H
H
M
M
-
-
S
S
e
e
r
r
i
i
e
e
s
s
E
E
l
l
e
e
c
c
t
t
r
r
i
i
c
c
A
A
c
c
t
t
u
u
a
a
t
t
o
o
r
r
I
I
n
n
s
s
t
t
a
a
l
l
l
l
a
a
t
t
i
i
o
o
n
n
a
a
n
n
d
d
O
O
p
p
e
e
r
r
a
a
t
t
i
i
o
o
n
n
M
M
a
a
n
n
u
u
a
a
l
l
H
H
K
K
C
C
11
3.4
HM Option Technical Data (optional)
EXA
Explosion proof enclosure: Ex d II B T4 {-20
°
C ~ + 60
°
C }
MGO
Declutch able manual worm gear override
WTA
Watertight enclosure (IP68 10m / 72hr)
PCU
Proportional control unit (input/output 0~10 VDC, 4~20mA DC)
AMS1
Additional monitoring switches (SPST x 4EA 250V AC 16A Rating)
ECU
External control unit (LCU+ Digital indicator)
CPT
Current position transmitter (output 4~20mA DC)
MOD BUS
(Plan)
Modbus modules
PROFIBUS
(Plan) Profibus DP interface module
3.5
Duty Cycle *
1
HM04~300 3ph: Nominal 60starts per hour at a rate not exceeding 200 starts per hour.
15Minutes rated based on a nominal torque of 30% of rated (on/off& inching)
HM08,20,40 1ph: 60starts/hour 15Minutes rated (on/off& inching)
HMS1 or HMS3 : 04~40: 1200starts/hour S4-50%duty cycle based on a modulation torque of
50% of rated torque
Note *1
Type of duty according to VDE 0530 / IEC 60034-1
3.6
Hand wheel and Declutching
HM actuators provide a declutch-able manual override system.
In order to manually operate the actuator, Push the manual override
engagement lever towards the hand wheel until it remains in position.
Turn the hand wheel until the valve reaches the required position
Turn clockwise to close
Turn counter-clockwise to open
manual
Short – time duty S2
Intermittent duty S4
The operation time at a constant load is short,
so that thermal equilibrium is not reached.
The pause is long enough for the machine to
cool down to ambient temperature. The
duration of the short –time operation is limited
to 15min (10min, 30min)
The duty is a sequence of identical cycles
which consist of the starting time, operation
time with constant load and rest period. The
rest period allows the machine to cool down
so that thermal overload is not reached. The
relative on-time at S4-25% or S4-50% is
limited to 25% and 50% respectively.