MHT258a (Engl.)
6-16
■
Two 90° phase-different signal
A-phase and B-phase signal indicate rotational direction and rotational quantity, respectively.
Each edge of A-phase and B-phase signals corresponds to one pulse.
A-phase
[CA]
B-phase
[CB]
t
10
t
8
t
9
Pulse width : t
8
＞
1.25
μ
s
Pulse cycle : t
9
≧
2.5
μ
s
Edge interval : t
10
＞
1.25
μ
s
6.2.5 Braking resistor
Connects the NTC thermistor of braking resistor to the control input terminal to protect the resistor.
System parameter 86
Para.
Name
Setting range
Initial value
Change
86
Braking resistor thermal overload relay
0: Electronic thermal O/L relay
1: External thermal O/L relay
0
Power
Setting
Overheat detection of braking resistor
0: Electronic thermal O / L relay
Calculates the regenerated power by amplifier to protect the resistor.
1: External thermal O / L relay
Directly detects resistor overheat using NTC thermistor built-in the resistor.
To use external thermal relay, set the external alarm input (34) at the control allocation terminal, connect NTC thermistor for the external
resistor.
Protective function by electronic thermal relay built-in the amplifier will be disabled.
Summary of Contents for Faldic-a Series
Page 1: ...RYS V Type User s Manual MHT258a Engl...
Page 55: ...3 28 MHT258a Engl 2 RYS amplifier a 0 03 to 0 2 kW 5 5 150 0 5 0 5 53 60 160 130...
Page 56: ...3 29 MHT258a Engl b 0 4 kW 160 130 60 80 53 150 0 5 0 5 5 5...
Page 57: ...3 30 MHT258a Engl c 0 75 kW 130 160 60 100 54 39 0 5 0 5 150 0 5 0 5 5 5...
Page 58: ...3 31 MHT258a Engl d 1 to 1 5 kW 160 130 60 115 54 54 0 5 0 5 150 0 5 0 5 5 5 Cooling fan...
