Toshiba GRL100-701B Instruction Manual page 93

Setting
The table below shows the setting elements necessary for the thermal overload protection and
their setting ranges.
Element Range
THM 2.0 – 10.0 A
(0.40 – 2.00 A)(*)
THMIP 0.0 – 5.0 A
(0.00 – 1.00 A)(*)
TTHM 0.5 - 300.0 min
THMA 50 – 99 %
[THMT] Off / On
[THMAL] Off / On
(*) Current values shown in the parenthesis are in the case of a 1 A rating. Other current
values are in the case of a 5 A rating.
Note: THMIP sets a minimum level of previous load current to be used by the thermal element,
and is typically used when testing the element. For the majority of applications, THMIP
should be set to its default value of zero, in which case the previous load current, Ip, is
calculated internally by the thermal model, providing memory of conditions occurring
before an overload.
Step Default Remarks
0.1 A 5.0 A Thermal overload setting.
(0.01 A) (1.00 A) (THM = I
0.1 A 0.0 A Previous load current
(0.01 A) (0.00 A)
0.1 min 10.0 min Thermal time constant
1 % 80 % Thermal alarm setting.
(Percentage of THM setting.)
Off Thermal OL enable
Off Thermal alarm enable
 92 
6 F 2 S 0 8 5 0
: allowable overload current)
AOL