Extended Functions In The Full Version; Ready" Lamp; Blocking Magnet -Y0; Wiring Diagrams For C.b. On Withdrawable Part - ABB VM1 Instruction Manual

• Input -Y1 "closing lock-out" (closed circuit shunt
release) must be energized for the circuit-
breaker to be closed.
• In the as-delivered condition of devices for
stationary-mounted installation (without wiring),
this input is therefore provided with a voltage of
80 V by an internal circuit as soon as the storage
capacitor is charged.
• If this closed circuit shunt release -Y1 is used to
monitor an external voltage, the voltage to be
monitored is to be applied to this input.

3.1.4.2 Extended functions in the full version

In addition to the functions of the standard version,
the full version contains the following functions:
• Untervoltage release -Y4
This input switches the VM1 off if the voltage
applied falls below the tolerance range stipulated in
IEC 62271.
The nominal value of the voltage to be monitored is
set at the works in accordance with the
specification in the order.
For the coding of the DIP switches, see
figure 9/18a.
In order to prevent switch-off when the voltage
briefly falls below the specified level (e.g. on motor
start-up), a tolerance time can additionally be set.
For the coding of the DIP switches, see
figure 9/18a.
If no voltage is applied to -Y4, the VM1 cannot be
closed.
The function of -Y4 can on the control module be
deactivated if it is not required. If the function of -Y4
is deactivated, the VM1 can be opened and closed
without any voltage being applied.
For the coding of the DIP switches, see
figure 9/18a.
• Monitoring of the closing and opening coil of the
actuator
This function monitors the closing and opening coil
of the actuator for cable breakage. If such a
breakage is detected, the "Ready" lamp on the
front of he switching device goes out and
corresponding signals (-S11, -S12) are issued.
• Additional contacts for position signalling
An additional pair of NO contacts to signal the ON
and OFF positions are made available by the
controller (-S43, -S44).
• Direct opening without microprocessor is
supported
The second opening input -Y9 (in the full version on
the control module) is designed in such a way that
an opening command is executed directly without
being passed through the microprocessor.
8
3.1.5 The "Ready" lamp monitors the following
conditions:
• supply of auxiliary power to the VM1 circuit-
breaker (see also section 6.2),
• detection of a defined ON or OFF position by the
position sensors,
• monitoring of the controlled function of the
microprocessor – Watchdog,
• sufficient voltage at the capacitor for the next
switching operation (see also section 2.1.2) and
• continuity of the actuator coils (only full version).
The "Ready" lamp does not monitor the status of
inputs -Y4 and -Y1 (see figure 9/16).
A flashing "Ready" lamp signals recharging of the
capacitor. Switching readiness is enabled during
that time.

3.1.6 Blocking magnet -Y0

(Figure 9/30)
Blocking magnet -Y0 fitted to:
• manually movable VM1 withdrawable parts,
• ZS8.4 withdrawable parts without mechanical
plug connector interlock.
The blocking magnet prevents the withdrawable
part from being moved when no supply voltage is
applied. This interlock is cancelled by applying
supply voltage to blocking magnet -Y0.
3.2

Wiring diagrams for C.B. on withdrawable part

(Figures 10/14 to 10/17 and 9/17)
• The wiring diagrams, shown in figures 10/14 to
10/17, cover the basic equipment and all the
possible configurations of the various VM1
series. The scope of equipment which can be
installed within each series is detailed in the rele-
vant switching device list. The actual equipment
installed in the individual case can be found in
the order documents.
Panel type
• ZS1, UniGear
type ZS1,
UniSafe,
Powerbloc
and Mounting
frame
• ZS8.4
• It is possible to encode the control wiring plug
connector to define the assignment of the
breaker withdrawable parts to particular panels.
Impermissible combinations of withdrawable
parts and panels are thus prevented. The
possible encoding of a 58-pin plug is shown in
figure 9/17.
Plug type Figure no.
58-pin control 10/14 and
wiring plug 10/15
64-pin control 10/16 and
wiring plug 10/17