in the motor connection box. Measure the insulation
resistance of each motor winding. The measurement voltage must
equal at least the motor nominal voltage but not exceed 1000 V.
The insulation resistance must be >1 MOhm.
4 COMMISSIONING AND
START-UP WIZARD
Before commissioning, read the warnings and in-
structions listed in „1 SAFETY“ on page 6!
4.1 Commissioning steps of HVAC232/402
1
Read carefully the safety instructions in
„1
SAFETY“ on page 6 and follow them.
2
After the installation, make sure that:
• both the frequency converter and the motor are grounded
• the mains and motor cables comply with the requirements given in
„Cable and fuse specifications“ on page 29
• the control cables are located as far as possible from the power
cables (see „General cabling rules“ on page 31, step 2) and
• the shields of the shielded cables are connected to protective
earth.
3
Check the quality and quantity of cooling air
(„3.3 Cooling“ on page 17).
4
Check that all Start / Stop switches connected to the I/O terminals
are in
Stop position.
5
Connect the frequency converter to mains.
6
Set the parameters of group 1 according to the requirements of your
application. At least the following parameters should be set:
• motor nominal speed, parameter 1.3 ("9.1
Quick setup pa-
rameters (Virtual menu, shows when par. 16.2  1)“ on page
56)
• motor nominal current, parameter 1.4 ("9.1 Quick setup pa-
rameters (Virtual menu, shows when par. 16.2  1)“ on page
56)
• application type („Active fire mode parameter group“ on page 131)
You will find the values needed for the parameters on the motor