R&M Materials Handling HOIST MONITORS - Manual (Page 39)

R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
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R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
Parameter Value Description Note
4-3-2
ROUT logic Norm Selects the operation logic of the relay. Normal operation is
as described above When the operation logic has to be inverted, set this
parameter to “Inv”
4-3-3
ROUT loadX “n” t Sets the load limit “X” in tons, when the option “LoadX” is
selected.
Setting range: 0.0t…rated load of the hoist The upper limit is the rated load of the solo hoist connected
to the unit.
4-3-4
TempX
meas T1
T2
T1+2 Selects the temperature measurement.
“T1” temperature measurement T1 determines the
operation of the relay (typically the low speed windings)
“T2” temperature measurement T2 determines the
operation of the relay (typically the high speed windings)
“T1+2” both T1 and T2 are used. When either one reach
the limit, the relay operates. See also the settings of parameters 4-4-1, 4.5.1, 4-7-6 and
4-7-7
4-3-5
TempX lim “n” C Sets the motor temperature limit in Centigrade In practice the limit should be less than the temperature set
by parameter 4-10-2
7.7 Hoist brake-wear supervision
The unit can be programmed to supervise the brake wear. This option requires a type of brake with a
built in brake-wear sensor and can only be used when the load measurement system is sensor based
(thus not with motor torque calculation systems). When the unit measures excessive break wear, the
motion will be stopped.
7.7.1 Hoist brake-wear supervision instructions
This option requires a brake wear sensor like commonly used in XL-hoisting brakes, or an additional
micro-switch that supervises the airgap of the brake. The sensor is connected to the temperature
measurement input T1 (TP11 & TP12) or T2 (TP21 & TP22).
Hoist brake-wear supervision parameters
Parameter Value Description Note
4-4 T1 T1 parameters Accessible with password 4: 8124
4-4-1
T1 operat. Bwear Activates the brake wear supervision, when
connected to the T1 input. Worn brake (thus open contact) will stop the motion and “Fault, Br
wear” indication appears on the display.
In case the T1 input is in use for another function, connect the sensor to the T2 input and set
parameter 4-5-1 to “Bwear”
It is recommended to set parameter 4-10-1 to: “Down”, in order to allow lowering the load when
the brake-wear supervision is activated. Note that this will also allow lowering when the
overtemperature is activated, because parameter 4-10-1 determines the operation of both the T1
and T2 inputs!